Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * (Tentative) USB Audio Driver for ALSA | |
3 | * | |
4 | * Mixer control part | |
5 | * | |
6 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> | |
7 | * | |
8 | * Many codes borrowed from audio.c by | |
9 | * Alan Cox (alan@lxorguk.ukuu.org.uk) | |
10 | * Thomas Sailer (sailer@ife.ee.ethz.ch) | |
11 | * | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License as published by | |
15 | * the Free Software Foundation; either version 2 of the License, or | |
16 | * (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
26 | * | |
27 | */ | |
28 | ||
157a57b6 DM |
29 | /* |
30 | * TODOs, for both the mixer and the streaming interfaces: | |
31 | * | |
32 | * - support for UAC2 effect units | |
33 | * - support for graphical equalizers | |
34 | * - RANGE and MEM set commands (UAC2) | |
35 | * - RANGE and MEM interrupt dispatchers (UAC2) | |
36 | * - audio channel clustering (UAC2) | |
37 | * - audio sample rate converter units (UAC2) | |
38 | * - proper handling of clock multipliers (UAC2) | |
39 | * - dispatch clock change notifications (UAC2) | |
40 | * - stop PCM streams which use a clock that became invalid | |
41 | * - stop PCM streams which use a clock selector that has changed | |
42 | * - parse available sample rates again when clock sources changed | |
43 | */ | |
44 | ||
1da177e4 LT |
45 | #include <linux/bitops.h> |
46 | #include <linux/init.h> | |
47 | #include <linux/list.h> | |
48 | #include <linux/slab.h> | |
49 | #include <linux/string.h> | |
50 | #include <linux/usb.h> | |
28e1b773 | 51 | #include <linux/usb/audio.h> |
23caaf19 | 52 | #include <linux/usb/audio-v2.h> |
28e1b773 | 53 | |
1da177e4 LT |
54 | #include <sound/core.h> |
55 | #include <sound/control.h> | |
b259b10c | 56 | #include <sound/hwdep.h> |
aafad562 | 57 | #include <sound/info.h> |
7bc5ba7e | 58 | #include <sound/tlv.h> |
1da177e4 LT |
59 | |
60 | #include "usbaudio.h" | |
f0b5e634 | 61 | #include "mixer.h" |
e5779998 | 62 | #include "helper.h" |
7b1eda22 | 63 | #include "mixer_quirks.h" |
88a8516a | 64 | #include "power.h" |
4d1a70da | 65 | |
ebfdeea3 JK |
66 | #define MAX_ID_ELEMS 256 |
67 | ||
1da177e4 LT |
68 | struct usb_audio_term { |
69 | int id; | |
70 | int type; | |
71 | int channels; | |
72 | unsigned int chconfig; | |
73 | int name; | |
74 | }; | |
75 | ||
76 | struct usbmix_name_map; | |
77 | ||
86e07d34 TI |
78 | struct mixer_build { |
79 | struct snd_usb_audio *chip; | |
84957a8a | 80 | struct usb_mixer_interface *mixer; |
1da177e4 LT |
81 | unsigned char *buffer; |
82 | unsigned int buflen; | |
291186e0 | 83 | DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); |
86e07d34 | 84 | struct usb_audio_term oterm; |
1da177e4 | 85 | const struct usbmix_name_map *map; |
8e062ec7 | 86 | const struct usbmix_selector_map *selector_map; |
1da177e4 LT |
87 | }; |
88 | ||
1cdfa9f3 | 89 | /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ |
7d2b451e SK |
90 | enum { |
91 | USB_XU_CLOCK_RATE = 0xe301, | |
92 | USB_XU_CLOCK_SOURCE = 0xe302, | |
93 | USB_XU_DIGITAL_IO_STATUS = 0xe303, | |
94 | USB_XU_DEVICE_OPTIONS = 0xe304, | |
95 | USB_XU_DIRECT_MONITORING = 0xe305, | |
96 | USB_XU_METERING = 0xe306 | |
97 | }; | |
98 | enum { | |
99 | USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ | |
100 | USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ | |
101 | USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ | |
102 | USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ | |
103 | }; | |
1da177e4 LT |
104 | |
105 | /* | |
106 | * manual mapping of mixer names | |
107 | * if the mixer topology is too complicated and the parsed names are | |
108 | * ambiguous, add the entries in usbmixer_maps.c. | |
109 | */ | |
f0b5e634 | 110 | #include "mixer_maps.c" |
1da177e4 | 111 | |
c3a3e040 JK |
112 | static const struct usbmix_name_map * |
113 | find_map(struct mixer_build *state, int unitid, int control) | |
1da177e4 | 114 | { |
c3a3e040 | 115 | const struct usbmix_name_map *p = state->map; |
1da177e4 | 116 | |
c3a3e040 JK |
117 | if (!p) |
118 | return NULL; | |
1da177e4 LT |
119 | |
120 | for (p = state->map; p->id; p++) { | |
c3a3e040 JK |
121 | if (p->id == unitid && |
122 | (!control || !p->control || control == p->control)) | |
123 | return p; | |
1da177e4 | 124 | } |
c3a3e040 | 125 | return NULL; |
1da177e4 LT |
126 | } |
127 | ||
c3a3e040 JK |
128 | /* get the mapped name if the unit matches */ |
129 | static int | |
130 | check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) | |
1da177e4 | 131 | { |
c3a3e040 JK |
132 | if (!p || !p->name) |
133 | return 0; | |
1da177e4 | 134 | |
c3a3e040 JK |
135 | buflen--; |
136 | return strlcpy(buf, p->name, buflen); | |
137 | } | |
138 | ||
139 | /* check whether the control should be ignored */ | |
140 | static inline int | |
141 | check_ignored_ctl(const struct usbmix_name_map *p) | |
142 | { | |
143 | if (!p || p->name || p->dB) | |
1da177e4 | 144 | return 0; |
c3a3e040 JK |
145 | return 1; |
146 | } | |
147 | ||
148 | /* dB mapping */ | |
149 | static inline void check_mapped_dB(const struct usbmix_name_map *p, | |
150 | struct usb_mixer_elem_info *cval) | |
151 | { | |
152 | if (p && p->dB) { | |
153 | cval->dBmin = p->dB->min; | |
154 | cval->dBmax = p->dB->max; | |
38b65190 | 155 | cval->initialized = 1; |
1da177e4 | 156 | } |
1da177e4 LT |
157 | } |
158 | ||
8e062ec7 | 159 | /* get the mapped selector source name */ |
86e07d34 | 160 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
161 | int index, char *buf, int buflen) |
162 | { | |
163 | const struct usbmix_selector_map *p; | |
164 | ||
6bc170e4 | 165 | if (!state->selector_map) |
8e062ec7 CL |
166 | return 0; |
167 | for (p = state->selector_map; p->id; p++) { | |
168 | if (p->id == unitid && index < p->count) | |
169 | return strlcpy(buf, p->names[index], buflen); | |
170 | } | |
171 | return 0; | |
172 | } | |
173 | ||
1da177e4 LT |
174 | /* |
175 | * find an audio control unit with the given unit id | |
176 | */ | |
6bc170e4 DM |
177 | static void *find_audio_control_unit(struct mixer_build *state, |
178 | unsigned char unit) | |
1da177e4 | 179 | { |
67e1daa0 DM |
180 | /* we just parse the header */ |
181 | struct uac_feature_unit_descriptor *hdr = NULL; | |
182 | ||
183 | while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, | |
184 | USB_DT_CS_INTERFACE)) != NULL) { | |
185 | if (hdr->bLength >= 4 && | |
186 | hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && | |
187 | hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && | |
188 | hdr->bUnitID == unit) | |
189 | return hdr; | |
1da177e4 | 190 | } |
67e1daa0 | 191 | |
1da177e4 LT |
192 | return NULL; |
193 | } | |
194 | ||
1da177e4 LT |
195 | /* |
196 | * copy a string with the given id | |
197 | */ | |
6bc170e4 DM |
198 | static int snd_usb_copy_string_desc(struct mixer_build *state, |
199 | int index, char *buf, int maxlen) | |
1da177e4 LT |
200 | { |
201 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
202 | buf[len] = 0; | |
203 | return len; | |
204 | } | |
205 | ||
206 | /* | |
207 | * convert from the byte/word on usb descriptor to the zero-based integer | |
208 | */ | |
86e07d34 | 209 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
210 | { |
211 | switch (cval->val_type) { | |
212 | case USB_MIXER_BOOLEAN: | |
213 | return !!val; | |
214 | case USB_MIXER_INV_BOOLEAN: | |
215 | return !val; | |
216 | case USB_MIXER_U8: | |
217 | val &= 0xff; | |
218 | break; | |
219 | case USB_MIXER_S8: | |
220 | val &= 0xff; | |
221 | if (val >= 0x80) | |
222 | val -= 0x100; | |
223 | break; | |
224 | case USB_MIXER_U16: | |
225 | val &= 0xffff; | |
226 | break; | |
227 | case USB_MIXER_S16: | |
228 | val &= 0xffff; | |
229 | if (val >= 0x8000) | |
230 | val -= 0x10000; | |
231 | break; | |
232 | } | |
233 | return val; | |
234 | } | |
235 | ||
236 | /* | |
237 | * convert from the zero-based int to the byte/word for usb descriptor | |
238 | */ | |
86e07d34 | 239 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
240 | { |
241 | switch (cval->val_type) { | |
242 | case USB_MIXER_BOOLEAN: | |
243 | return !!val; | |
244 | case USB_MIXER_INV_BOOLEAN: | |
245 | return !val; | |
246 | case USB_MIXER_S8: | |
247 | case USB_MIXER_U8: | |
248 | return val & 0xff; | |
249 | case USB_MIXER_S16: | |
250 | case USB_MIXER_U16: | |
251 | return val & 0xffff; | |
252 | } | |
253 | return 0; /* not reached */ | |
254 | } | |
255 | ||
86e07d34 | 256 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 | 257 | { |
6bc170e4 | 258 | if (!cval->res) |
1da177e4 LT |
259 | cval->res = 1; |
260 | if (val < cval->min) | |
261 | return 0; | |
14790f1c TI |
262 | else if (val >= cval->max) |
263 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
264 | else |
265 | return (val - cval->min) / cval->res; | |
266 | } | |
267 | ||
86e07d34 | 268 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
269 | { |
270 | if (val < 0) | |
271 | return cval->min; | |
6bc170e4 | 272 | if (!cval->res) |
1da177e4 LT |
273 | cval->res = 1; |
274 | val *= cval->res; | |
275 | val += cval->min; | |
276 | if (val > cval->max) | |
277 | return cval->max; | |
278 | return val; | |
279 | } | |
280 | ||
281 | ||
282 | /* | |
283 | * retrieve a mixer value | |
284 | */ | |
285 | ||
6bc170e4 DM |
286 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, |
287 | int validx, int *value_ret) | |
1da177e4 | 288 | { |
3d8d4dcf | 289 | struct snd_usb_audio *chip = cval->mixer->chip; |
1da177e4 LT |
290 | unsigned char buf[2]; |
291 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
292 | int timeout = 10; | |
978520b7 | 293 | int idx = 0, err; |
1da177e4 | 294 | |
88a8516a ON |
295 | err = snd_usb_autoresume(cval->mixer->chip); |
296 | if (err < 0) | |
297 | return -EIO; | |
6bc170e4 | 298 | |
34f3c89f | 299 | down_read(&chip->shutdown_rwsem); |
1da177e4 | 300 | while (timeout-- > 0) { |
978520b7 TI |
301 | if (chip->shutdown) |
302 | break; | |
303 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); | |
3d8d4dcf | 304 | if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, |
1da177e4 | 305 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
978520b7 | 306 | validx, idx, buf, val_len) >= val_len) { |
1da177e4 | 307 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
978520b7 TI |
308 | err = 0; |
309 | goto out; | |
1da177e4 LT |
310 | } |
311 | } | |
0ba41d91 TI |
312 | usb_audio_dbg(chip, |
313 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
314 | request, validx, idx, cval->val_type); | |
978520b7 TI |
315 | err = -EINVAL; |
316 | ||
317 | out: | |
34f3c89f | 318 | up_read(&chip->shutdown_rwsem); |
978520b7 TI |
319 | snd_usb_autosuspend(cval->mixer->chip); |
320 | return err; | |
1da177e4 LT |
321 | } |
322 | ||
6bc170e4 DM |
323 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, |
324 | int validx, int *value_ret) | |
23caaf19 | 325 | { |
3d8d4dcf | 326 | struct snd_usb_audio *chip = cval->mixer->chip; |
6bc170e4 | 327 | unsigned char buf[2 + 3 * sizeof(__u16)]; /* enough space for one range */ |
23caaf19 | 328 | unsigned char *val; |
978520b7 | 329 | int idx = 0, ret, size; |
23caaf19 DM |
330 | __u8 bRequest; |
331 | ||
e8bdb6bb DM |
332 | if (request == UAC_GET_CUR) { |
333 | bRequest = UAC2_CS_CUR; | |
334 | size = sizeof(__u16); | |
335 | } else { | |
336 | bRequest = UAC2_CS_RANGE; | |
337 | size = sizeof(buf); | |
338 | } | |
339 | ||
340 | memset(buf, 0, sizeof(buf)); | |
23caaf19 | 341 | |
88a8516a ON |
342 | ret = snd_usb_autoresume(chip) ? -EIO : 0; |
343 | if (ret) | |
344 | goto error; | |
345 | ||
34f3c89f | 346 | down_read(&chip->shutdown_rwsem); |
6bc170e4 | 347 | if (chip->shutdown) { |
978520b7 | 348 | ret = -ENODEV; |
6bc170e4 | 349 | } else { |
978520b7 TI |
350 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); |
351 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, | |
23caaf19 | 352 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
978520b7 TI |
353 | validx, idx, buf, size); |
354 | } | |
