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 | ||
5aeee342 TI |
139 | /* ignore the error value if ignore_ctl_error flag is set */ |
140 | #define filter_error(cval, err) \ | |
141 | ((cval)->mixer->ignore_ctl_error ? 0 : (err)) | |
142 | ||
c3a3e040 JK |
143 | /* check whether the control should be ignored */ |
144 | static inline int | |
145 | check_ignored_ctl(const struct usbmix_name_map *p) | |
146 | { | |
147 | if (!p || p->name || p->dB) | |
1da177e4 | 148 | return 0; |
c3a3e040 JK |
149 | return 1; |
150 | } | |
151 | ||
152 | /* dB mapping */ | |
153 | static inline void check_mapped_dB(const struct usbmix_name_map *p, | |
154 | struct usb_mixer_elem_info *cval) | |
155 | { | |
156 | if (p && p->dB) { | |
157 | cval->dBmin = p->dB->min; | |
158 | cval->dBmax = p->dB->max; | |
38b65190 | 159 | cval->initialized = 1; |
1da177e4 | 160 | } |
1da177e4 LT |
161 | } |
162 | ||
8e062ec7 | 163 | /* get the mapped selector source name */ |
86e07d34 | 164 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
165 | int index, char *buf, int buflen) |
166 | { | |
167 | const struct usbmix_selector_map *p; | |
168 | ||
6bc170e4 | 169 | if (!state->selector_map) |
8e062ec7 CL |
170 | return 0; |
171 | for (p = state->selector_map; p->id; p++) { | |
172 | if (p->id == unitid && index < p->count) | |
173 | return strlcpy(buf, p->names[index], buflen); | |
174 | } | |
175 | return 0; | |
176 | } | |
177 | ||
1da177e4 LT |
178 | /* |
179 | * find an audio control unit with the given unit id | |
180 | */ | |
6bc170e4 DM |
181 | static void *find_audio_control_unit(struct mixer_build *state, |
182 | unsigned char unit) | |
1da177e4 | 183 | { |
67e1daa0 DM |
184 | /* we just parse the header */ |
185 | struct uac_feature_unit_descriptor *hdr = NULL; | |
186 | ||
187 | while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, | |
188 | USB_DT_CS_INTERFACE)) != NULL) { | |
189 | if (hdr->bLength >= 4 && | |
190 | hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && | |
191 | hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && | |
192 | hdr->bUnitID == unit) | |
193 | return hdr; | |
1da177e4 | 194 | } |
67e1daa0 | 195 | |
1da177e4 LT |
196 | return NULL; |
197 | } | |
198 | ||
1da177e4 LT |
199 | /* |
200 | * copy a string with the given id | |
201 | */ | |
6bc170e4 DM |
202 | static int snd_usb_copy_string_desc(struct mixer_build *state, |
203 | int index, char *buf, int maxlen) | |
1da177e4 LT |
204 | { |
205 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
206 | buf[len] = 0; | |
207 | return len; | |
208 | } | |
209 | ||
210 | /* | |
211 | * convert from the byte/word on usb descriptor to the zero-based integer | |
212 | */ | |
86e07d34 | 213 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
214 | { |
215 | switch (cval->val_type) { | |
216 | case USB_MIXER_BOOLEAN: | |
217 | return !!val; | |
218 | case USB_MIXER_INV_BOOLEAN: | |
219 | return !val; | |
220 | case USB_MIXER_U8: | |
221 | val &= 0xff; | |
222 | break; | |
223 | case USB_MIXER_S8: | |
224 | val &= 0xff; | |
225 | if (val >= 0x80) | |
226 | val -= 0x100; | |
227 | break; | |
228 | case USB_MIXER_U16: | |
229 | val &= 0xffff; | |
230 | break; | |
231 | case USB_MIXER_S16: | |
232 | val &= 0xffff; | |
233 | if (val >= 0x8000) | |
234 | val -= 0x10000; | |
235 | break; | |
236 | } | |
237 | return val; | |
238 | } | |
239 | ||
240 | /* | |
241 | * convert from the zero-based int to the byte/word for usb descriptor | |
242 | */ | |
86e07d34 | 243 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
244 | { |
245 | switch (cval->val_type) { | |
246 | case USB_MIXER_BOOLEAN: | |
247 | return !!val; | |
248 | case USB_MIXER_INV_BOOLEAN: | |
249 | return !val; | |
250 | case USB_MIXER_S8: | |
251 | case USB_MIXER_U8: | |
252 | return val & 0xff; | |
253 | case USB_MIXER_S16: | |
254 | case USB_MIXER_U16: | |
255 | return val & 0xffff; | |
256 | } | |
257 | return 0; /* not reached */ | |
258 | } | |
259 | ||
86e07d34 | 260 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 | 261 | { |
6bc170e4 | 262 | if (!cval->res) |
1da177e4 LT |
263 | cval->res = 1; |
264 | if (val < cval->min) | |
265 | return 0; | |
14790f1c TI |
266 | else if (val >= cval->max) |
267 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
268 | else |
269 | return (val - cval->min) / cval->res; | |
270 | } | |
271 | ||
86e07d34 | 272 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
273 | { |
274 | if (val < 0) | |
275 | return cval->min; | |
6bc170e4 | 276 | if (!cval->res) |
1da177e4 LT |
277 | cval->res = 1; |
278 | val *= cval->res; | |
279 | val += cval->min; | |
280 | if (val > cval->max) | |
281 | return cval->max; | |
282 | return val; | |
283 | } | |
284 | ||
285 | ||
286 | /* | |
287 | * retrieve a mixer value | |
288 | */ | |
289 | ||
6bc170e4 DM |
290 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, |
291 | int validx, int *value_ret) | |
1da177e4 | 292 | { |
3d8d4dcf | 293 | struct snd_usb_audio *chip = cval->mixer->chip; |
1da177e4 LT |
294 | unsigned char buf[2]; |
295 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
296 | int timeout = 10; | |
978520b7 | 297 | int idx = 0, err; |
1da177e4 | 298 | |
88a8516a ON |
299 | err = snd_usb_autoresume(cval->mixer->chip); |
300 | if (err < 0) | |
301 | return -EIO; | |
6bc170e4 | 302 | |
34f3c89f | 303 | down_read(&chip->shutdown_rwsem); |
1da177e4 | 304 | while (timeout-- > 0) { |
978520b7 TI |
305 | if (chip->shutdown) |
306 | break; | |
307 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); | |
3d8d4dcf | 308 | if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, |
1da177e4 | 309 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
978520b7 | 310 | validx, idx, buf, val_len) >= val_len) { |
1da177e4 | 311 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
978520b7 TI |
312 | err = 0; |
313 | goto out; | |
1da177e4 LT |
314 | } |
315 | } | |
0ba41d91 TI |
316 | usb_audio_dbg(chip, |
317 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
318 | request, validx, idx, cval->val_type); | |
978520b7 TI |
319 | err = -EINVAL; |
320 | ||
321 | out: | |
34f3c89f | 322 | up_read(&chip->shutdown_rwsem); |
978520b7 TI |
323 | snd_usb_autosuspend(cval->mixer->chip); |
324 | return err; | |
1da177e4 LT |
325 | } |
326 | ||
6bc170e4 DM |
327 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, |
328 | int validx, int *value_ret) | |