34f3c89f | 355 | up_read(&chip->shutdown_rwsem); |
88a8516a | 356 | snd_usb_autosuspend(chip); |
23caaf19 DM |
357 | |
358 | if (ret < 0) { | |
88a8516a | 359 | error: |
0ba41d91 TI |
360 | usb_audio_err(chip, |
361 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
362 | request, validx, idx, cval->val_type); | |
23caaf19 DM |
363 | return ret; |
364 | } | |
365 | ||
e8bdb6bb DM |
366 | /* FIXME: how should we handle multiple triplets here? */ |
367 | ||
23caaf19 DM |
368 | switch (request) { |
369 | case UAC_GET_CUR: | |
370 | val = buf; | |
371 | break; | |
372 | case UAC_GET_MIN: | |
373 | val = buf + sizeof(__u16); | |
374 | break; | |
375 | case UAC_GET_MAX: | |
376 | val = buf + sizeof(__u16) * 2; | |
377 | break; | |
378 | case UAC_GET_RES: | |
379 | val = buf + sizeof(__u16) * 3; | |
380 | break; | |
381 | default: | |
382 | return -EINVAL; | |
383 | } | |
384 | ||
385 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); | |
386 | ||
387 | return 0; | |
388 | } | |
389 | ||
6bc170e4 DM |
390 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, |
391 | int validx, int *value_ret) | |
23caaf19 | 392 | { |
9f814105 EZ |
393 | validx += cval->idx_off; |
394 | ||
23caaf19 DM |
395 | return (cval->mixer->protocol == UAC_VERSION_1) ? |
396 | get_ctl_value_v1(cval, request, validx, value_ret) : | |
397 | get_ctl_value_v2(cval, request, validx, value_ret); | |
398 | } | |
399 | ||
6bc170e4 DM |
400 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, |
401 | int validx, int *value) | |
1da177e4 | 402 | { |
de48c7bc | 403 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
404 | } |
405 | ||
406 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
407 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
408 | int channel, int *value) | |
1da177e4 | 409 | { |
6bc170e4 DM |
410 | return get_ctl_value(cval, UAC_GET_CUR, |
411 | (cval->control << 8) | channel, | |
412 | value); | |
1da177e4 LT |
413 | } |
414 | ||
641b4879 TI |
415 | static int get_cur_mix_value(struct usb_mixer_elem_info *cval, |
416 | int channel, int index, int *value) | |
417 | { | |
418 | int err; | |
419 | ||
420 | if (cval->cached & (1 << channel)) { | |
421 | *value = cval->cache_val[index]; | |
422 | return 0; | |
423 | } | |
424 | err = get_cur_mix_raw(cval, channel, value); | |
425 | if (err < 0) { | |
426 | if (!cval->mixer->ignore_ctl_error) | |
0ba41d91 TI |
427 | usb_audio_dbg(cval->mixer->chip, |
428 | "cannot get current value for control %d ch %d: err = %d\n", | |
6bc170e4 | 429 | cval->control, channel, err); |
641b4879 TI |
430 | return err; |
431 | } | |
432 | cval->cached |= 1 << channel; | |
433 | cval->cache_val[index] = *value; | |
434 | return 0; | |
435 | } | |
436 | ||
1da177e4 LT |
437 | /* |
438 | * set a mixer value | |
439 | */ | |
440 | ||
7b1eda22 DM |
441 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
442 | int request, int validx, int value_set) | |
1da177e4 | 443 | { |
3d8d4dcf | 444 | struct snd_usb_audio *chip = cval->mixer->chip; |
1da177e4 | 445 | unsigned char buf[2]; |
978520b7 | 446 | int idx = 0, val_len, err, timeout = 10; |
23caaf19 | 447 | |
9f814105 EZ |
448 | validx += cval->idx_off; |
449 | ||
23caaf19 DM |
450 | if (cval->mixer->protocol == UAC_VERSION_1) { |
451 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
452 | } else { /* UAC_VERSION_2 */ | |
453 | /* audio class v2 controls are always 2 bytes in size */ | |
454 | val_len = sizeof(__u16); | |
455 | ||
456 | /* FIXME */ | |
457 | if (request != UAC_SET_CUR) { | |
0ba41d91 | 458 | usb_audio_dbg(chip, "RANGE setting not yet supported\n"); |
23caaf19 DM |
459 | return -EINVAL; |
460 | } | |
461 | ||
462 | request = UAC2_CS_CUR; | |
463 | } | |
1da177e4 LT |
464 | |
465 | value_set = convert_bytes_value(cval, value_set); | |
466 | buf[0] = value_set & 0xff; | |
467 | buf[1] = (value_set >> 8) & 0xff; | |
88a8516a ON |
468 | err = snd_usb_autoresume(chip); |
469 | if (err < 0) | |
470 | return -EIO; | |
34f3c89f | 471 | down_read(&chip->shutdown_rwsem); |
978520b7 TI |
472 | while (timeout-- > 0) { |
473 | if (chip->shutdown) | |
474 | break; | |
475 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); | |
3d8d4dcf DM |
476 | if (snd_usb_ctl_msg(chip->dev, |
477 | usb_sndctrlpipe(chip->dev, 0), request, | |
1da177e4 | 478 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, |
978520b7 TI |
479 | validx, idx, buf, val_len) >= 0) { |
480 | err = 0; | |
481 | goto out; | |
88a8516a | 482 | } |
978520b7 | 483 | } |
0ba41d91 | 484 | usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
6bc170e4 | 485 | request, validx, idx, cval->val_type, buf[0], buf[1]); |
978520b7 TI |
486 | err = -EINVAL; |
487 | ||
488 | out: | |
34f3c89f | 489 | up_read(&chip->shutdown_rwsem); |
978520b7 TI |
490 | snd_usb_autosuspend(chip); |
491 | return err; | |
1da177e4 LT |
492 | } |
493 | ||
6bc170e4 DM |
494 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, |
495 | int validx, int value) | |
1da177e4 | 496 | { |
7b1eda22 | 497 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
498 | } |
499 | ||
641b4879 TI |
500 | static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
501 | int index, int value) | |
1da177e4 | 502 | { |
641b4879 | 503 | int err; |
a6a33259 DM |
504 | unsigned int read_only = (channel == 0) ? |
505 | cval->master_readonly : | |
506 | cval->ch_readonly & (1 << (channel - 1)); | |
507 | ||
508 | if (read_only) { | |
0ba41d91 TI |
509 | usb_audio_dbg(cval->mixer->chip, |
510 | "%s(): channel %d of control %d is read_only\n", | |
a6a33259 DM |
511 | __func__, channel, cval->control); |
512 | return 0; | |
513 | } | |
514 | ||
6bc170e4 DM |
515 | err = snd_usb_mixer_set_ctl_value(cval, |
516 | UAC_SET_CUR, (cval->control << 8) | channel, | |
517 | value); | |
641b4879 TI |
518 | if (err < 0) |
519 | return err; | |
520 | cval->cached |= 1 << channel; | |
521 | cval->cache_val[index] = value; | |
522 | return 0; | |
1da177e4 LT |
523 | } |
524 | ||
7bc5ba7e TI |
525 | /* |
526 | * TLV callback for mixer volume controls | |
527 | */ | |
285de9c0 | 528 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
7bc5ba7e TI |
529 | unsigned int size, unsigned int __user *_tlv) |
530 | { | |
531 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 532 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
533 | |
534 | if (size < sizeof(scale)) | |
535 | return -ENOMEM; | |
c3a3e040 JK |
536 | scale[2] = cval->dBmin; |
537 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
538 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
539 | return -EFAULT; | |
540 | return 0; | |
541 | } | |
1da177e4 LT |
542 | |
543 | /* | |
544 | * parser routines begin here... | |
545 | */ | |
546 | ||
86e07d34 | 547 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
548 | |
549 | ||
550 | /* | |
551 | * check if the input/output channel routing is enabled on the given bitmap. | |
552 | * used for mixer unit parser | |
553 | */ | |
6bc170e4 DM |
554 | static int check_matrix_bitmap(unsigned char *bmap, |
555 | int ich, int och, int num_outs) | |
1da177e4 LT |
556 | { |
557 | int idx = ich * num_outs + och; | |
558 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
559 | } | |
560 | ||
1da177e4 LT |
561 | /* |
562 | * add an alsa control element | |
563 | * search and increment the index until an empty slot is found. | |
564 | * | |
565 | * if failed, give up and free the control instance. | |
566 | */ | |
567 | ||
ef9d5970 DM |
568 | int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, |
569 | struct snd_kcontrol *kctl) | |
1da177e4 | 570 | { |
86e07d34 | 571 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 572 | int err; |
84957a8a | 573 | |
ef9d5970 | 574 | while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) |
1da177e4 | 575 | kctl->id.index++; |
ef9d5970 | 576 | if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { |
6bc170e4 DM |
577 | usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", |
578 | err); | |
6639b6c2 | 579 | return err; |
1da177e4 | 580 | } |
6639b6c2 | 581 | cval->elem_id = &kctl->id; |
ef9d5970 DM |
582 | cval->next_id_elem = mixer->id_elems[cval->id]; |
583 | mixer->id_elems[cval->id] = cval; | |
6639b6c2 | 584 | return 0; |
1da177e4 LT |
585 | } |
586 | ||
1da177e4 LT |
587 | /* |
588 | * get a terminal name string | |
589 | */ | |
590 | ||
591 | static struct iterm_name_combo { | |
592 | int type; | |
593 | char *name; | |
594 | } iterm_names[] = { | |
595 | { 0x0300, "Output" }, | |
596 | { 0x0301, "Speaker" }, | |
597 | { 0x0302, "Headphone" }, | |
598 | { 0x0303, "HMD Audio" }, | |
599 | { 0x0304, "Desktop Speaker" }, | |
600 | { 0x0305, "Room Speaker" }, | |
601 | { 0x0306, "Com Speaker" }, | |
602 | { 0x0307, "LFE" }, | |
603 | { 0x0600, "External In" }, | |
604 | { 0x0601, "Analog In" }, | |
605 | { 0x0602, "Digital In" }, | |
606 | { 0x0603, "Line" }, | |
607 | { 0x0604, "Legacy In" }, | |
608 | { 0x0605, "IEC958 In" }, | |
609 | { 0x0606, "1394 DA Stream" }, | |
610 | { 0x0607, "1394 DV Stream" }, | |
611 | { 0x0700, "Embedded" }, | |
612 | { 0x0701, "Noise Source" }, | |
613 | { 0x0702, "Equalization Noise" }, | |
614 | { 0x0703, "CD" }, | |
615 | { 0x0704, "DAT" }, | |
616 | { 0x0705, "DCC" }, | |
617 | { 0x0706, "MiniDisk" }, | |
618 | { 0x0707, "Analog Tape" }, | |
619 | { 0x0708, "Phonograph" }, | |
620 | { 0x0709, "VCR Audio" }, | |
621 | { 0x070a, "Video Disk Audio" }, | |
622 | { 0x070b, "DVD Audio" }, | |
623 | { 0x070c, "TV Tuner Audio" }, | |
624 | { 0x070d, "Satellite Rec Audio" }, | |
625 | { 0x070e, "Cable Tuner Audio" }, | |
626 | { 0x070f, "DSS Audio" }, | |
627 | { 0x0710, "Radio Receiver" }, | |
628 | { 0x0711, "Radio Transmitter" }, | |
629 | { 0x0712, "Multi-Track Recorder" }, | |
630 | { 0x0713, "Synthesizer" }, | |
631 | { 0 }, | |
632 | }; | |
633 | ||
86e07d34 | 634 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
635 | unsigned char *name, int maxlen, int term_only) |
636 | { | |
637 | struct iterm_name_combo *names; | |
638 | ||
639 | if (iterm->name) | |
6bc170e4 DM |
640 | return snd_usb_copy_string_desc(state, iterm->name, |
641 | name, maxlen); | |
1da177e4 LT |
642 | |
643 | /* virtual type - not a real terminal */ | |
644 | if (iterm->type >> 16) { | |
645 | if (term_only) | |
646 | return 0; | |
647 | switch (iterm->type >> 16) { | |
de48c7bc | 648 | case UAC_SELECTOR_UNIT: |
6bc170e4 DM |
649 | strcpy(name, "Selector"); |
650 | return 8; | |
69da9bcb | 651 | case UAC1_PROCESSING_UNIT: |
6bc170e4 DM |
652 | strcpy(name, "Process Unit"); |
653 | return 12; | |
69da9bcb | 654 | case UAC1_EXTENSION_UNIT: |
6bc170e4 DM |
655 | strcpy(name, "Ext Unit"); |
656 | return 8; | |
de48c7bc | 657 | case UAC_MIXER_UNIT: |
6bc170e4 DM |
658 | strcpy(name, "Mixer"); |
659 | return 5; | |
1da177e4 LT |
660 | default: |
661 | return sprintf(name, "Unit %d", iterm->id); | |
662 | } | |
663 | } | |
664 | ||
665 | switch (iterm->type & 0xff00) { | |
666 | case 0x0100: | |
6bc170e4 DM |
667 | strcpy(name, "PCM"); |
668 | return 3; | |
1da177e4 | 669 | case 0x0200: |
6bc170e4 DM |
670 | strcpy(name, "Mic"); |
671 | return 3; | |
1da177e4 | 672 | case 0x0400: |
6bc170e4 DM |
673 | strcpy(name, "Headset"); |
674 | return 7; | |
1da177e4 | 675 | case 0x0500: |
6bc170e4 DM |
676 | strcpy(name, "Phone"); |
677 | return 5; | |
1da177e4 LT |
678 | } |
679 | ||
6bc170e4 | 680 | for (names = iterm_names; names->type; names++) { |
1da177e4 LT |
681 | if (names->type == iterm->type) { |
682 | strcpy(name, names->name); | |
683 | return strlen(names->name); | |
684 | } | |
6bc170e4 DM |
685 | } |
686 | ||
1da177e4 LT |
687 | return 0; |
688 | } | |
689 | ||
1da177e4 LT |
690 | /* |
691 | * parse the source unit recursively until it reaches to a terminal | |
692 | * or a branched unit. | |
693 | */ | |
6bc170e4 DM |
694 | static int check_input_term(struct mixer_build *state, int id, |
695 | struct usb_audio_term *term) | |
1da177e4 | 696 | { |
09414207 | 697 | int err; |
23caaf19 | 698 | void *p1; |
1da177e4 LT |
699 | |
700 | memset(term, 0, sizeof(*term)); | |