23caaf19 | 329 | { |
3d8d4dcf | 330 | struct snd_usb_audio *chip = cval->mixer->chip; |
6bc170e4 | 331 | unsigned char buf[2 + 3 * sizeof(__u16)]; /* enough space for one range */ |
23caaf19 | 332 | unsigned char *val; |
978520b7 | 333 | int idx = 0, ret, size; |
23caaf19 DM |
334 | __u8 bRequest; |
335 | ||
e8bdb6bb DM |
336 | if (request == UAC_GET_CUR) { |
337 | bRequest = UAC2_CS_CUR; | |
338 | size = sizeof(__u16); | |
339 | } else { | |
340 | bRequest = UAC2_CS_RANGE; | |
341 | size = sizeof(buf); | |
342 | } | |
343 | ||
344 | memset(buf, 0, sizeof(buf)); | |
23caaf19 | 345 | |
88a8516a ON |
346 | ret = snd_usb_autoresume(chip) ? -EIO : 0; |
347 | if (ret) | |
348 | goto error; | |
349 | ||
34f3c89f | 350 | down_read(&chip->shutdown_rwsem); |
6bc170e4 | 351 | if (chip->shutdown) { |
978520b7 | 352 | ret = -ENODEV; |
6bc170e4 | 353 | } else { |
978520b7 TI |
354 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); |
355 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, | |
23caaf19 | 356 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
978520b7 TI |
357 | validx, idx, buf, size); |
358 | } | |
34f3c89f | 359 | up_read(&chip->shutdown_rwsem); |
88a8516a | 360 | snd_usb_autosuspend(chip); |
23caaf19 DM |
361 | |
362 | if (ret < 0) { | |
88a8516a | 363 | error: |
0ba41d91 TI |
364 | usb_audio_err(chip, |
365 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
366 | request, validx, idx, cval->val_type); | |
23caaf19 DM |
367 | return ret; |
368 | } | |
369 | ||
e8bdb6bb DM |
370 | /* FIXME: how should we handle multiple triplets here? */ |
371 | ||
23caaf19 DM |
372 | switch (request) { |
373 | case UAC_GET_CUR: | |
374 | val = buf; | |
375 | break; | |
376 | case UAC_GET_MIN: | |
377 | val = buf + sizeof(__u16); | |
378 | break; | |
379 | case UAC_GET_MAX: | |
380 | val = buf + sizeof(__u16) * 2; | |
381 | break; | |
382 | case UAC_GET_RES: | |
383 | val = buf + sizeof(__u16) * 3; | |
384 | break; | |
385 | default: | |
386 | return -EINVAL; | |
387 | } | |
388 | ||
389 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
6bc170e4 DM |
394 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, |
395 | int validx, int *value_ret) | |
23caaf19 | 396 | { |
9f814105 EZ |
397 | validx += cval->idx_off; |
398 | ||
23caaf19 DM |
399 | return (cval->mixer->protocol == UAC_VERSION_1) ? |
400 | get_ctl_value_v1(cval, request, validx, value_ret) : | |
401 | get_ctl_value_v2(cval, request, validx, value_ret); | |
402 | } | |
403 | ||
6bc170e4 DM |
404 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, |
405 | int validx, int *value) | |
1da177e4 | 406 | { |
de48c7bc | 407 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
408 | } |
409 | ||
410 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
411 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
412 | int channel, int *value) | |
1da177e4 | 413 | { |
6bc170e4 DM |
414 | return get_ctl_value(cval, UAC_GET_CUR, |
415 | (cval->control << 8) | channel, | |
416 | value); | |
1da177e4 LT |
417 | } |
418 | ||
eef90451 | 419 | int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, |
641b4879 TI |
420 | int channel, int index, int *value) |
421 | { | |
422 | int err; | |
423 | ||
424 | if (cval->cached & (1 << channel)) { | |
425 | *value = cval->cache_val[index]; | |
426 | return 0; | |
427 | } | |
428 | err = get_cur_mix_raw(cval, channel, value); | |
429 | if (err < 0) { | |
430 | if (!cval->mixer->ignore_ctl_error) | |
0ba41d91 TI |
431 | usb_audio_dbg(cval->mixer->chip, |
432 | "cannot get current value for control %d ch %d: err = %d\n", | |
6bc170e4 | 433 | cval->control, channel, err); |
641b4879 TI |
434 | return err; |
435 | } | |
436 | cval->cached |= 1 << channel; | |
437 | cval->cache_val[index] = *value; | |
438 | return 0; | |
439 | } | |
440 | ||
1da177e4 LT |
441 | /* |
442 | * set a mixer value | |
443 | */ | |
444 | ||
7b1eda22 DM |
445 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
446 | int request, int validx, int value_set) | |
1da177e4 | 447 | { |
3d8d4dcf | 448 | struct snd_usb_audio *chip = cval->mixer->chip; |
1da177e4 | 449 | unsigned char buf[2]; |
978520b7 | 450 | int idx = 0, val_len, err, timeout = 10; |
23caaf19 | 451 | |
9f814105 EZ |
452 | validx += cval->idx_off; |
453 | ||
23caaf19 DM |
454 | if (cval->mixer->protocol == UAC_VERSION_1) { |
455 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
456 | } else { /* UAC_VERSION_2 */ | |
457 | /* audio class v2 controls are always 2 bytes in size */ | |
458 | val_len = sizeof(__u16); | |
459 | ||
460 | /* FIXME */ | |
461 | if (request != UAC_SET_CUR) { | |
0ba41d91 | 462 | usb_audio_dbg(chip, "RANGE setting not yet supported\n"); |
23caaf19 DM |
463 | return -EINVAL; |
464 | } | |
465 | ||
466 | request = UAC2_CS_CUR; | |
467 | } | |
1da177e4 LT |
468 | |
469 | value_set = convert_bytes_value(cval, value_set); | |
470 | buf[0] = value_set & 0xff; | |
471 | buf[1] = (value_set >> 8) & 0xff; | |
88a8516a ON |
472 | err = snd_usb_autoresume(chip); |
473 | if (err < 0) | |
474 | return -EIO; | |
34f3c89f | 475 | down_read(&chip->shutdown_rwsem); |
978520b7 TI |
476 | while (timeout-- > 0) { |
477 | if (chip->shutdown) | |
478 | break; | |
479 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); | |
3d8d4dcf DM |
480 | if (snd_usb_ctl_msg(chip->dev, |
481 | usb_sndctrlpipe(chip->dev, 0), request, | |
1da177e4 | 482 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, |
978520b7 TI |
483 | validx, idx, buf, val_len) >= 0) { |
484 | err = 0; | |
485 | goto out; | |
88a8516a | 486 | } |
978520b7 | 487 | } |
0ba41d91 | 488 | usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
6bc170e4 | 489 | request, validx, idx, cval->val_type, buf[0], buf[1]); |
978520b7 TI |
490 | err = -EINVAL; |
491 | ||
492 | out: | |
34f3c89f | 493 | up_read(&chip->shutdown_rwsem); |
978520b7 TI |
494 | snd_usb_autosuspend(chip); |
495 | return err; | |
1da177e4 LT |
496 | } |
497 | ||
6bc170e4 DM |
498 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, |
499 | int validx, int value) | |
1da177e4 | 500 | { |
7b1eda22 | 501 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
502 | } |
503 | ||
eef90451 | 504 | int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
641b4879 | 505 | int index, int value) |
1da177e4 | 506 | { |
641b4879 | 507 | int err; |
a6a33259 DM |