701 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 702 | unsigned char *hdr = p1; |
1da177e4 | 703 | term->id = id; |
23caaf19 | 704 | switch (hdr[2]) { |
de48c7bc | 705 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
706 | if (state->mixer->protocol == UAC_VERSION_1) { |
707 | struct uac_input_terminal_descriptor *d = p1; | |
708 | term->type = le16_to_cpu(d->wTerminalType); | |
709 | term->channels = d->bNrChannels; | |
710 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
711 | term->name = d->iTerminal; | |
712 | } else { /* UAC_VERSION_2 */ | |
713 | struct uac2_input_terminal_descriptor *d = p1; | |
714 | term->type = le16_to_cpu(d->wTerminalType); | |
715 | term->channels = d->bNrChannels; | |
716 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
717 | term->name = d->iTerminal; | |
09414207 DM |
718 | |
719 | /* call recursively to get the clock selectors */ | |
720 | err = check_input_term(state, d->bCSourceID, term); | |
721 | if (err < 0) | |
722 | return err; | |
23caaf19 | 723 | } |
1da177e4 | 724 | return 0; |
23caaf19 DM |
725 | case UAC_FEATURE_UNIT: { |
726 | /* the header is the same for v1 and v2 */ | |
727 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 728 | id = d->bSourceID; |
1da177e4 | 729 | break; /* continue to parse */ |
23caaf19 DM |
730 | } |
731 | case UAC_MIXER_UNIT: { | |
732 | struct uac_mixer_unit_descriptor *d = p1; | |
733 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
734 | term->channels = uac_mixer_unit_bNrChannels(d); | |
735 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
736 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 737 | return 0; |
23caaf19 | 738 | } |
09414207 DM |
739 | case UAC_SELECTOR_UNIT: |
740 | case UAC2_CLOCK_SELECTOR: { | |
23caaf19 | 741 | struct uac_selector_unit_descriptor *d = p1; |
1da177e4 | 742 | /* call recursively to retrieve the channel info */ |
4d7b86c9 DM |
743 | err = check_input_term(state, d->baSourceID[0], term); |
744 | if (err < 0) | |
745 | return err; | |
23caaf19 | 746 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 747 | term->id = id; |
23caaf19 | 748 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 749 | return 0; |
23caaf19 | 750 | } |
69da9bcb | 751 | case UAC1_PROCESSING_UNIT: |
5dae5fd2 EZ |
752 | case UAC1_EXTENSION_UNIT: |
753 | /* UAC2_PROCESSING_UNIT_V2 */ | |
61ac5130 TH |
754 | /* UAC2_EFFECT_UNIT */ |
755 | case UAC2_EXTENSION_UNIT_V2: { | |
23caaf19 | 756 | struct uac_processing_unit_descriptor *d = p1; |
5dae5fd2 EZ |
757 | |
758 | if (state->mixer->protocol == UAC_VERSION_2 && | |
759 | hdr[2] == UAC2_EFFECT_UNIT) { | |
760 | /* UAC2/UAC1 unit IDs overlap here in an | |
761 | * uncompatible way. Ignore this unit for now. | |
762 | */ | |
763 | return 0; | |
764 | } | |
765 | ||
23caaf19 DM |
766 | if (d->bNrInPins) { |
767 | id = d->baSourceID[0]; | |
1da177e4 LT |
768 | break; /* continue to parse */ |
769 | } | |
23caaf19 DM |
770 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
771 | term->channels = uac_processing_unit_bNrChannels(d); | |
772 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
773 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 774 | return 0; |
23caaf19 | 775 | } |
09414207 DM |
776 | case UAC2_CLOCK_SOURCE: { |
777 | struct uac_clock_source_descriptor *d = p1; | |
778 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
779 | term->id = id; | |
780 | term->name = d->iClockSource; | |
781 | return 0; | |
782 | } | |
1da177e4 LT |
783 | default: |
784 | return -ENODEV; | |
785 | } | |
786 | } | |
787 | return -ENODEV; | |
788 | } | |
789 | ||
1da177e4 LT |
790 | /* |
791 | * Feature Unit | |
792 | */ | |
793 | ||
794 | /* feature unit control information */ | |
795 | struct usb_feature_control_info { | |
796 | const char *name; | |
797 | unsigned int type; /* control type (mute, volume, etc.) */ | |
798 | }; | |
799 | ||
800 | static struct usb_feature_control_info audio_feature_info[] = { | |
2e0281d1 DM |
801 | { "Mute", USB_MIXER_INV_BOOLEAN }, |
802 | { "Volume", USB_MIXER_S16 }, | |
1da177e4 LT |
803 | { "Tone Control - Bass", USB_MIXER_S8 }, |
804 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
805 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
806 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
2e0281d1 DM |
807 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, |
808 | { "Delay Control", USB_MIXER_U16 }, | |
809 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
810 | { "Loudness", USB_MIXER_BOOLEAN }, | |
811 | /* UAC2 specific */ | |
812 | { "Input Gain Control", USB_MIXER_U16 }, | |
813 | { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, | |
814 | { "Phase Inverter Control", USB_MIXER_BOOLEAN }, | |
1da177e4 LT |
815 | }; |
816 | ||
1da177e4 | 817 | /* private_free callback */ |
86e07d34 | 818 | static void usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 819 | { |
4d572776 JJ |
820 | kfree(kctl->private_data); |
821 | kctl->private_data = NULL; | |
1da177e4 LT |
822 | } |
823 | ||
1da177e4 LT |
824 | /* |
825 | * interface to ALSA control for feature/mixer units | |
826 | */ | |
827 | ||
dcaaf9f2 TI |
828 | /* volume control quirks */ |
829 | static void volume_control_quirks(struct usb_mixer_elem_info *cval, | |
830 | struct snd_kcontrol *kctl) | |
831 | { | |
0ba41d91 TI |
832 | struct snd_usb_audio *chip = cval->mixer->chip; |
833 | switch (chip->usb_id) { | |
d50ed624 | 834 | case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ |
e9a25e04 | 835 | case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ |
d50ed624 EZ |
836 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { |
837 | cval->min = 0x0000; | |
838 | cval->max = 0xffff; | |
839 | cval->res = 0x00e6; | |
840 | break; | |
841 | } | |
842 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
843 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
844 | cval->min = 0x00; | |
845 | cval->max = 0xff; | |
846 | break; | |
847 | } | |
848 | if (strstr(kctl->id.name, "Effect Return") != NULL) { | |
849 | cval->min = 0xb706; | |
850 | cval->max = 0xff7b; | |
851 | cval->res = 0x0073; | |
852 | break; | |
853 | } | |
854 | if ((strstr(kctl->id.name, "Playback Volume") != NULL) || | |
855 | (strstr(kctl->id.name, "Effect Send") != NULL)) { | |
856 | cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ | |
857 | cval->max = 0xfcfe; | |
858 | cval->res = 0x0073; | |
859 | } | |
860 | break; | |
861 | ||
d34bf148 FH |
862 | case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ |
863 | case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ | |
864 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { | |
0ba41d91 TI |
865 | usb_audio_info(chip, |
866 | "set quirk for FTU Effect Duration\n"); | |
d34bf148 FH |
867 | cval->min = 0x0000; |
868 | cval->max = 0x7f00; | |
869 | cval->res = 0x0100; | |
870 | break; | |
871 | } | |
872 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
873 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
0ba41d91 TI |
874 | usb_audio_info(chip, |
875 | "set quirks for FTU Effect Feedback/Volume\n"); | |
d34bf148 FH |
876 | cval->min = 0x00; |
877 | cval->max = 0x7f; | |
878 | break; | |
879 | } | |
880 | break; | |
881 | ||
dcaaf9f2 TI |
882 | case USB_ID(0x0471, 0x0101): |
883 | case USB_ID(0x0471, 0x0104): | |
884 | case USB_ID(0x0471, 0x0105): | |
885 | case USB_ID(0x0672, 0x1041): | |
886 | /* quirk for UDA1321/N101. | |
887 | * note that detection between firmware 2.1.1.7 (N101) | |
888 | * and later 2.1.1.21 is not very clear from datasheets. | |
889 | * I hope that the min value is -15360 for newer firmware --jk | |
890 | */ | |
891 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && | |
892 | cval->min == -15616) { | |
0ba41d91 | 893 | usb_audio_info(chip, |
dcaaf9f2 TI |
894 | "set volume quirk for UDA1321/N101 chip\n"); |
895 | cval->max = -256; | |
896 | } | |
897 | break; | |
898 | ||
899 | case USB_ID(0x046d, 0x09a4): | |
900 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 901 | usb_audio_info(chip, |
dcaaf9f2 TI |
902 | "set volume quirk for QuickCam E3500\n"); |
903 | cval->min = 6080; | |
904 | cval->max = 8768; | |
905 | cval->res = 192; | |
906 | } | |
907 | break; | |
908 | ||
e805ca8b | 909 | case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ |
dcaaf9f2 TI |
910 | case USB_ID(0x046d, 0x0808): |
911 | case USB_ID(0x046d, 0x0809): | |
36691e1b | 912 | case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ |
55c0008b | 913 | case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ |
11e7064f | 914 | case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ |
140d37de | 915 | case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ |
dcaaf9f2 TI |
916 | case USB_ID(0x046d, 0x0991): |
917 | /* Most audio usb devices lie about volume resolution. | |
918 | * Most Logitech webcams have res = 384. | |
919 | * Proboly there is some logitech magic behind this number --fishor | |
920 | */ | |
921 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 922 | usb_audio_info(chip, |
dcaaf9f2 TI |
923 | "set resolution quirk: cval->res = 384\n"); |
924 | cval->res = 384; | |
925 | } | |
926 | break; | |
dcaaf9f2 TI |
927 | } |
928 | } | |
929 | ||
1da177e4 LT |
930 | /* |
931 | * retrieve the minimum and maximum values for the specified control | |
932 | */ | |
dcaaf9f2 TI |
933 | static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, |
934 | int default_min, struct snd_kcontrol *kctl) | |
1da177e4 LT |
935 | { |
936 | /* for failsafe */ | |
937 | cval->min = default_min; | |
938 | cval->max = cval->min + 1; | |
939 | cval->res = 1; | |
c3a3e040 | 940 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
941 | |
942 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
943 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
944 | cval->initialized = 1; | |
945 | } else { | |
946 | int minchn = 0; | |
947 | if (cval->cmask) { | |
948 | int i; | |
949 | for (i = 0; i < MAX_CHANNELS; i++) | |
950 | if (cval->cmask & (1 << i)) { | |
951 | minchn = i + 1; | |
952 | break; | |
953 | } | |
954 | } | |
de48c7bc DM |
955 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
956 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
0ba41d91 TI |
957 | usb_audio_err(cval->mixer->chip, |
958 | "%d:%d: cannot get min/max values for control %d (id %d)\n", | |
6bc170e4 DM |
959 | cval->id, snd_usb_ctrl_intf(cval->mixer->chip), |
960 | cval->control, cval->id); | |
1da177e4 LT |
961 | return -EINVAL; |
962 | } | |
6bc170e4 DM |
963 | if (get_ctl_value(cval, UAC_GET_RES, |
964 | (cval->control << 8) | minchn, | |
965 | &cval->res) < 0) { | |
1da177e4 LT |
966 | cval->res = 1; |
967 | } else { | |
968 | int last_valid_res = cval->res; | |
969 | ||
970 | while (cval->res > 1) { | |
7b1eda22 | 971 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
6bc170e4 DM |
972 | (cval->control << 8) | minchn, |
973 | cval->res / 2) < 0) | |
1da177e4 LT |
974 | break; |
975 | cval->res /= 2; | |
976 | } | |
6bc170e4 DM |
977 | if (get_ctl_value(cval, UAC_GET_RES, |
978 | (cval->control << 8) | minchn, &cval->res) < 0) | |
1da177e4 LT |
979 | cval->res = last_valid_res; |
980 | } | |
981 | if (cval->res == 0) | |
982 | cval->res = 1; | |
14790f1c TI |
983 | |
984 | /* Additional checks for the proper resolution | |
985 | * | |
986 | * Some devices report smaller resolutions than actually | |
987 | * reacting. They don't return errors but simply clip | |
988 | * to the lower aligned value. | |
989 | */ | |
990 | if (cval->min + cval->res < cval->max) { | |
991 | int last_valid_res = cval->res; | |
992 | int saved, test, check; | |
641b4879 | 993 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
994 | for (;;) { |
995 | test = saved; | |
996 | if (test < cval->max) | |
997 | test += cval->res; | |
998 | else | |
999 | test -= cval->res; | |
1000 | if (test < cval->min || test > cval->max || | |
641b4879 TI |
1001 | set_cur_mix_value(cval, minchn, 0, test) || |
1002 | get_cur_mix_raw(cval, minchn, &check)) { | |