508 | unsigned int read_only = (channel == 0) ? |
509 | cval->master_readonly : | |
510 | cval->ch_readonly & (1 << (channel - 1)); | |
511 | ||
512 | if (read_only) { | |
0ba41d91 TI |
513 | usb_audio_dbg(cval->mixer->chip, |
514 | "%s(): channel %d of control %d is read_only\n", | |
a6a33259 DM |
515 | __func__, channel, cval->control); |
516 | return 0; | |
517 | } | |
518 | ||
6bc170e4 DM |
519 | err = snd_usb_mixer_set_ctl_value(cval, |
520 | UAC_SET_CUR, (cval->control << 8) | channel, | |
521 | value); | |
641b4879 TI |
522 | if (err < 0) |
523 | return err; | |
524 | cval->cached |= 1 << channel; | |
525 | cval->cache_val[index] = value; | |
526 | return 0; | |
1da177e4 LT |
527 | } |
528 | ||
7bc5ba7e TI |
529 | /* |
530 | * TLV callback for mixer volume controls | |
531 | */ | |
285de9c0 | 532 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
7bc5ba7e TI |
533 | unsigned int size, unsigned int __user *_tlv) |
534 | { | |
535 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 536 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
537 | |
538 | if (size < sizeof(scale)) | |
539 | return -ENOMEM; | |
c3a3e040 JK |
540 | scale[2] = cval->dBmin; |
541 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
542 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
543 | return -EFAULT; | |
544 | return 0; | |
545 | } | |
1da177e4 LT |
546 | |
547 | /* | |
548 | * parser routines begin here... | |
549 | */ | |
550 | ||
86e07d34 | 551 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
552 | |
553 | ||
554 | /* | |
555 | * check if the input/output channel routing is enabled on the given bitmap. | |
556 | * used for mixer unit parser | |
557 | */ | |
6bc170e4 DM |
558 | static int check_matrix_bitmap(unsigned char *bmap, |
559 | int ich, int och, int num_outs) | |
1da177e4 LT |
560 | { |
561 | int idx = ich * num_outs + och; | |
562 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
563 | } | |
564 | ||
1da177e4 LT |
565 | /* |
566 | * add an alsa control element | |
567 | * search and increment the index until an empty slot is found. | |
568 | * | |
569 | * if failed, give up and free the control instance. | |
570 | */ | |
571 | ||
ef9d5970 DM |
572 | int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, |
573 | struct snd_kcontrol *kctl) | |
1da177e4 | 574 | { |
86e07d34 | 575 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 576 | int err; |
84957a8a | 577 | |
ef9d5970 | 578 | while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) |
1da177e4 | 579 | kctl->id.index++; |
ef9d5970 | 580 | if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { |
6bc170e4 DM |
581 | usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", |
582 | err); | |
6639b6c2 | 583 | return err; |
1da177e4 | 584 | } |
6639b6c2 | 585 | cval->elem_id = &kctl->id; |
ef9d5970 DM |
586 | cval->next_id_elem = mixer->id_elems[cval->id]; |
587 | mixer->id_elems[cval->id] = cval; | |
6639b6c2 | 588 | return 0; |
1da177e4 LT |
589 | } |
590 | ||
1da177e4 LT |
591 | /* |
592 | * get a terminal name string | |
593 | */ | |
594 | ||
595 | static struct iterm_name_combo { | |
596 | int type; | |
597 | char *name; | |
598 | } iterm_names[] = { | |
599 | { 0x0300, "Output" }, | |
600 | { 0x0301, "Speaker" }, | |
601 | { 0x0302, "Headphone" }, | |
602 | { 0x0303, "HMD Audio" }, | |
603 | { 0x0304, "Desktop Speaker" }, | |
604 | { 0x0305, "Room Speaker" }, | |
605 | { 0x0306, "Com Speaker" }, | |
606 | { 0x0307, "LFE" }, | |
607 | { 0x0600, "External In" }, | |
608 | { 0x0601, "Analog In" }, | |
609 | { 0x0602, "Digital In" }, | |
610 | { 0x0603, "Line" }, | |
611 | { 0x0604, "Legacy In" }, | |
612 | { 0x0605, "IEC958 In" }, | |
613 | { 0x0606, "1394 DA Stream" }, | |
614 | { 0x0607, "1394 DV Stream" }, | |
615 | { 0x0700, "Embedded" }, | |
616 | { 0x0701, "Noise Source" }, | |
617 | { 0x0702, "Equalization Noise" }, | |
618 | { 0x0703, "CD" }, | |
619 | { 0x0704, "DAT" }, | |
620 | { 0x0705, "DCC" }, | |
621 | { 0x0706, "MiniDisk" }, | |
622 | { 0x0707, "Analog Tape" }, | |
623 | { 0x0708, "Phonograph" }, | |
624 | { 0x0709, "VCR Audio" }, | |
625 | { 0x070a, "Video Disk Audio" }, | |
626 | { 0x070b, "DVD Audio" }, | |
627 | { 0x070c, "TV Tuner Audio" }, | |
628 | { 0x070d, "Satellite Rec Audio" }, | |
629 | { 0x070e, "Cable Tuner Audio" }, | |
630 | { 0x070f, "DSS Audio" }, | |
631 | { 0x0710, "Radio Receiver" }, | |
632 | { 0x0711, "Radio Transmitter" }, | |
633 | { 0x0712, "Multi-Track Recorder" }, | |
634 | { 0x0713, "Synthesizer" }, | |
635 | { 0 }, | |
636 | }; | |
637 | ||
86e07d34 | 638 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
639 | unsigned char *name, int maxlen, int term_only) |
640 | { | |
641 | struct iterm_name_combo *names; | |
642 | ||
643 | if (iterm->name) | |
6bc170e4 DM |
644 | return snd_usb_copy_string_desc(state, iterm->name, |
645 | name, maxlen); | |
1da177e4 LT |
646 | |
647 | /* virtual type - not a real terminal */ | |
648 | if (iterm->type >> 16) { | |
649 | if (term_only) | |
650 | return 0; | |
651 | switch (iterm->type >> 16) { | |
de48c7bc | 652 | case UAC_SELECTOR_UNIT: |
6bc170e4 DM |
653 | strcpy(name, "Selector"); |
654 | return 8; | |
69da9bcb | 655 | case UAC1_PROCESSING_UNIT: |
6bc170e4 DM |
656 | strcpy(name, "Process Unit"); |
657 | return 12; | |
69da9bcb | 658 | case UAC1_EXTENSION_UNIT: |
6bc170e4 DM |
659 | strcpy(name, "Ext Unit"); |
660 | return 8; | |
de48c7bc | 661 | case UAC_MIXER_UNIT: |
6bc170e4 DM |
662 | strcpy(name, "Mixer"); |
663 | return 5; | |
1da177e4 LT |
664 | default: |
665 | return sprintf(name, "Unit %d", iterm->id); | |
666 | } | |
667 | } | |
668 | ||
669 | switch (iterm->type & 0xff00) { | |
670 | case 0x0100: | |
6bc170e4 DM |
671 | strcpy(name, "PCM"); |
672 | return 3; | |
1da177e4 | 673 | case 0x0200: |
6bc170e4 DM |
674 | strcpy(name, "Mic"); |
675 | return 3; | |
1da177e4 | 676 | case 0x0400: |
6bc170e4 DM |
677 | strcpy(name, "Headset"); |
678 | return 7; | |
1da177e4 | 679 | case 0x0500: |
6bc170e4 DM |
680 | strcpy(name, "Phone"); |
681 | return 5; | |
1da177e4 LT |
682 | } |
683 | ||
6bc170e4 | 684 | for (names = iterm_names; names->type; names++) { |
1da177e4 LT |
685 | if (names->type == iterm->type) { |
686 | strcpy(name, names->name); | |
687 | return strlen(names->name); | |
688 | } | |
6bc170e4 DM |
689 | } |
690 | ||
1da177e4 LT |
691 | return 0; |
692 | } | |
693 | ||
1da177e4 LT |
694 | /* |
695 | * parse the source unit recursively until it reaches to a terminal | |
696 | * or a branched unit. | |
697 | */ | |
6bc170e4 DM |
698 | static int check_input_term(struct mixer_build *state, int id, |
699 | struct usb_audio_term *term) | |
1da177e4 | 700 | { |
09414207 | 701 | int err; |
23caaf19 | 702 | void *p1; |
1da177e4 LT |
703 | |
704 | memset(term, 0, sizeof(*term)); | |
705 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 706 | unsigned char *hdr = p1; |
1da177e4 | 707 | term->id = id; |
23caaf19 | 708 | switch (hdr[2]) { |
de48c7bc | 709 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
710 | if (state->mixer->protocol == UAC_VERSION_1) { |
711 | struct uac_input_terminal_descriptor *d = p1; | |
712 | term->type = le16_to_cpu(d->wTerminalType); | |
713 | term->channels = d->bNrChannels; | |
714 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
715 | term->name = d->iTerminal; | |
716 | } else { /* UAC_VERSION_2 */ | |
717 | struct uac2_input_terminal_descriptor *d = p1; | |
718 | term->type = le16_to_cpu(d->wTerminalType); | |
719 | term->channels = d->bNrChannels; | |
720 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
721 | term->name = d->iTerminal; | |
09414207 DM |
722 | |
723 | /* call recursively to get the clock selectors */ | |
724 | err = check_input_term(state, d->bCSourceID, term); | |
725 | if (err < 0) | |
726 | return err; | |
23caaf19 | 727 | } |
1da177e4 | 728 | return 0; |
23caaf19 DM |
729 | case UAC_FEATURE_UNIT: { |
730 | /* the header is the same for v1 and v2 */ | |
731 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 732 | id = d->bSourceID; |
1da177e4 | 733 | break; /* continue to parse */ |
23caaf19 DM |
734 | } |
735 | case UAC_MIXER_UNIT: { | |
736 | struct uac_mixer_unit_descriptor *d = p1; | |
737 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
738 | term->channels = uac_mixer_unit_bNrChannels(d); | |
739 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
740 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 741 | return 0; |
23caaf19 | 742 | } |
09414207 DM |
743 | case UAC_SELECTOR_UNIT: |
744 | case UAC2_CLOCK_SELECTOR: { | |
23caaf19 | 745 | struct uac_selector_unit_descriptor *d = p1; |
1da177e4 | 746 | /* call recursively to retrieve the channel info */ |
4d7b86c9 DM |
747 | err = check_input_term(state, d->baSourceID[0], term); |
748 | if (err < 0) | |
749 | return err; | |
23caaf19 | 750 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 751 | term->id = id; |
23caaf19 | 752 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 753 | return 0; |
23caaf19 | 754 | } |
69da9bcb | 755 | case UAC1_PROCESSING_UNIT: |
5dae5fd2 EZ |
756 | case UAC1_EXTENSION_UNIT: |
757 | /* UAC2_PROCESSING_UNIT_V2 */ | |
61ac5130 TH |
758 | /* UAC2_EFFECT_UNIT */ |
759 | case UAC2_EXTENSION_UNIT_V2: { | |
23caaf19 | 760 | struct uac_processing_unit_descriptor *d = p1; |
5dae5fd2 EZ |
761 | |
762 | if (state->mixer->protocol == UAC_VERSION_2 && | |
763 | hdr[2] == UAC2_EFFECT_UNIT) { | |
764 | /* UAC2/UAC1 unit IDs overlap here in an | |
765 | * uncompatible way. Ignore this unit for now. | |
766 | */ | |
767 | return 0; | |
768 | } | |
769 | ||
23caaf19 DM |
770 | if (d->bNrInPins) { |
771 | id = d->baSourceID[0]; | |
1da177e4 LT |
772 | break; /* continue to parse */ |
773 | } | |
23caaf19 DM |
774 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
775 | term->channels = uac_processing_unit_bNrChannels(d); | |
776 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
777 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 778 | return 0; |
23caaf19 | 779 | } |
09414207 DM |
780 | case UAC2_CLOCK_SOURCE: { |
781 | struct uac_clock_source_descriptor *d = p1; | |
782 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
783 | term->id = id; | |
784 | term->name = d->iClockSource; | |
785 | return 0; | |
786 | } | |
1da177e4 LT |
787 | default: |
788 | return -ENODEV; | |
789 | } | |
790 | } | |
791 | return -ENODEV; | |
792 | } | |
793 | ||
1da177e4 LT |
794 | /* |
795 | * Feature Unit | |
796 | */ | |
797 | ||
798 | /* feature unit control information */ | |
799 | struct usb_feature_control_info { | |
800 | const char *name; | |
801 | unsigned int type; /* control type (mute, volume, etc.) */ | |
802 | }; | |
803 | ||
804 | static struct usb_feature_control_info audio_feature_info[] = { | |
2e0281d1 DM |
805 | { "Mute", USB_MIXER_INV_BOOLEAN }, |
806 | { "Volume", USB_MIXER_S16 }, | |
1da177e4 LT |
807 | { "Tone Control - Bass", USB_MIXER_S8 }, |
808 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
809 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
810 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
2e0281d1 DM |
811 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, |
812 | { "Delay Control", USB_MIXER_U16 }, | |
813 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
814 | { "Loudness", USB_MIXER_BOOLEAN }, | |
815 | /* UAC2 specific */ | |
816 | { "Input Gain Control", USB_MIXER_U16 }, | |
817 | { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, | |
818 | { "Phase Inverter Control", USB_MIXER_BOOLEAN }, | |
1da177e4 LT |
819 | }; |
820 | ||
1da177e4 | 821 | /* private_free callback */ |
eef90451 | 822 | void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 823 | { |
4d572776 JJ |
824 | kfree(kctl->private_data); |
825 | kctl->private_data = NULL; | |
1da177e4 LT |
826 | } |
827 | ||
1da177e4 LT |
828 | /* |
829 | * interface to ALSA control for feature/mixer units | |
830 | */ | |
831 | ||
dcaaf9f2 TI |
832 | /* volume control quirks */ |
833 | static void volume_control_quirks(struct usb_mixer_elem_info *cval, | |
834 | struct snd_kcontrol *kctl) | |
835 | { | |
0ba41d91 TI |
836 | struct snd_usb_audio *chip = cval->mixer->chip; |
837 | switch (chip->usb_id) { | |
d50ed624 | 838 | case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ |
e9a25e04 | 839 | case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ |
d50ed624 EZ |
840 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { |
841 | cval->min = 0x0000; | |
842 | cval->max = 0xffff; | |
843 | cval->res = 0x00e6; | |
844 | break; | |
845 | } | |
846 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
847 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
848 | cval->min = 0x00; | |
849 | cval->max = 0xff; | |
850 | break; | |
851 | } | |