14790f1c TI |
1003 | cval->res = last_valid_res; |
1004 | break; | |
1005 | } | |
1006 | if (test == check) | |
1007 | break; | |
1008 | cval->res *= 2; | |
1009 | } | |
641b4879 | 1010 | set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
1011 | } |
1012 | ||
1da177e4 LT |
1013 | cval->initialized = 1; |
1014 | } | |
c3a3e040 | 1015 | |
dcaaf9f2 TI |
1016 | if (kctl) |
1017 | volume_control_quirks(cval, kctl); | |
1018 | ||
c3a3e040 JK |
1019 | /* USB descriptions contain the dB scale in 1/256 dB unit |
1020 | * while ALSA TLV contains in 1/100 dB unit | |
1021 | */ | |
1022 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
1023 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
1024 | if (cval->dBmin > cval->dBmax) { | |
1025 | /* something is wrong; assume it's either from/to 0dB */ | |
1026 | if (cval->dBmin < 0) | |
1027 | cval->dBmax = 0; | |
1028 | else if (cval->dBmin > 0) | |
1029 | cval->dBmin = 0; | |
1030 | if (cval->dBmin > cval->dBmax) { | |
1031 | /* totally crap, return an error */ | |
1032 | return -EINVAL; | |
1033 | } | |
1034 | } | |
1035 | ||
1da177e4 LT |
1036 | return 0; |
1037 | } | |
1038 | ||
dcaaf9f2 | 1039 | #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) |
1da177e4 LT |
1040 | |
1041 | /* get a feature/mixer unit info */ | |
6bc170e4 DM |
1042 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, |
1043 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 1044 | { |
86e07d34 | 1045 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1046 | |
1047 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1048 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
1049 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1050 | else | |
1051 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1052 | uinfo->count = cval->channels; | |
1053 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1054 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
1055 | uinfo->value.integer.min = 0; | |
1056 | uinfo->value.integer.max = 1; | |
1057 | } else { | |
9fcd0ab1 | 1058 | if (!cval->initialized) { |
dcaaf9f2 | 1059 | get_min_max_with_quirks(cval, 0, kcontrol); |
9fcd0ab1 TI |
1060 | if (cval->initialized && cval->dBmin >= cval->dBmax) { |
1061 | kcontrol->vd[0].access &= | |
1062 | ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1063 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); | |
1064 | snd_ctl_notify(cval->mixer->chip->card, | |
1065 | SNDRV_CTL_EVENT_MASK_INFO, | |
1066 | &kcontrol->id); | |
1067 | } | |
1068 | } | |
1da177e4 | 1069 | uinfo->value.integer.min = 0; |
14790f1c TI |
1070 | uinfo->value.integer.max = |
1071 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
1072 | } |
1073 | return 0; | |
1074 | } | |
1075 | ||
1076 | /* get the current value from feature/mixer unit */ | |
6bc170e4 DM |
1077 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, |
1078 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1079 | { |
86e07d34 | 1080 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1081 | int c, cnt, val, err; |
1082 | ||
641b4879 | 1083 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
1084 | if (cval->cmask) { |
1085 | cnt = 0; | |
1086 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1087 | if (!(cval->cmask & (1 << c))) |
1088 | continue; | |
1089 | err = get_cur_mix_value(cval, c + 1, cnt, &val); | |
1090 | if (err < 0) | |
1091 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1092 | val = get_relative_value(cval, val); | |
1093 | ucontrol->value.integer.value[cnt] = val; | |
1094 | cnt++; | |
1da177e4 | 1095 | } |
641b4879 | 1096 | return 0; |
1da177e4 LT |
1097 | } else { |
1098 | /* master channel */ | |
641b4879 TI |
1099 | err = get_cur_mix_value(cval, 0, 0, &val); |
1100 | if (err < 0) | |
1101 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1da177e4 LT |
1102 | val = get_relative_value(cval, val); |
1103 | ucontrol->value.integer.value[0] = val; | |
1104 | } | |
1105 | return 0; | |
1106 | } | |
1107 | ||
1108 | /* put the current value to feature/mixer unit */ | |
6bc170e4 DM |
1109 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, |
1110 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1111 | { |
86e07d34 | 1112 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1113 | int c, cnt, val, oval, err; |
1114 | int changed = 0; | |
1115 | ||
1116 | if (cval->cmask) { | |
1117 | cnt = 0; | |
1118 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1119 | if (!(cval->cmask & (1 << c))) |
1120 | continue; | |
1121 | err = get_cur_mix_value(cval, c + 1, cnt, &oval); | |
1122 | if (err < 0) | |
1123 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1124 | val = ucontrol->value.integer.value[cnt]; | |
1125 | val = get_abs_value(cval, val); | |
1126 | if (oval != val) { | |
1127 | set_cur_mix_value(cval, c + 1, cnt, val); | |
1128 | changed = 1; | |
1da177e4 | 1129 | } |
641b4879 | 1130 | cnt++; |
1da177e4 LT |
1131 | } |
1132 | } else { | |
1133 | /* master channel */ | |
641b4879 | 1134 | err = get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 1135 | if (err < 0) |
641b4879 | 1136 | return cval->mixer->ignore_ctl_error ? 0 : err; |
1da177e4 LT |
1137 | val = ucontrol->value.integer.value[0]; |
1138 | val = get_abs_value(cval, val); | |
1139 | if (val != oval) { | |
641b4879 | 1140 | set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
1141 | changed = 1; |
1142 | } | |
1143 | } | |
1144 | return changed; | |
1145 | } | |
1146 | ||
86e07d34 | 1147 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
1148 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1149 | .name = "", /* will be filled later manually */ | |
1150 | .info = mixer_ctl_feature_info, | |
1151 | .get = mixer_ctl_feature_get, | |
1152 | .put = mixer_ctl_feature_put, | |
1153 | }; | |
1154 | ||
23caaf19 DM |
1155 | /* the read-only variant */ |
1156 | static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { | |
1157 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1158 | .name = "", /* will be filled later manually */ | |
1159 | .info = mixer_ctl_feature_info, | |
1160 | .get = mixer_ctl_feature_get, | |
1161 | .put = NULL, | |
1162 | }; | |
1163 | ||
6bc170e4 DM |
1164 | /* |
1165 | * This symbol is exported in order to allow the mixer quirks to | |
1166 | * hook up to the standard feature unit control mechanism | |
1167 | */ | |
9e38658f | 1168 | struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; |
1da177e4 LT |
1169 | |
1170 | /* | |
1171 | * build a feature control | |
1172 | */ | |
08d1e635 TI |
1173 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
1174 | { | |
1175 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
1176 | } | |
1177 | ||
6bc170e4 DM |
1178 | /* |
1179 | * A lot of headsets/headphones have a "Speaker" mixer. Make sure we | |
1180 | * rename it to "Headphone". We determine if something is a headphone | |
1181 | * similar to how udev determines form factor. | |
1182 | */ | |
9b4ef977 DH |
1183 | static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, |
1184 | struct snd_card *card) | |
1185 | { | |
1186 | const char *names_to_check[] = { | |
1187 | "Headset", "headset", "Headphone", "headphone", NULL}; | |
1188 | const char **s; | |
e0f17c75 | 1189 | bool found = false; |
9b4ef977 DH |
1190 | |
1191 | if (strcmp("Speaker", kctl->id.name)) | |
1192 | return; | |
1193 | ||
1194 | for (s = names_to_check; *s; s++) | |
1195 | if (strstr(card->shortname, *s)) { | |
e0f17c75 | 1196 | found = true; |
9b4ef977 DH |
1197 | break; |
1198 | } | |
1199 | ||
1200 | if (!found) | |
1201 | return; | |
1202 | ||
1203 | strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); | |
1204 | } | |
1205 | ||
99fc8645 | 1206 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 1207 | unsigned int ctl_mask, int control, |
23caaf19 | 1208 | struct usb_audio_term *iterm, int unitid, |
a6a33259 | 1209 | int readonly_mask) |
1da177e4 | 1210 | { |
99fc8645 | 1211 | struct uac_feature_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1212 | unsigned int len = 0; |
1213 | int mapped_name = 0; | |
99fc8645 | 1214 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
1215 | struct snd_kcontrol *kctl; |
1216 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 1217 | const struct usbmix_name_map *map; |
80acefff | 1218 | unsigned int range; |
1da177e4 LT |
1219 | |
1220 | control++; /* change from zero-based to 1-based value */ | |
1221 | ||
65f25da4 | 1222 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
1223 | /* FIXME: not supported yet */ |
1224 | return; | |
1225 | } | |
1226 | ||
c3a3e040 JK |
1227 | map = find_map(state, unitid, control); |
1228 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1229 | return; |
1230 | ||
561b220a | 1231 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 1232 | if (!cval) |
1da177e4 | 1233 | return; |
84957a8a | 1234 | cval->mixer = state->mixer; |
1da177e4 LT |
1235 | cval->id = unitid; |
1236 | cval->control = control; | |
1237 | cval->cmask = ctl_mask; | |
1238 | cval->val_type = audio_feature_info[control-1].type; | |
a6a33259 | 1239 | if (ctl_mask == 0) { |
1da177e4 | 1240 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
1241 | cval->master_readonly = readonly_mask; |
1242 | } else { | |
1da177e4 LT |
1243 | int i, c = 0; |
1244 | for (i = 0; i < 16; i++) | |
1245 | if (ctl_mask & (1 << i)) | |
1246 | c++; | |
1247 | cval->channels = c; | |
a6a33259 | 1248 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
1249 | } |
1250 | ||
6bc170e4 DM |
1251 | /* |
1252 | * If all channels in the mask are marked read-only, make the control | |
a6a33259 | 1253 | * read-only. set_cur_mix_value() will check the mask again and won't |
6bc170e4 DM |
1254 | * issue write commands to read-only channels. |
1255 | */ | |
a6a33259 | 1256 | if (cval->channels == readonly_mask) |
23caaf19 DM |
1257 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1258 | else | |
1259 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1260 | ||
6bc170e4 | 1261 | if (!kctl) { |
0ba41d91 | 1262 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1263 | kfree(cval); |
1264 | return; | |
1265 | } | |
1266 | kctl->private_free = usb_mixer_elem_free; | |
1267 | ||
c3a3e040 | 1268 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 | 1269 | mapped_name = len != 0; |
6bc170e4 | 1270 | if (!len && nameid) |
c3a3e040 JK |
1271 | len = snd_usb_copy_string_desc(state, nameid, |
1272 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
1273 | |
1274 | switch (control) { | |
65f25da4 DM |
1275 | case UAC_FU_MUTE: |
1276 | case UAC_FU_VOLUME: | |
6bc170e4 DM |
1277 | /* |
1278 | * determine the control name. the rule is: | |
1da177e4 LT |
1279 | * - if a name id is given in descriptor, use it. |
1280 | * - if the connected input can be determined, then use the name | |
1281 | * of terminal type. | |
1282 | * - if the connected output can be determined, use it. | |
1283 | * - otherwise, anonymous name. | |
1284 | */ | |
6bc170e4 DM |
1285 | if (!len) { |
1286 | len = get_term_name(state, iterm, kctl->id.name, | |
1287 | sizeof(kctl->id.name), 1); | |
1288 | if (!len) | |
1289 | len = get_term_name(state, &state->oterm, | |
1290 | kctl->id.name, | |
1291 | sizeof(kctl->id.name), 1); | |
1292 | if (!len) | |
1293 | len = snprintf(kctl->id.name, | |
1294 | sizeof(kctl->id.name), | |
1da177e4 LT |
1295 | "Feature %d", unitid); |
1296 | } | |
9b4ef977 DH |
1297 | |
1298 | if (!mapped_name) | |
1299 | check_no_speaker_on_headset(kctl, state->mixer->chip->card); | |
1300 | ||
6bc170e4 DM |
1301 | /* |
1302 | * determine the stream direction: | |
1da177e4 LT |
1303 | * if the connected output is USB stream, then it's likely a |
1304 | * capture stream. otherwise it should be playback (hopefully :) | |
1305 | */ | |
6bc170e4 DM |
1306 | if (!mapped_name && !(state->oterm.type >> 16)) { |
1307 | if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 1308 | len = append_ctl_name(kctl, " Capture"); |
6bc170e4 | 1309 | else |