852 | if (strstr(kctl->id.name, "Effect Return") != NULL) { | |
853 | cval->min = 0xb706; | |
854 | cval->max = 0xff7b; | |
855 | cval->res = 0x0073; | |
856 | break; | |
857 | } | |
858 | if ((strstr(kctl->id.name, "Playback Volume") != NULL) || | |
859 | (strstr(kctl->id.name, "Effect Send") != NULL)) { | |
860 | cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ | |
861 | cval->max = 0xfcfe; | |
862 | cval->res = 0x0073; | |
863 | } | |
864 | break; | |
865 | ||
d34bf148 FH |
866 | case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ |
867 | case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ | |
868 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { | |
0ba41d91 TI |
869 | usb_audio_info(chip, |
870 | "set quirk for FTU Effect Duration\n"); | |
d34bf148 FH |
871 | cval->min = 0x0000; |
872 | cval->max = 0x7f00; | |
873 | cval->res = 0x0100; | |
874 | break; | |
875 | } | |
876 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
877 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
0ba41d91 TI |
878 | usb_audio_info(chip, |
879 | "set quirks for FTU Effect Feedback/Volume\n"); | |
d34bf148 FH |
880 | cval->min = 0x00; |
881 | cval->max = 0x7f; | |
882 | break; | |
883 | } | |
884 | break; | |
885 | ||
dcaaf9f2 TI |
886 | case USB_ID(0x0471, 0x0101): |
887 | case USB_ID(0x0471, 0x0104): | |
888 | case USB_ID(0x0471, 0x0105): | |
889 | case USB_ID(0x0672, 0x1041): | |
890 | /* quirk for UDA1321/N101. | |
891 | * note that detection between firmware 2.1.1.7 (N101) | |
892 | * and later 2.1.1.21 is not very clear from datasheets. | |
893 | * I hope that the min value is -15360 for newer firmware --jk | |
894 | */ | |
895 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && | |
896 | cval->min == -15616) { | |
0ba41d91 | 897 | usb_audio_info(chip, |
dcaaf9f2 TI |
898 | "set volume quirk for UDA1321/N101 chip\n"); |
899 | cval->max = -256; | |
900 | } | |
901 | break; | |
902 | ||
903 | case USB_ID(0x046d, 0x09a4): | |
904 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 905 | usb_audio_info(chip, |
dcaaf9f2 TI |
906 | "set volume quirk for QuickCam E3500\n"); |
907 | cval->min = 6080; | |
908 | cval->max = 8768; | |
909 | cval->res = 192; | |
910 | } | |
911 | break; | |
912 | ||
e805ca8b | 913 | case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ |
dcaaf9f2 TI |
914 | case USB_ID(0x046d, 0x0808): |
915 | case USB_ID(0x046d, 0x0809): | |
36691e1b | 916 | case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ |
55c0008b | 917 | case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ |
11e7064f | 918 | case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ |
140d37de | 919 | case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ |
dcaaf9f2 TI |
920 | case USB_ID(0x046d, 0x0991): |
921 | /* Most audio usb devices lie about volume resolution. | |
922 | * Most Logitech webcams have res = 384. | |
923 | * Proboly there is some logitech magic behind this number --fishor | |
924 | */ | |
925 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 926 | usb_audio_info(chip, |
dcaaf9f2 TI |
927 | "set resolution quirk: cval->res = 384\n"); |
928 | cval->res = 384; | |
929 | } | |
930 | break; | |
dcaaf9f2 TI |
931 | } |
932 | } | |
933 | ||
1da177e4 LT |
934 | /* |
935 | * retrieve the minimum and maximum values for the specified control | |
936 | */ | |
dcaaf9f2 TI |
937 | static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, |
938 | int default_min, struct snd_kcontrol *kctl) | |
1da177e4 LT |
939 | { |
940 | /* for failsafe */ | |
941 | cval->min = default_min; | |
942 | cval->max = cval->min + 1; | |
943 | cval->res = 1; | |
c3a3e040 | 944 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
945 | |
946 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
947 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
948 | cval->initialized = 1; | |
949 | } else { | |
950 | int minchn = 0; | |
951 | if (cval->cmask) { | |
952 | int i; | |
953 | for (i = 0; i < MAX_CHANNELS; i++) | |
954 | if (cval->cmask & (1 << i)) { | |
955 | minchn = i + 1; | |
956 | break; | |
957 | } | |
958 | } | |
de48c7bc DM |
959 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
960 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
0ba41d91 TI |
961 | usb_audio_err(cval->mixer->chip, |
962 | "%d:%d: cannot get min/max values for control %d (id %d)\n", | |
6bc170e4 DM |
963 | cval->id, snd_usb_ctrl_intf(cval->mixer->chip), |
964 | cval->control, cval->id); | |
1da177e4 LT |
965 | return -EINVAL; |
966 | } | |
6bc170e4 DM |
967 | if (get_ctl_value(cval, UAC_GET_RES, |
968 | (cval->control << 8) | minchn, | |
969 | &cval->res) < 0) { | |
1da177e4 LT |
970 | cval->res = 1; |
971 | } else { | |
972 | int last_valid_res = cval->res; | |
973 | ||
974 | while (cval->res > 1) { | |
7b1eda22 | 975 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
6bc170e4 DM |
976 | (cval->control << 8) | minchn, |
977 | cval->res / 2) < 0) | |
1da177e4 LT |
978 | break; |
979 | cval->res /= 2; | |
980 | } | |
6bc170e4 DM |
981 | if (get_ctl_value(cval, UAC_GET_RES, |
982 | (cval->control << 8) | minchn, &cval->res) < 0) | |
1da177e4 LT |
983 | cval->res = last_valid_res; |
984 | } | |
985 | if (cval->res == 0) | |
986 | cval->res = 1; | |
14790f1c TI |
987 | |
988 | /* Additional checks for the proper resolution | |
989 | * | |
990 | * Some devices report smaller resolutions than actually | |
991 | * reacting. They don't return errors but simply clip | |
992 | * to the lower aligned value. | |
993 | */ | |
994 | if (cval->min + cval->res < cval->max) { | |
995 | int last_valid_res = cval->res; | |
996 | int saved, test, check; | |
641b4879 | 997 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
998 | for (;;) { |
999 | test = saved; | |
1000 | if (test < cval->max) | |
1001 | test += cval->res; | |
1002 | else | |
1003 | test -= cval->res; | |
1004 | if (test < cval->min || test > cval->max || | |
eef90451 | 1005 | snd_usb_set_cur_mix_value(cval, minchn, 0, test) || |
641b4879 | 1006 | get_cur_mix_raw(cval, minchn, &check)) { |
14790f1c TI |
1007 | cval->res = last_valid_res; |
1008 | break; | |
1009 | } | |
1010 | if (test == check) | |
1011 | break; | |
1012 | cval->res *= 2; | |
1013 | } | |
eef90451 | 1014 | snd_usb_set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
1015 | } |
1016 | ||
1da177e4 LT |
1017 | cval->initialized = 1; |