08d1e635 | 1310 | len = append_ctl_name(kctl, " Playback"); |
1da177e4 | 1311 | } |
65f25da4 | 1312 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1313 | " Switch" : " Volume"); |
1da177e4 | 1314 | break; |
1da177e4 | 1315 | default: |
6bc170e4 | 1316 | if (!len) |
1da177e4 LT |
1317 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, |
1318 | sizeof(kctl->id.name)); | |
1319 | break; | |
1320 | } | |
1321 | ||
e182534d TI |
1322 | /* get min/max values */ |
1323 | get_min_max_with_quirks(cval, 0, kctl); | |
1324 | ||
1325 | if (control == UAC_FU_VOLUME) { | |
1326 | check_mapped_dB(map, cval); | |
1327 | if (cval->dBmin < cval->dBmax || !cval->initialized) { | |
1328 | kctl->tlv.c = snd_usb_mixer_vol_tlv; | |
1329 | kctl->vd[0].access |= | |
1330 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1331 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
1332 | } | |
1333 | } | |
1334 | ||
80acefff | 1335 | range = (cval->max - cval->min) / cval->res; |
6bc170e4 DM |
1336 | /* |
1337 | * Are there devices with volume range more than 255? I use a bit more | |
80acefff AF |
1338 | * to be sure. 384 is a resolution magic number found on Logitech |
1339 | * devices. It will definitively catch all buggy Logitech devices. | |
1340 | */ | |
1341 | if (range > 384) { | |
6bc170e4 | 1342 | usb_audio_warn(state->chip, |
82c1cf0a | 1343 | "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", |
6bc170e4 | 1344 | range); |
82c1cf0a MM |
1345 | usb_audio_warn(state->chip, |
1346 | "[%d] FU [%s] ch = %d, val = %d/%d/%d", | |
1347 | cval->id, kctl->id.name, cval->channels, | |
6bc170e4 | 1348 | cval->min, cval->max, cval->res); |
80acefff AF |
1349 | } |
1350 | ||
0ba41d91 | 1351 | usb_audio_dbg(state->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", |
6bc170e4 DM |
1352 | cval->id, kctl->id.name, cval->channels, |
1353 | cval->min, cval->max, cval->res); | |
ef9d5970 | 1354 | snd_usb_mixer_add_control(state->mixer, kctl); |
1da177e4 LT |
1355 | } |
1356 | ||
1da177e4 LT |
1357 | /* |
1358 | * parse a feature unit | |
1359 | * | |
25985edc | 1360 | * most of controls are defined here. |
1da177e4 | 1361 | */ |
6bc170e4 DM |
1362 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, |
1363 | void *_ftr) | |
1da177e4 LT |
1364 | { |
1365 | int channels, i, j; | |
86e07d34 | 1366 | struct usb_audio_term iterm; |
1da177e4 LT |
1367 | unsigned int master_bits, first_ch_bits; |
1368 | int err, csize; | |
23caaf19 DM |
1369 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1370 | __u8 *bmaControls; | |
1371 | ||
1372 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1373 | csize = hdr->bControlSize; | |
60c961a9 | 1374 | if (!csize) { |
0ba41d91 TI |
1375 | usb_audio_dbg(state->chip, |
1376 | "unit %u: invalid bControlSize == 0\n", | |
1377 | unitid); | |
60c961a9 NK |
1378 | return -EINVAL; |
1379 | } | |
23caaf19 DM |
1380 | channels = (hdr->bLength - 7) / csize - 1; |
1381 | bmaControls = hdr->bmaControls; | |
d56268fb | 1382 | if (hdr->bLength < 7 + csize) { |
0ba41d91 TI |
1383 | usb_audio_err(state->chip, |
1384 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1385 | unitid); | |
d56268fb CL |
1386 | return -EINVAL; |
1387 | } | |
23caaf19 DM |
1388 | } else { |
1389 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
1390 | csize = 4; | |
e8d0fee7 | 1391 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 | 1392 | bmaControls = ftr->bmaControls; |
d56268fb | 1393 | if (hdr->bLength < 6 + csize) { |
0ba41d91 TI |
1394 | usb_audio_err(state->chip, |
1395 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1396 | unitid); | |
d56268fb CL |
1397 | return -EINVAL; |
1398 | } | |
1da177e4 LT |
1399 | } |
1400 | ||
1401 | /* parse the source unit */ | |
23caaf19 | 1402 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1403 | return err; |
1404 | ||
1405 | /* determine the input source type and name */ | |
4d7b86c9 DM |
1406 | err = check_input_term(state, hdr->bSourceID, &iterm); |
1407 | if (err < 0) | |
1408 | return err; | |
1da177e4 | 1409 | |
23caaf19 | 1410 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1411 | /* master configuration quirks */ |
1412 | switch (state->chip->usb_id) { | |
1413 | case USB_ID(0x08bb, 0x2702): | |
0ba41d91 TI |
1414 | usb_audio_info(state->chip, |
1415 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
0c3cee57 | 1416 | /* disable non-functional volume control */ |
65f25da4 | 1417 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 | 1418 | break; |
c1051439 | 1419 | case USB_ID(0x1130, 0xf211): |
0ba41d91 TI |
1420 | usb_audio_info(state->chip, |
1421 | "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); | |
c1051439 DH |
1422 | /* disable non-functional volume control */ |
1423 | channels = 0; | |
1424 | break; | |
1425 | ||
0c3cee57 | 1426 | } |
1da177e4 | 1427 | if (channels > 0) |
23caaf19 | 1428 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1429 | else |
1430 | first_ch_bits = 0; | |
23caaf19 DM |
1431 | |
1432 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1433 | /* check all control types */ | |
1434 | for (i = 0; i < 10; i++) { | |
1435 | unsigned int ch_bits = 0; | |
1436 | for (j = 0; j < channels; j++) { | |
6bc170e4 DM |
1437 | unsigned int mask; |
1438 | ||
1439 | mask = snd_usb_combine_bytes(bmaControls + | |
1440 | csize * (j+1), csize); | |
23caaf19 DM |
1441 | if (mask & (1 << i)) |
1442 | ch_bits |= (1 << j); | |
1443 | } | |
1444 | /* audio class v1 controls are never read-only */ | |
6bc170e4 DM |
1445 | |
1446 | /* | |
1447 | * The first channel must be set | |
1448 | * (for ease of programming). | |
1449 | */ | |
1450 | if (ch_bits & 1) | |
1451 | build_feature_ctl(state, _ftr, ch_bits, i, | |
1452 | &iterm, unitid, 0); | |
23caaf19 | 1453 | if (master_bits & (1 << i)) |
6bc170e4 DM |
1454 | build_feature_ctl(state, _ftr, 0, i, &iterm, |
1455 | unitid, 0); | |
23caaf19 DM |
1456 | } |
1457 | } else { /* UAC_VERSION_2 */ | |
d09c06c6 | 1458 | for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { |
23caaf19 DM |
1459 | unsigned int ch_bits = 0; |
1460 | unsigned int ch_read_only = 0; | |
1461 | ||
1462 | for (j = 0; j < channels; j++) { | |
6bc170e4 DM |
1463 | unsigned int mask; |
1464 | ||
1465 | mask = snd_usb_combine_bytes(bmaControls + | |
1466 | csize * (j+1), csize); | |
dcbe7bcf | 1467 | if (uac2_control_is_readable(mask, i)) { |
23caaf19 | 1468 | ch_bits |= (1 << j); |
dcbe7bcf | 1469 | if (!uac2_control_is_writeable(mask, i)) |
23caaf19 DM |
1470 | ch_read_only |= (1 << j); |
1471 | } | |
1472 | } | |
1473 | ||
6bc170e4 DM |
1474 | /* |
1475 | * NOTE: build_feature_ctl() will mark the control | |
1476 | * read-only if all channels are marked read-only in | |
1477 | * the descriptors. Otherwise, the control will be | |
1478 | * reported as writeable, but the driver will not | |
1479 | * actually issue a write command for read-only | |
1480 | * channels. | |
1481 | */ | |
1482 | ||
1483 | /* | |
1484 | * The first channel must be set | |
1485 | * (for ease of programming). | |
1486 | */ | |
1487 | if (ch_bits & 1) | |
1488 | build_feature_ctl(state, _ftr, ch_bits, i, | |
1489 | &iterm, unitid, ch_read_only); | |
dcbe7bcf | 1490 | if (uac2_control_is_readable(master_bits, i)) |
23caaf19 | 1491 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
dcbe7bcf | 1492 | !uac2_control_is_writeable(master_bits, i)); |
1da177e4 | 1493 | } |
1da177e4 LT |
1494 | } |
1495 | ||
1496 | return 0; | |
1497 | } | |
1498 | ||
1da177e4 LT |
1499 | /* |
1500 | * Mixer Unit | |
1501 | */ | |
1502 | ||
1503 | /* | |
1504 | * build a mixer unit control | |
1505 | * | |
1506 | * the callbacks are identical with feature unit. | |
1507 | * input channel number (zero based) is given in control field instead. | |
1508 | */ | |
99fc8645 DM |
1509 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1510 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1511 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1512 | struct usb_audio_term *iterm) |
1da177e4 | 1513 | { |
86e07d34 | 1514 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1515 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1516 | unsigned int i, len; |
86e07d34 | 1517 | struct snd_kcontrol *kctl; |
c3a3e040 | 1518 | const struct usbmix_name_map *map; |
1da177e4 | 1519 | |
c3a3e040 JK |
1520 | map = find_map(state, unitid, 0); |
1521 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1522 | return; |
1523 | ||
561b220a | 1524 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
6bc170e4 | 1525 | if (!cval) |
1da177e4 LT |
1526 | return; |
1527 | ||
84957a8a | 1528 | cval->mixer = state->mixer; |
1da177e4 LT |
1529 | cval->id = unitid; |
1530 | cval->control = in_ch + 1; /* based on 1 */ | |
1531 | cval->val_type = USB_MIXER_S16; | |
1532 | for (i = 0; i < num_outs; i++) { | |
6bc170e4 DM |
1533 | __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); |
1534 | ||
1535 | if (check_matrix_bitmap(c, in_ch, i, num_outs)) { | |
1da177e4 LT |
1536 | cval->cmask |= (1 << i); |
1537 | cval->channels++; | |
1538 | } | |
1539 | } | |
1540 | ||
1541 | /* get min/max values */ | |
1542 | get_min_max(cval, 0); | |
1543 | ||
1544 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
6bc170e4 | 1545 | if (!kctl) { |
0ba41d91 | 1546 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1547 | kfree(cval); |
1548 | return; | |
1549 | } | |
1550 | kctl->private_free = usb_mixer_elem_free; | |
1551 | ||
c3a3e040 | 1552 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
6bc170e4 DM |
1553 | if (!len) |
1554 | len = get_term_name(state, iterm, kctl->id.name, | |
1555 | sizeof(kctl->id.name), 0); | |
1556 | if (!len) | |
1da177e4 | 1557 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); |
08d1e635 | 1558 | append_ctl_name(kctl, " Volume"); |
1da177e4 | 1559 | |
0ba41d91 | 1560 | usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", |
1da177e4 | 1561 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); |
ef9d5970 | 1562 | snd_usb_mixer_add_control(state->mixer, kctl); |
1da177e4 LT |
1563 | } |
1564 | ||
1da177e4 LT |
1565 | /* |
1566 | * parse a mixer unit | |
1567 | */ | |
6bc170e4 DM |
1568 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, |
1569 | void *raw_desc) | |
1da177e4 | 1570 | { |
99fc8645 | 1571 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1572 | struct usb_audio_term iterm; |
1da177e4 LT |
1573 | int input_pins, num_ins, num_outs; |
1574 | int pin, ich, err; | |
1575 | ||
6bc170e4 DM |
1576 | if (desc->bLength < 11 || !(input_pins = desc->bNrInPins) || |
1577 | !(num_outs = uac_mixer_unit_bNrChannels(desc))) { | |
1578 | usb_audio_err(state->chip, | |
1579 | "invalid MIXER UNIT descriptor %d\n", | |
1580 | unitid); | |
1da177e4 LT |
1581 | return -EINVAL; |
1582 | } | |
1583 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
99fc8645 | 1584 | if (desc->bLength <= 10 + input_pins) { |
6bc170e4 DM |
1585 | usb_audio_dbg(state->chip, "MU %d has no bmControls field\n", |
1586 | unitid); | |
1da177e4 LT |
1587 | return 0; |
1588 | } | |
1589 | ||
1590 | num_ins = 0; | |
1591 | ich = 0; | |
1592 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1593 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 | 1594 | if (err < 0) |
284a8dd6 | 1595 | continue; |
99fc8645 | 1596 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1597 | if (err < 0) |
1598 | return err; | |
1599 | num_ins += iterm.channels; | |
6bc170e4 | 1600 | for (; ich < num_ins; ich++) { |
1da177e4 LT |
1601 | int och, ich_has_controls = 0; |
1602 | ||
6bc170e4 DM |
1603 | for (och = 0; och < num_outs; och++) { |
1604 | __u8 *c = uac_mixer_unit_bmControls(desc, | |
1605 | state->mixer->protocol); | |
1606 | ||
1607 | if (check_matrix_bitmap(c, ich, och, num_outs)) { | |
1da177e4 LT |
1608 | ich_has_controls = 1; |
1609 | break; | |
1610 | } | |
1611 | } | |
1612 | if (ich_has_controls) | |
1613 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1614 | unitid, &iterm); | |
1615 | } | |
1616 | } | |
1617 | return 0; | |
1618 | } | |
1619 | ||
1da177e4 LT |
1620 | /* |
1621 | * Processing Unit / Extension Unit | |
1622 | */ | |
1623 | ||
1624 | /* get callback for processing/extension unit */ | |
6bc170e4 DM |
1625 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, |
1626 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1627 | { |
86e07d34 | 1628 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1629 | int err, val; |
1630 | ||
1631 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
84957a8a | 1632 | if (err < 0 && cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1633 | ucontrol->value.integer.value[0] = cval->min; |
1634 | return 0; | |
1635 | } | |
1636 | if (err < 0) | |
1637 | return err; | |
1638 | val = get_relative_value(cval, val); | |
1639 | ucontrol->value.integer.value[0] = val; | |
1640 | return 0; | |
1641 | } | |
1642 | ||
1643 | /* put callback for processing/extension unit */ | |
6bc170e4 DM |
1644 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, |
1645 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1646 | { |
86e07d34 | 1647 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1648 | int val, oval, err; |
1649 | ||
1650 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
1651 | if (err < 0) { | |
84957a8a | 1652 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1653 | return 0; |
1654 | return err; | |
1655 | } | |
1656 | val = ucontrol->value.integer.value[0]; | |
1657 | val = get_abs_value(cval, val); | |
1658 | if (val != oval) { | |
1659 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1660 | return 1; | |
1661 | } | |
1662 | return 0; | |
1663 | } | |
1664 | ||
1665 | /* alsa control interface for processing/extension unit */ | |
86e07d34 | 1666 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1667 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1668 | .name = "", /* will be filled later */ | |
1669 | .info = mixer_ctl_feature_info, | |
1670 | .get = mixer_ctl_procunit_get, | |
1671 | .put = mixer_ctl_procunit_put, | |
1672 | }; | |
1673 | ||
1da177e4 LT |
1674 | /* |
1675 | * predefined data for processing units | |
1676 | */ | |
1677 | struct procunit_value_info { | |
1678 | int control; | |
1679 | char *suffix; | |
1680 | int val_type; | |
1681 | int min_value; | |
1682 | }; | |
1683 | ||
1684 | struct procunit_info { | |
1685 | int type; | |
1686 | char *name; | |
1687 | struct procunit_value_info *values; | |
1688 | }; | |
1689 | ||
1690 | static struct procunit_value_info updown_proc_info[] = { | |
65f25da4 DM |
1691 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1692 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1693 | { 0 } |
1694 | }; | |
1695 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
1696 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1697 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1698 | { 0 } |
1699 | }; | |
1700 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
1701 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1702 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
1703 | { 0 } |
1704 | }; | |
1705 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
1706 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1707 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1708 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1709 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
1710 | { 0 } |
1711 | }; | |
1712 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
1713 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1714 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1715 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1716 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
1717 | { 0 } |
1718 | }; | |
1719 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
1720 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1721 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
1722 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
1723 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1724 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
1725 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
1726 | { 0 } |
1727 | }; | |
1728 | ||
1729 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
1730 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
1731 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1732 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
1733 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
1734 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
1735 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
1736 | { 0 }, |
1737 | }; | |
7d2b451e SK |
1738 | /* |
1739 | * predefined data for extension units | |
1740 | */ | |
1741 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1742 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1743 | { 0 } | |
7d2b451e SK |
1744 | }; |
1745 | static struct procunit_value_info clock_source_xu_info[] = { | |
1746 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1747 | { 0 } | |
1748 | }; | |
1749 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1750 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1751 | { 0 } | |
1752 | }; | |
1753 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1754 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1755 | { 0 } | |
1756 | }; | |
1757 | static struct procunit_info extunits[] = { | |
1758 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1759 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1760 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1761 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1762 | { 0 } | |
1763 | }; | |
6bc170e4 | 1764 | |
1da177e4 LT |
1765 | /* |
1766 | * build a processing/extension unit | |
1767 | */ | |
6bc170e4 DM |
1768 | static int build_audio_procunit(struct mixer_build *state, int unitid, |
1769 | void *raw_desc, struct procunit_info *list, | |
1770 | char *name) | |
1da177e4 | 1771 | { |
99fc8645 DM |
1772 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1773 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1774 | struct usb_mixer_elem_info *cval; |
1775 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1776 | int i, err, nameid, type, len; |
1777 | struct procunit_info *info; | |
1778 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1779 | const struct usbmix_name_map *map; |
1da177e4 LT |
1780 | static struct procunit_value_info default_value_info[] = { |
1781 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1782 | { 0 } | |
1783 | }; | |
1784 | static struct procunit_info default_info = { | |
1785 | 0, NULL, default_value_info | |
1786 | }; | |
1787 | ||
23caaf19 DM |
1788 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1789 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
0ba41d91 | 1790 | usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); |
1da177e4 LT |
1791 | return -EINVAL; |
1792 | } | |
1793 | ||
1794 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1795 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1796 | return err; |
1797 | } | |
1798 | ||
99fc8645 | 1799 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1800 | for (info = list; info && info->type; info++) |
1801 | if (info->type == type) | |
1802 | break; | |
6bc170e4 | 1803 | if (!info || !info->type) |
1da177e4 LT |
1804 | info = &default_info; |
1805 | ||
1806 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1807 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 | 1808 | |
6bc170e4 | 1809 | if (!(controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) |
1da177e4 | 1810 | continue; |
c3a3e040 JK |
1811 | map = find_map(state, unitid, valinfo->control); |
1812 | if (check_ignored_ctl(map)) | |
1da177e4 | 1813 | continue; |
561b220a | 1814 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 1815 | if (!cval) |
1da177e4 | 1816 | return -ENOMEM; |
84957a8a | 1817 | cval->mixer = state->mixer; |
1da177e4 LT |
1818 | cval->id = unitid; |
1819 | cval->control = valinfo->control; | |
1820 | cval->val_type = valinfo->val_type; | |
1821 | cval->channels = 1; | |
1822 | ||
1823 | /* get min/max values */ | |
65f25da4 | 1824 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
23caaf19 | 1825 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1826 | /* FIXME: hard-coded */ |
1827 | cval->min = 1; | |
99fc8645 | 1828 | cval->max = control_spec[0]; |
1da177e4 LT |
1829 | cval->res = 1; |
1830 | cval->initialized = 1; | |
7d2b451e SK |
1831 | } else { |
1832 | if (type == USB_XU_CLOCK_RATE) { | |
6bc170e4 DM |
1833 | /* |
1834 | * E-Mu USB 0404/0202/TrackerPre/0204 | |
7d2b451e SK |
1835 | * samplerate control quirk |
1836 | */ | |
1837 | cval->min = 0; | |
1838 | cval->max = 5; | |
1839 | cval->res = 1; | |
1840 | cval->initialized = 1; | |
1841 | } else | |
1842 | get_min_max(cval, valinfo->min_value); | |
1843 | } | |
1da177e4 LT |
1844 | |
1845 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
6bc170e4 | 1846 | if (!kctl) { |
1da177e4 LT |
1847 | kfree(cval); |
1848 | return -ENOMEM; | |
1849 | } | |
1850 | kctl->private_free = usb_mixer_elem_free; | |
1851 | ||
6bc170e4 | 1852 | if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { |
c3a3e040 | 1853 | /* nothing */ ; |
6bc170e4 | 1854 | } else if (info->name) { |
1da177e4 | 1855 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); |
6bc170e4 | 1856 | } else { |
23caaf19 | 1857 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1858 | len = 0; |
1859 | if (nameid) | |
6bc170e4 DM |
1860 | len = snd_usb_copy_string_desc(state, nameid, |
1861 | kctl->id.name, | |
1862 | sizeof(kctl->id.name)); | |
1863 | if (!len) | |
1da177e4 LT |
1864 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); |
1865 | } | |
08d1e635 TI |
1866 | append_ctl_name(kctl, " "); |
1867 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 | 1868 | |
0ba41d91 | 1869 | usb_audio_dbg(state->chip, |
6bc170e4 DM |
1870 | "[%d] PU [%s] ch = %d, val = %d/%d\n", |
1871 | cval->id, kctl->id.name, cval->channels, | |
1872 | cval->min, cval->max); | |
1873 | ||
1874 | err = snd_usb_mixer_add_control(state->mixer, kctl); | |
1875 | if (err < 0) | |
1da177e4 LT |
1876 | return err; |
1877 | } | |
1878 | return 0; | |
1879 | } | |
1880 | ||
6bc170e4 DM |
1881 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, |
1882 | void *raw_desc) | |
1da177e4 | 1883 | { |
6bc170e4 DM |
1884 | return build_audio_procunit(state, unitid, raw_desc, |
1885 | procunits, "Processing Unit"); | |
1da177e4 LT |
1886 | } |
1887 | ||
6bc170e4 DM |
1888 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, |
1889 | void *raw_desc) | |
1da177e4 | 1890 | { |
6bc170e4 DM |
1891 | /* |
1892 | * Note that we parse extension units with processing unit descriptors. | |
1893 | * That's ok as the layout is the same. | |
1894 | */ | |
1895 | return build_audio_procunit(state, unitid, raw_desc, | |
1896 | extunits, "Extension Unit"); | |
1da177e4 LT |
1897 | } |
1898 | ||
1da177e4 LT |
1899 | /* |
1900 | * Selector Unit | |
1901 | */ | |
1902 | ||
6bc170e4 DM |
1903 | /* |
1904 | * info callback for selector unit | |
1da177e4 LT |
1905 | * use an enumerator type for routing |
1906 | */ | |
6bc170e4 DM |
1907 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, |
1908 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 1909 | { |
86e07d34 | 1910 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
2a1803a7 | 1911 | const char **itemlist = (const char **)kcontrol->private_value; |
1da177e4 | 1912 | |
5e246b85 TI |
1913 | if (snd_BUG_ON(!itemlist)) |
1914 | return -EINVAL; | |
2a1803a7 | 1915 | return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); |
1da177e4 LT |
1916 | } |
1917 | ||
1918 | /* get callback for selector unit */ | |
6bc170e4 DM |
1919 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, |
1920 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1921 | { |
86e07d34 | 1922 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1923 | int val, err; |
1924 | ||
09414207 | 1925 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 1926 | if (err < 0) { |