1018 | } | |
c3a3e040 | 1019 | |
dcaaf9f2 TI |
1020 | if (kctl) |
1021 | volume_control_quirks(cval, kctl); | |
1022 | ||
c3a3e040 JK |
1023 | /* USB descriptions contain the dB scale in 1/256 dB unit |
1024 | * while ALSA TLV contains in 1/100 dB unit | |
1025 | */ | |
1026 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
1027 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
1028 | if (cval->dBmin > cval->dBmax) { | |
1029 | /* something is wrong; assume it's either from/to 0dB */ | |
1030 | if (cval->dBmin < 0) | |
1031 | cval->dBmax = 0; | |
1032 | else if (cval->dBmin > 0) | |
1033 | cval->dBmin = 0; | |
1034 | if (cval->dBmin > cval->dBmax) { | |
1035 | /* totally crap, return an error */ | |
1036 | return -EINVAL; | |
1037 | } | |
1038 | } | |
1039 | ||
1da177e4 LT |
1040 | return 0; |
1041 | } | |
1042 | ||
dcaaf9f2 | 1043 | #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) |
1da177e4 LT |
1044 | |
1045 | /* get a feature/mixer unit info */ | |
6bc170e4 DM |
1046 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, |
1047 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 1048 | { |
86e07d34 | 1049 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1050 | |
1051 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1052 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
1053 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1054 | else | |
1055 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1056 | uinfo->count = cval->channels; | |
1057 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1058 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
1059 | uinfo->value.integer.min = 0; | |
1060 | uinfo->value.integer.max = 1; | |
1061 | } else { | |
9fcd0ab1 | 1062 | if (!cval->initialized) { |
dcaaf9f2 | 1063 | get_min_max_with_quirks(cval, 0, kcontrol); |
9fcd0ab1 TI |
1064 | if (cval->initialized && cval->dBmin >= cval->dBmax) { |
1065 | kcontrol->vd[0].access &= | |
1066 | ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1067 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); | |
1068 | snd_ctl_notify(cval->mixer->chip->card, | |
1069 | SNDRV_CTL_EVENT_MASK_INFO, | |
1070 | &kcontrol->id); | |
1071 | } | |
1072 | } | |
1da177e4 | 1073 | uinfo->value.integer.min = 0; |
14790f1c TI |
1074 | uinfo->value.integer.max = |
1075 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
1076 | } |
1077 | return 0; | |
1078 | } | |
1079 | ||
1080 | /* get the current value from feature/mixer unit */ | |
6bc170e4 DM |
1081 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, |
1082 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1083 | { |
86e07d34 | 1084 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1085 | int c, cnt, val, err; |
1086 | ||
641b4879 | 1087 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
1088 | if (cval->cmask) { |
1089 | cnt = 0; | |
1090 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1091 | if (!(cval->cmask & (1 << c))) |
1092 | continue; | |
eef90451 | 1093 | err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val); |
641b4879 | 1094 | if (err < 0) |
5aeee342 | 1095 | return filter_error(cval, err); |
641b4879 TI |
1096 | val = get_relative_value(cval, val); |
1097 | ucontrol->value.integer.value[cnt] = val; | |
1098 | cnt++; | |
1da177e4 | 1099 | } |
641b4879 | 1100 | return 0; |
1da177e4 LT |
1101 | } else { |
1102 | /* master channel */ | |
eef90451 | 1103 | err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); |
641b4879 | 1104 | if (err < 0) |
5aeee342 | 1105 | return filter_error(cval, err); |
1da177e4 LT |
1106 | val = get_relative_value(cval, val); |
1107 | ucontrol->value.integer.value[0] = val; | |
1108 | } | |
1109 | return 0; | |
1110 | } | |
1111 | ||
1112 | /* put the current value to feature/mixer unit */ | |
6bc170e4 DM |
1113 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, |
1114 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1115 | { |
86e07d34 | 1116 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1117 | int c, cnt, val, oval, err; |
1118 | int changed = 0; | |
1119 | ||
1120 | if (cval->cmask) { | |
1121 | cnt = 0; | |
1122 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1123 | if (!(cval->cmask & (1 << c))) |
1124 | continue; | |
eef90451 | 1125 | err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval); |
641b4879 | 1126 | if (err < 0) |
5aeee342 | 1127 | return filter_error(cval, err); |
641b4879 TI |
1128 | val = ucontrol->value.integer.value[cnt]; |
1129 | val = get_abs_value(cval, val); | |
1130 | if (oval != val) { | |
eef90451 | 1131 | snd_usb_set_cur_mix_value(cval, c + 1, cnt, val); |
641b4879 | 1132 | changed = 1; |
1da177e4 | 1133 | } |
641b4879 | 1134 | cnt++; |
1da177e4 LT |
1135 | } |
1136 | } else { | |
1137 | /* master channel */ | |
eef90451 | 1138 | err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 1139 | if (err < 0) |
5aeee342 | 1140 | return filter_error(cval, err); |
1da177e4 LT |
1141 | val = ucontrol->value.integer.value[0]; |
1142 | val = get_abs_value(cval, val); | |
1143 | if (val != oval) { | |
eef90451 | 1144 | snd_usb_set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
1145 | changed = 1; |
1146 | } | |
1147 | } | |
1148 | return changed; | |
1149 | } | |
1150 | ||
86e07d34 | 1151 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
1152 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1153 | .name = "", /* will be filled later manually */ | |
1154 | .info = mixer_ctl_feature_info, | |
1155 | .get = mixer_ctl_feature_get, | |
1156 | .put = mixer_ctl_feature_put, | |
1157 | }; | |
1158 | ||
23caaf19 DM |
1159 | /* the read-only variant */ |
1160 | static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { | |
1161 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1162 | .name = "", /* will be filled later manually */ | |
1163 | .info = mixer_ctl_feature_info, | |
1164 | .get = mixer_ctl_feature_get, | |
1165 | .put = NULL, | |
1166 | }; | |
1167 | ||
6bc170e4 DM |
1168 | /* |
1169 | * This symbol is exported in order to allow the mixer quirks to | |
1170 | * hook up to the standard feature unit control mechanism | |
1171 | */ | |
9e38658f | 1172 | struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; |
1da177e4 LT |
1173 | |
1174 | /* | |
1175 | * build a feature control | |
1176 | */ | |
08d1e635 TI |
1177 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