84957a8a | 1927 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1928 | ucontrol->value.enumerated.item[0] = 0; |
1929 | return 0; | |
1930 | } | |
1931 | return err; | |
1932 | } | |
1933 | val = get_relative_value(cval, val); | |
1934 | ucontrol->value.enumerated.item[0] = val; | |
1935 | return 0; | |
1936 | } | |
1937 | ||
1938 | /* put callback for selector unit */ | |
6bc170e4 DM |
1939 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, |
1940 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1941 | { |
86e07d34 | 1942 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1943 | int val, oval, err; |
1944 | ||
09414207 | 1945 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
1da177e4 | 1946 | if (err < 0) { |
84957a8a | 1947 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1948 | return 0; |
1949 | return err; | |
1950 | } | |
1951 | val = ucontrol->value.enumerated.item[0]; | |
1952 | val = get_abs_value(cval, val); | |
1953 | if (val != oval) { | |
09414207 | 1954 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
1955 | return 1; |
1956 | } | |
1957 | return 0; | |
1958 | } | |
1959 | ||
1960 | /* alsa control interface for selector unit */ | |
86e07d34 | 1961 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
1962 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1963 | .name = "", /* will be filled later */ | |
1964 | .info = mixer_ctl_selector_info, | |
1965 | .get = mixer_ctl_selector_get, | |
1966 | .put = mixer_ctl_selector_put, | |
1967 | }; | |
1968 | ||
6bc170e4 DM |
1969 | /* |
1970 | * private free callback. | |
1da177e4 LT |
1971 | * free both private_data and private_value |
1972 | */ | |
86e07d34 | 1973 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
1974 | { |
1975 | int i, num_ins = 0; | |
1976 | ||
1977 | if (kctl->private_data) { | |
86e07d34 | 1978 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
1979 | num_ins = cval->max; |
1980 | kfree(cval); | |
1981 | kctl->private_data = NULL; | |
1982 | } | |
1983 | if (kctl->private_value) { | |
1984 | char **itemlist = (char **)kctl->private_value; | |
1985 | for (i = 0; i < num_ins; i++) | |
1986 | kfree(itemlist[i]); | |
1987 | kfree(itemlist); | |
1988 | kctl->private_value = 0; | |
1989 | } | |
1990 | } | |
1991 | ||
1992 | /* | |
1993 | * parse a selector unit | |
1994 | */ | |
6bc170e4 DM |
1995 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, |
1996 | void *raw_desc) | |
1da177e4 | 1997 | { |
99fc8645 | 1998 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1999 | unsigned int i, nameid, len; |
2000 | int err; | |
86e07d34 TI |
2001 | struct usb_mixer_elem_info *cval; |
2002 | struct snd_kcontrol *kctl; | |
c3a3e040 | 2003 | const struct usbmix_name_map *map; |
1da177e4 LT |
2004 | char **namelist; |
2005 | ||
99fc8645 | 2006 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
0ba41d91 TI |
2007 | usb_audio_err(state->chip, |
2008 | "invalid SELECTOR UNIT descriptor %d\n", unitid); | |
1da177e4 LT |
2009 | return -EINVAL; |
2010 | } | |
2011 | ||
99fc8645 DM |
2012 | for (i = 0; i < desc->bNrInPins; i++) { |
2013 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
2014 | return err; |
2015 | } | |
2016 | ||
99fc8645 | 2017 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
2018 | return 0; |
2019 | ||
c3a3e040 JK |
2020 | map = find_map(state, unitid, 0); |
2021 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
2022 | return 0; |
2023 | ||
561b220a | 2024 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 2025 | if (!cval) |
1da177e4 | 2026 | return -ENOMEM; |
84957a8a | 2027 | cval->mixer = state->mixer; |
1da177e4 LT |
2028 | cval->id = unitid; |
2029 | cval->val_type = USB_MIXER_U8; | |
2030 | cval->channels = 1; | |
2031 | cval->min = 1; | |
99fc8645 | 2032 | cval->max = desc->bNrInPins; |
1da177e4 LT |
2033 | cval->res = 1; |
2034 | cval->initialized = 1; | |
2035 | ||
09414207 DM |
2036 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
2037 | cval->control = UAC2_CX_CLOCK_SELECTOR; | |
2038 | else | |
2039 | cval->control = 0; | |
2040 | ||
99fc8645 | 2041 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
6bc170e4 | 2042 | if (!namelist) { |
1da177e4 LT |
2043 | kfree(cval); |
2044 | return -ENOMEM; | |
2045 | } | |
2046 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 2047 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 2048 | struct usb_audio_term iterm; |
1da177e4 LT |
2049 | len = 0; |
2050 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
6bc170e4 | 2051 | if (!namelist[i]) { |
7fbe3ca5 | 2052 | while (i--) |
1da177e4 LT |
2053 | kfree(namelist[i]); |
2054 | kfree(namelist); | |
2055 | kfree(cval); | |
2056 | return -ENOMEM; | |
2057 | } | |
8e062ec7 CL |
2058 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
2059 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 2060 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
2061 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
2062 | if (! len) | |
af831eef | 2063 | sprintf(namelist[i], "Input %u", i); |
1da177e4 LT |
2064 | } |
2065 | ||
2066 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
2067 | if (! kctl) { | |
0ba41d91 | 2068 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
878b4789 | 2069 | kfree(namelist); |
1da177e4 LT |
2070 | kfree(cval); |
2071 | return -ENOMEM; | |
2072 | } | |
2073 | kctl->private_value = (unsigned long)namelist; | |
2074 | kctl->private_free = usb_mixer_selector_elem_free; | |
2075 | ||
99fc8645 | 2076 | nameid = uac_selector_unit_iSelector(desc); |
c3a3e040 | 2077 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
2078 | if (len) |
2079 | ; | |
2080 | else if (nameid) | |
6bc170e4 DM |
2081 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, |
2082 | sizeof(kctl->id.name)); | |
1da177e4 LT |
2083 | else { |
2084 | len = get_term_name(state, &state->oterm, | |
2085 | kctl->id.name, sizeof(kctl->id.name), 0); | |
6bc170e4 | 2086 | if (!len) |
1da177e4 LT |
2087 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); |
2088 | ||
09414207 DM |
2089 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
2090 | append_ctl_name(kctl, " Clock Source"); | |
2091 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 2092 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 2093 | else |
08d1e635 | 2094 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
2095 | } |
2096 | ||
0ba41d91 | 2097 | usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", |
99fc8645 | 2098 | cval->id, kctl->id.name, desc->bNrInPins); |
ef9d5970 | 2099 | if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) |
1da177e4 LT |
2100 | return err; |
2101 | ||
2102 | return 0; | |
2103 | } | |
2104 | ||
1da177e4 LT |
2105 | /* |
2106 | * parse an audio unit recursively | |
2107 | */ | |
2108 | ||
86e07d34 | 2109 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
2110 | { |
2111 | unsigned char *p1; | |
2112 | ||
2113 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
2114 | return 0; /* the unit already visited */ | |
2115 | ||
2116 | p1 = find_audio_control_unit(state, unitid); | |
2117 | if (!p1) { | |
0ba41d91 | 2118 | usb_audio_err(state->chip, "unit %d not found!\n", unitid); |
1da177e4 LT |
2119 | return -EINVAL; |
2120 | } | |
2121 | ||
2122 | switch (p1[2]) { | |
de48c7bc | 2123 | case UAC_INPUT_TERMINAL: |
09414207 | 2124 | case UAC2_CLOCK_SOURCE: |
1da177e4 | 2125 | return 0; /* NOP */ |
de48c7bc | 2126 | case UAC_MIXER_UNIT: |
1da177e4 | 2127 | return parse_audio_mixer_unit(state, unitid, p1); |
de48c7bc | 2128 | case UAC_SELECTOR_UNIT: |
09414207 | 2129 | case UAC2_CLOCK_SELECTOR: |
1da177e4 | 2130 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 2131 | case UAC_FEATURE_UNIT: |
1da177e4 | 2132 | return parse_audio_feature_unit(state, unitid, p1); |
69da9bcb | 2133 | case UAC1_PROCESSING_UNIT: |
23caaf19 DM |
2134 | /* UAC2_EFFECT_UNIT has the same value */ |
2135 | if (state->mixer->protocol == UAC_VERSION_1) | |
2136 | return parse_audio_processing_unit(state, unitid, p1); | |
2137 | else | |
2138 | return 0; /* FIXME - effect units not implemented yet */ | |
69da9bcb | 2139 | case UAC1_EXTENSION_UNIT: |
23caaf19 DM |
2140 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
2141 | if (state->mixer->protocol == UAC_VERSION_1) | |
2142 | return parse_audio_extension_unit(state, unitid, p1); | |
2143 | else /* UAC_VERSION_2 */ | |
2144 | return parse_audio_processing_unit(state, unitid, p1); | |
61ac5130 TH |
2145 | case UAC2_EXTENSION_UNIT_V2: |
2146 | return parse_audio_extension_unit(state, unitid, p1); | |
1da177e4 | 2147 | default: |
0ba41d91 TI |
2148 | usb_audio_err(state->chip, |
2149 | "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1da177e4 LT |
2150 | return -EINVAL; |
2151 | } | |
2152 | } | |
2153 | ||
84957a8a CL |
2154 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
2155 | { | |
6639b6c2 CL |
2156 | kfree(mixer->id_elems); |
2157 | if (mixer->urb) { | |
2158 | kfree(mixer->urb->transfer_buffer); | |
2159 | usb_free_urb(mixer->urb); | |
2160 | } | |
68df9de1 | 2161 | usb_free_urb(mixer->rc_urb); |
b259b10c | 2162 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
2163 | kfree(mixer); |
2164 | } | |
2165 | ||
86e07d34 | 2166 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
2167 | { |
2168 | struct usb_mixer_interface *mixer = device->device_data; | |
2169 | snd_usb_mixer_free(mixer); | |
2170 | return 0; | |
2171 | } | |
2172 | ||
1da177e4 LT |
2173 | /* |
2174 | * create mixer controls | |
2175 | * | |
de48c7bc | 2176 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 2177 | */ |
84957a8a | 2178 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 2179 | { |
86e07d34 | 2180 | struct mixer_build state; |
1da177e4 LT |
2181 | int err; |
2182 | const struct usbmix_ctl_map *map; | |
23caaf19 | 2183 | void *p; |
1da177e4 LT |
2184 | |
2185 | memset(&state, 0, sizeof(state)); | |
84957a8a CL |
2186 | state.chip = mixer->chip; |
2187 | state.mixer = mixer; | |
1faa5d07 DM |
2188 | state.buffer = mixer->hostif->extra; |
2189 | state.buflen = mixer->hostif->extralen; | |
1da177e4 LT |
2190 | |
2191 | /* check the mapping table */ | |
27d10f56 CL |
2192 | for (map = usbmix_ctl_maps; map->id; map++) { |
2193 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 2194 | state.map = map->map; |
8e062ec7 | 2195 | state.selector_map = map->selector_map; |
84957a8a | 2196 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
2197 | break; |
2198 | } | |
2199 | } | |
1da177e4 | 2200 | |
23caaf19 | 2201 | p = NULL; |
6bc170e4 DM |
2202 | while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, |
2203 | mixer->hostif->extralen, | |
1faa5d07 | 2204 | p, UAC_OUTPUT_TERMINAL)) != NULL) { |
23caaf19 | 2205 | if (mixer->protocol == UAC_VERSION_1) { |
69da9bcb | 2206 | struct uac1_output_terminal_descriptor *desc = p; |
23caaf19 DM |
2207 | |
2208 | if (desc->bLength < sizeof(*desc)) | |
2209 | continue; /* invalid descriptor? */ | |
6bc170e4 DM |
2210 | /* mark terminal ID as visited */ |
2211 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
2212 | state.oterm.id = desc->bTerminalID; |
2213 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2214 | state.oterm.name = desc->iTerminal; | |
2215 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2216 | if (err < 0 && err != -EINVAL) |
23caaf19 DM |
2217 | return err; |
2218 | } else { /* UAC_VERSION_2 */ | |
2219 | struct uac2_output_terminal_descriptor *desc = p; | |
2220 | ||
2221 | if (desc->bLength < sizeof(*desc)) | |
2222 | continue; /* invalid descriptor? */ | |
6bc170e4 DM |
2223 | /* mark terminal ID as visited */ |
2224 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
2225 | state.oterm.id = desc->bTerminalID; |
2226 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2227 | state.oterm.name = desc->iTerminal; | |
2228 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2229 | if (err < 0 && err != -EINVAL) |
23caaf19 | 2230 | return err; |
09414207 | 2231 | |
6bc170e4 DM |
2232 | /* |