1178 | { | |
1179 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
1180 | } | |
1181 | ||
6bc170e4 DM |
1182 | /* |
1183 | * A lot of headsets/headphones have a "Speaker" mixer. Make sure we | |
1184 | * rename it to "Headphone". We determine if something is a headphone | |
1185 | * similar to how udev determines form factor. | |
1186 | */ | |
9b4ef977 DH |
1187 | static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, |
1188 | struct snd_card *card) | |
1189 | { | |
1190 | const char *names_to_check[] = { | |
1191 | "Headset", "headset", "Headphone", "headphone", NULL}; | |
1192 | const char **s; | |
e0f17c75 | 1193 | bool found = false; |
9b4ef977 DH |
1194 | |
1195 | if (strcmp("Speaker", kctl->id.name)) | |
1196 | return; | |
1197 | ||
1198 | for (s = names_to_check; *s; s++) | |
1199 | if (strstr(card->shortname, *s)) { | |
e0f17c75 | 1200 | found = true; |
9b4ef977 DH |
1201 | break; |
1202 | } | |
1203 | ||
1204 | if (!found) | |
1205 | return; | |
1206 | ||
1207 | strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); | |
1208 | } | |
1209 | ||
99fc8645 | 1210 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 1211 | unsigned int ctl_mask, int control, |
23caaf19 | 1212 | struct usb_audio_term *iterm, int unitid, |
a6a33259 | 1213 | int readonly_mask) |
1da177e4 | 1214 | { |
99fc8645 | 1215 | struct uac_feature_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1216 | unsigned int len = 0; |
1217 | int mapped_name = 0; | |
99fc8645 | 1218 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
1219 | struct snd_kcontrol *kctl; |
1220 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 1221 | const struct usbmix_name_map *map; |
80acefff | 1222 | unsigned int range; |
1da177e4 LT |
1223 | |
1224 | control++; /* change from zero-based to 1-based value */ | |
1225 | ||
65f25da4 | 1226 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
1227 | /* FIXME: not supported yet */ |
1228 | return; | |
1229 | } | |
1230 | ||
c3a3e040 JK |
1231 | map = find_map(state, unitid, control); |
1232 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1233 | return; |
1234 | ||
561b220a | 1235 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 1236 | if (!cval) |
1da177e4 | 1237 | return; |
84957a8a | 1238 | cval->mixer = state->mixer; |
1da177e4 LT |
1239 | cval->id = unitid; |
1240 | cval->control = control; | |
1241 | cval->cmask = ctl_mask; | |
1242 | cval->val_type = audio_feature_info[control-1].type; | |
a6a33259 | 1243 | if (ctl_mask == 0) { |
1da177e4 | 1244 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
1245 | cval->master_readonly = readonly_mask; |
1246 | } else { | |
1da177e4 LT |
1247 | int i, c = 0; |
1248 | for (i = 0; i < 16; i++) | |
1249 | if (ctl_mask & (1 << i)) | |
1250 | c++; | |
1251 | cval->channels = c; | |
a6a33259 | 1252 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
1253 | } |
1254 | ||
6bc170e4 DM |
1255 | /* |
1256 | * If all channels in the mask are marked read-only, make the control | |
eef90451 | 1257 | * read-only. snd_usb_set_cur_mix_value() will check the mask again and won't |
6bc170e4 DM |
1258 | * issue write commands to read-only channels. |
1259 | */ | |
a6a33259 | 1260 | if (cval->channels == readonly_mask) |
23caaf19 DM |
1261 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1262 | else | |
1263 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1264 | ||
6bc170e4 | 1265 | if (!kctl) { |
0ba41d91 | 1266 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1267 | kfree(cval); |
1268 | return; | |
1269 | } | |
eef90451 | 1270 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1271 | |
c3a3e040 | 1272 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 | 1273 | mapped_name = len != 0; |
6bc170e4 | 1274 | if (!len && nameid) |
c3a3e040 JK |
1275 | len = snd_usb_copy_string_desc(state, nameid, |
1276 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
1277 | |
1278 | switch (control) { | |
65f25da4 DM |
1279 | case UAC_FU_MUTE: |
1280 | case UAC_FU_VOLUME: | |
6bc170e4 DM |
1281 | /* |
1282 | * determine the control name. the rule is: | |
1da177e4 LT |
1283 | * - if a name id is given in descriptor, use it. |
1284 | * - if the connected input can be determined, then use the name | |
1285 | * of terminal type. | |
1286 | * - if the connected output can be determined, use it. | |
1287 | * - otherwise, anonymous name. | |
1288 | */ | |
6bc170e4 DM |
1289 | if (!len) { |
1290 | len = get_term_name(state, iterm, kctl->id.name, | |
1291 | sizeof(kctl->id.name), 1); | |
1292 | if (!len) | |
1293 | len = get_term_name(state, &state->oterm, | |
1294 | kctl->id.name, | |
1295 | sizeof(kctl->id.name), 1); | |
1296 | if (!len) | |
49fd46d2 DM |
1297 | snprintf(kctl->id.name, sizeof(kctl->id.name), |
1298 | "Feature %d", unitid); | |
1da177e4 | 1299 | } |
9b4ef977 DH |
1300 | |
1301 | if (!mapped_name) | |
1302 | check_no_speaker_on_headset(kctl, state->mixer->chip->card); | |
1303 | ||
6bc170e4 DM |
1304 | /* |
1305 | * determine the stream direction: | |
1da177e4 LT |
1306 | * if the connected output is USB stream, then it's likely a |
1307 | * capture stream. otherwise it should be playback (hopefully :) | |
1308 | */ | |
6bc170e4 DM |
1309 | if (!mapped_name && !(state->oterm.type >> 16)) { |
1310 | if ((state->oterm.type & 0xff00) == 0x0100) | |
49fd46d2 | 1311 | append_ctl_name(kctl, " Capture"); |
6bc170e4 | 1312 | else |
49fd46d2 | 1313 | append_ctl_name(kctl, " Playback"); |
1da177e4 | 1314 | } |
65f25da4 | 1315 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1316 | " Switch" : " Volume"); |
1da177e4 | 1317 | break; |
1da177e4 | 1318 | default: |
6bc170e4 | 1319 | if (!len) |
1da177e4 LT |
1320 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, |
1321 | sizeof(kctl->id.name)); | |
1322 | break; | |
1323 | } | |
1324 | ||
e182534d TI |
1325 | /* get min/max values */ |
1326 | get_min_max_with_quirks(cval, 0, kctl); | |
1327 | ||
1328 | if (control == UAC_FU_VOLUME) { | |
1329 | check_mapped_dB(map, cval); | |
1330 | if (cval->dBmin < cval->dBmax || !cval->initialized) { | |
1331 | kctl->tlv.c = snd_usb_mixer_vol_tlv; | |
1332 | kctl->vd[0].access |= | |
1333 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1334 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
1335 | } | |
1336 | } | |
1337 | ||
80acefff | 1338 | range = (cval->max - cval->min) / cval->res; |