2233 | * For UAC2, use the same approach to also add the | |
2234 | * clock selectors | |
2235 | */ | |
09414207 | 2236 | err = parse_audio_unit(&state, desc->bCSourceID); |
83ea5d18 | 2237 | if (err < 0 && err != -EINVAL) |
09414207 | 2238 | return err; |
23caaf19 | 2239 | } |
1da177e4 | 2240 | } |
23caaf19 | 2241 | |
1da177e4 LT |
2242 | return 0; |
2243 | } | |
84957a8a | 2244 | |
7b1eda22 | 2245 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 2246 | { |
86e07d34 | 2247 | struct usb_mixer_elem_info *info; |
6639b6c2 CL |
2248 | |
2249 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) | |
2250 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2251 | info->elem_id); | |
2252 | } | |
2253 | ||
ebfdeea3 JK |
2254 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
2255 | int unitid, | |
2256 | struct usb_mixer_elem_info *cval) | |
2257 | { | |
2258 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", | |
2259 | "S8", "U8", "S16", "U16"}; | |
2260 | snd_iprintf(buffer, " Unit: %i\n", unitid); | |
2261 | if (cval->elem_id) | |
2262 | snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", | |
2263 | cval->elem_id->name, cval->elem_id->index); | |
2264 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " | |
2265 | "channels=%i, type=\"%s\"\n", cval->id, | |
2266 | cval->control, cval->cmask, cval->channels, | |
2267 | val_types[cval->val_type]); | |
2268 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
2269 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
2270 | } | |
2271 | ||
2272 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
2273 | struct snd_info_buffer *buffer) | |
2274 | { | |
2275 | struct snd_usb_audio *chip = entry->private_data; | |
2276 | struct usb_mixer_interface *mixer; | |
2277 | struct usb_mixer_elem_info *cval; | |
2278 | int unitid; | |
2279 | ||
2280 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
2281 | snd_iprintf(buffer, | |
7affdc17 | 2282 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
3d8d4dcf | 2283 | chip->usb_id, snd_usb_ctrl_intf(chip), |
7affdc17 | 2284 | mixer->ignore_ctl_error); |
ebfdeea3 JK |
2285 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
2286 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
2287 | for (cval = mixer->id_elems[unitid]; cval; | |
2288 | cval = cval->next_id_elem) | |
2289 | snd_usb_mixer_dump_cval(buffer, unitid, cval); | |
2290 | } | |
2291 | } | |
2292 | } | |
2293 | ||
e213e9cf DM |
2294 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
2295 | int attribute, int value, int index) | |
2296 | { | |
2297 | struct usb_mixer_elem_info *info; | |
2298 | __u8 unitid = (index >> 8) & 0xff; | |
2299 | __u8 control = (value >> 8) & 0xff; | |
2300 | __u8 channel = value & 0xff; | |
2301 | ||
2302 | if (channel >= MAX_CHANNELS) { | |
0ba41d91 TI |
2303 | usb_audio_dbg(mixer->chip, |
2304 | "%s(): bogus channel number %d\n", | |
2305 | __func__, channel); | |
e213e9cf DM |
2306 | return; |
2307 | } | |
2308 | ||
2309 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { | |
2310 | if (info->control != control) | |
2311 | continue; | |
2312 | ||
2313 | switch (attribute) { | |
2314 | case UAC2_CS_CUR: | |
2315 | /* invalidate cache, so the value is read from the device */ | |
2316 | if (channel) | |
2317 | info->cached &= ~(1 << channel); | |
2318 | else /* master channel */ | |
2319 | info->cached = 0; | |
2320 | ||
2321 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2322 | info->elem_id); | |
2323 | break; | |
2324 | ||
2325 | case UAC2_CS_RANGE: | |
2326 | /* TODO */ | |
2327 | break; | |
2328 | ||
2329 | case UAC2_CS_MEM: | |
2330 | /* TODO */ | |
2331 | break; | |
2332 | ||
2333 | default: | |
0ba41d91 TI |
2334 | usb_audio_dbg(mixer->chip, |
2335 | "unknown attribute %d in interrupt\n", | |
2336 | attribute); | |
e213e9cf DM |
2337 | break; |
2338 | } /* switch */ | |
2339 | } | |
2340 | } | |
2341 | ||
2342 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2343 | { |
2344 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf | 2345 | int len = urb->actual_length; |
edf7de31 | 2346 | int ustatus = urb->status; |
e213e9cf | 2347 | |
edf7de31 | 2348 | if (ustatus != 0) |
e213e9cf | 2349 | goto requeue; |
6639b6c2 | 2350 | |
e213e9cf DM |
2351 | if (mixer->protocol == UAC_VERSION_1) { |
2352 | struct uac1_status_word *status; | |
6639b6c2 | 2353 | |
e213e9cf DM |
2354 | for (status = urb->transfer_buffer; |
2355 | len >= sizeof(*status); | |
2356 | len -= sizeof(*status), status++) { | |
0ba41d91 | 2357 | dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", |
e213e9cf DM |
2358 | status->bStatusType, |
2359 | status->bOriginator); | |
2360 | ||
6639b6c2 | 2361 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2362 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2363 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2364 | continue; |
e213e9cf DM |
2365 | |
2366 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2367 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2368 | else |
e213e9cf DM |
2369 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2370 | } | |
2371 | } else { /* UAC_VERSION_2 */ | |
2372 | struct uac2_interrupt_data_msg *msg; | |
2373 | ||
2374 | for (msg = urb->transfer_buffer; | |
2375 | len >= sizeof(*msg); | |
2376 | len -= sizeof(*msg), msg++) { | |
2377 | /* drop vendor specific and endpoint requests */ | |
2378 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2379 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2380 | continue; | |
2381 | ||
2382 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2383 | le16_to_cpu(msg->wValue), | |
2384 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2385 | } |
2386 | } | |
e213e9cf DM |
2387 | |
2388 | requeue: | |
6bc170e4 DM |
2389 | if (ustatus != -ENOENT && |
2390 | ustatus != -ECONNRESET && | |
2391 | ustatus != -ESHUTDOWN) { | |
6639b6c2 CL |
2392 | urb->dev = mixer->chip->dev; |
2393 | usb_submit_urb(urb, GFP_ATOMIC); | |
2394 | } | |
2395 | } | |
2396 | ||
2397 | /* create the handler for the optional status interrupt endpoint */ | |
2398 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2399 | { | |
6639b6c2 CL |
2400 | struct usb_endpoint_descriptor *ep; |
2401 | void *transfer_buffer; | |
2402 | int buffer_length; | |
2403 | unsigned int epnum; | |
2404 | ||
6639b6c2 | 2405 | /* we need one interrupt input endpoint */ |
1faa5d07 | 2406 | if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) |
6639b6c2 | 2407 | return 0; |
1faa5d07 | 2408 | ep = get_endpoint(mixer->hostif, 0); |
913ae5a2 | 2409 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2410 | return 0; |
2411 | ||
42a6e66f | 2412 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2413 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2414 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2415 | if (!transfer_buffer) | |
2416 | return -ENOMEM; | |
2417 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2418 | if (!mixer->urb) { | |
2419 | kfree(transfer_buffer); | |
2420 | return -ENOMEM; | |
2421 | } | |
2422 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2423 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2424 | transfer_buffer, buffer_length, | |
e213e9cf | 2425 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2426 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2427 | return 0; | |
2428 | } | |
2429 | ||
7a9b8063 TI |
2430 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2431 | int ignore_error) | |
84957a8a | 2432 | { |
86e07d34 | 2433 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2434 | .dev_free = snd_usb_mixer_dev_free |
2435 | }; | |
2436 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2437 | struct snd_info_entry *entry; |
23caaf19 | 2438 | int err; |
84957a8a CL |
2439 | |
2440 | strcpy(chip->card->mixername, "USB Mixer"); | |
2441 | ||
561b220a | 2442 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2443 | if (!mixer) |
2444 | return -ENOMEM; | |
2445 | mixer->chip = chip; | |
7a9b8063 | 2446 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2447 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2448 | GFP_KERNEL); | |
6639b6c2 CL |
2449 | if (!mixer->id_elems) { |
2450 | kfree(mixer); | |
2451 | return -ENOMEM; | |
2452 | } | |
84957a8a | 2453 | |
1faa5d07 DM |
2454 | mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
2455 | switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { | |
a2acad82 CL |
2456 | case UAC_VERSION_1: |
2457 | default: | |
2458 | mixer->protocol = UAC_VERSION_1; | |
2459 | break; | |
2460 | case UAC_VERSION_2: | |
2461 | mixer->protocol = UAC_VERSION_2; | |
2462 | break; | |
2463 | } | |
7b8a043f | 2464 | |
6639b6c2 | 2465 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2466 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2467 | goto _error; | |
84957a8a | 2468 | |
7b1eda22 | 2469 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2470 | |
9cbb2808 | 2471 | err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); |
93446edc CL |
2472 | if (err < 0) |
2473 | goto _error; | |
ebfdeea3 JK |
2474 | |
2475 | if (list_empty(&chip->mixer_list) && | |
2476 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2477 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2478 | ||
84957a8a CL |
2479 | list_add(&mixer->list, &chip->mixer_list); |
2480 | return 0; | |
93446edc CL |
2481 | |
2482 | _error: | |
2483 | snd_usb_mixer_free(mixer); | |
2484 | return err; | |
84957a8a CL |
2485 | } |
2486 | ||
2487 | void snd_usb_mixer_disconnect(struct list_head *p) | |
2488 | { | |
6639b6c2 | 2489 | struct usb_mixer_interface *mixer; |
7b1eda22 | 2490 | |
6639b6c2 | 2491 | mixer = list_entry(p, struct usb_mixer_interface, list); |
68df9de1 MK |
2492 | usb_kill_urb(mixer->urb); |
2493 | usb_kill_urb(mixer->rc_urb); | |
84957a8a | 2494 | } |
400362f1 TI |
2495 | |
2496 | #ifdef CONFIG_PM | |
2497 | /* stop any bus activity of a mixer */ | |
2498 | static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) | |
2499 | { | |
2500 | usb_kill_urb(mixer->urb); | |
2501 | usb_kill_urb(mixer->rc_urb); | |
2502 | } | |
2503 | ||
2504 | static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) | |
2505 | { | |
2506 | int err; | |
2507 | ||
2508 | if (mixer->urb) { | |
2509 | err = usb_submit_urb(mixer->urb, GFP_NOIO); | |
2510 | if (err < 0) | |
2511 | return err; | |
2512 | } | |
2513 | ||
2514 | return 0; | |
2515 | } | |
2516 | ||
2517 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) | |
2518 | { | |
2519 | snd_usb_mixer_inactivate(mixer); | |
2520 | return 0; | |
2521 | } | |
2522 | ||
2523 | static int restore_mixer_value(struct usb_mixer_elem_info *cval) | |
2524 | { | |
2525 | int c, err, idx; | |
2526 | ||
2527 | if (cval->cmask) { | |
2528 | idx = 0; | |
2529 | for (c = 0; c < MAX_CHANNELS; c++) { | |
2530 | if (!(cval->cmask & (1 << c))) | |
2531 | continue; | |
2532 | if (cval->cached & (1 << c)) { | |
2533 | err = set_cur_mix_value(cval, c + 1, idx, | |
2534 | cval->cache_val[idx]); | |
2535 | if (err < 0) | |
2536 | return err; | |
2537 | } | |
2538 | idx++; | |
2539 | } | |
2540 | } else { | |
2541 | /* master */ | |
2542 | if (cval->cached) { | |
2543 | err = set_cur_mix_value(cval, 0, 0, *cval->cache_val); | |
2544 | if (err < 0) | |
2545 | return err; | |
2546 | } | |
2547 | } | |
2548 | ||
2549 | return 0; | |
2550 | } | |
2551 | ||
2552 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) | |
2553 | { | |
2554 | struct usb_mixer_elem_info *cval; | |
2555 | int id, err; | |
2556 | ||
2557 | /* FIXME: any mixer quirks? */ | |
2558 | ||
2559 | if (reset_resume) { | |
2560 | /* restore cached mixer values */ | |
2561 | for (id = 0; id < MAX_ID_ELEMS; id++) { | |
2562 | for (cval = mixer->id_elems[id]; cval; | |
2563 | cval = cval->next_id_elem) { | |
2564 | err = restore_mixer_value(cval); | |
2565 | if (err < 0) | |
2566 | return err; | |
2567 | } | |
2568 | } | |
2569 | } | |
2570 | ||
2571 | return snd_usb_mixer_activate(mixer); | |
2572 | } | |
2573 | #endif |