6bc170e4 DM |
1339 | /* |
1340 | * Are there devices with volume range more than 255? I use a bit more | |
80acefff AF |
1341 | * to be sure. 384 is a resolution magic number found on Logitech |
1342 | * devices. It will definitively catch all buggy Logitech devices. | |
1343 | */ | |
1344 | if (range > 384) { | |
6bc170e4 | 1345 | usb_audio_warn(state->chip, |
82c1cf0a | 1346 | "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", |
6bc170e4 | 1347 | range); |
82c1cf0a MM |
1348 | usb_audio_warn(state->chip, |
1349 | "[%d] FU [%s] ch = %d, val = %d/%d/%d", | |
1350 | cval->id, kctl->id.name, cval->channels, | |
6bc170e4 | 1351 | cval->min, cval->max, cval->res); |
80acefff AF |
1352 | } |
1353 | ||
0ba41d91 | 1354 | usb_audio_dbg(state->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", |
6bc170e4 DM |
1355 | cval->id, kctl->id.name, cval->channels, |
1356 | cval->min, cval->max, cval->res); | |
ef9d5970 | 1357 | snd_usb_mixer_add_control(state->mixer, kctl); |
1da177e4 LT |
1358 | } |
1359 | ||
1da177e4 LT |
1360 | /* |
1361 | * parse a feature unit | |
1362 | * | |
25985edc | 1363 | * most of controls are defined here. |
1da177e4 | 1364 | */ |
6bc170e4 DM |
1365 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, |
1366 | void *_ftr) | |
1da177e4 LT |
1367 | { |
1368 | int channels, i, j; | |
86e07d34 | 1369 | struct usb_audio_term iterm; |
1da177e4 LT |
1370 | unsigned int master_bits, first_ch_bits; |
1371 | int err, csize; | |
23caaf19 DM |
1372 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1373 | __u8 *bmaControls; | |
1374 | ||
1375 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1376 | csize = hdr->bControlSize; | |
60c961a9 | 1377 | if (!csize) { |
0ba41d91 TI |
1378 | usb_audio_dbg(state->chip, |
1379 | "unit %u: invalid bControlSize == 0\n", | |
1380 | unitid); | |
60c961a9 NK |
1381 | return -EINVAL; |
1382 | } | |
23caaf19 DM |
1383 | channels = (hdr->bLength - 7) / csize - 1; |
1384 | bmaControls = hdr->bmaControls; | |
d56268fb | 1385 | if (hdr->bLength < 7 + csize) { |
0ba41d91 TI |
1386 | usb_audio_err(state->chip, |
1387 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1388 | unitid); | |
d56268fb CL |
1389 | return -EINVAL; |
1390 | } | |
23caaf19 DM |
1391 | } else { |
1392 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
1393 | csize = 4; | |
e8d0fee7 | 1394 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 | 1395 | bmaControls = ftr->bmaControls; |
d56268fb | 1396 | if (hdr->bLength < 6 + csize) { |
0ba41d91 TI |
1397 | usb_audio_err(state->chip, |
1398 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1399 | unitid); | |
d56268fb CL |
1400 | return -EINVAL; |
1401 | } | |
1da177e4 LT |
1402 | } |
1403 | ||
1404 | /* parse the source unit */ | |
23caaf19 | 1405 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1406 | return err; |
1407 | ||
1408 | /* determine the input source type and name */ | |
4d7b86c9 DM |
1409 | err = check_input_term(state, hdr->bSourceID, &iterm); |
1410 | if (err < 0) | |
1411 | return err; | |
1da177e4 | 1412 | |
23caaf19 | 1413 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1414 | /* master configuration quirks */ |
1415 | switch (state->chip->usb_id) { | |
1416 | case USB_ID(0x08bb, 0x2702): | |
0ba41d91 TI |
1417 | usb_audio_info(state->chip, |
1418 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
0c3cee57 | 1419 | /* disable non-functional volume control */ |
65f25da4 | 1420 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 | 1421 | break; |
c1051439 | 1422 | case USB_ID(0x1130, 0xf211): |
0ba41d91 TI |
1423 | usb_audio_info(state->chip, |
1424 | "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); | |
c1051439 DH |
1425 | /* disable non-functional volume control */ |
1426 | channels = 0; | |
1427 | break; | |
1428 | ||
0c3cee57 | 1429 | } |
1da177e4 | 1430 | if (channels > 0) |
23caaf19 | 1431 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1432 | else |
1433 | first_ch_bits = 0; | |
23caaf19 DM |
1434 | |
1435 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1436 | /* check all control types */ | |
1437 | for (i = 0; i < 10; i++) { | |
1438 | unsigned int ch_bits = 0; | |
1439 | for (j = 0; j < channels; j++) { | |
6bc170e4 DM |
1440 | unsigned int mask; |
1441 | ||
1442 | mask = snd_usb_combine_bytes(bmaControls + | |
1443 | csize * (j+1), csize); | |
23caaf19 DM |
1444 | if (mask & (1 << i)) |
1445 | ch_bits |= (1 << j); | |
1446 | } | |
1447 | /* audio class v1 controls are never read-only */ | |
6bc170e4 DM |
1448 | |
1449 | /* | |
1450 | * The first channel must be set | |
1451 | * (for ease of programming). | |
1452 | */ | |
1453 | if (ch_bits & 1) | |
1454 | build_feature_ctl(state, _ftr, ch_bits, i, | |
1455 | &iterm, unitid, 0); | |
23caaf19 | 1456 | if (master_bits & (1 << i)) |
6bc170e4 DM |
1457 | build_feature_ctl(state, _ftr, 0, i, &iterm, |
1458 | unitid, 0); | |
23caaf19 DM |
1459 | } |
1460 | } else { /* UAC_VERSION_2 */ | |
d09c06c6 | 1461 | for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { |
23caaf19 DM |
1462 | unsigned int ch_bits = 0; |
1463 | unsigned int ch_read_only = 0; | |
1464 | ||
1465 | for (j = 0; j < channels; j++) { | |
6bc170e4 DM |
1466 | unsigned int mask; |
1467 | ||
1468 | mask = snd_usb_combine_bytes(bmaControls + | |
1469 | csize * (j+1), csize); | |
dcbe7bcf | 1470 | if (uac2_control_is_readable(mask, i)) { |
23caaf19 | 1471 | ch_bits |= (1 << j); |
dcbe7bcf | 1472 | if (!uac2_control_is_writeable(mask, i)) |
23caaf19 DM |
1473 | ch_read_only |= (1 << j); |
1474 | } | |
1475 | } | |
1476 | ||
6bc170e4 DM |
1477 | /* |
1478 | * NOTE: build_feature_ctl() will mark the control | |
1479 | * read-only if all channels are marked read-only in | |
1480 | * the descriptors. Otherwise, the control will be | |
1481 | * reported as writeable, but the driver will not | |
1482 | * actually issue a write command for read-only | |
1483 | * channels. | |
1484 | */ | |
1485 | ||
1486 | /* | |
1487 | * The first channel must be set | |
1488 | * (for ease of programming). | |
1489 | */ | |
1490 | if (ch_bits & 1) | |
1491 | build_feature_ctl(state, _ftr, ch_bits, i, | |
1492 | &iterm, unitid, ch_read_only); | |
dcbe7bcf | 1493 | if (uac2_control_is_readable(master_bits, i)) |
23caaf19 | 1494 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
dcbe7bcf | 1495 | !uac2_control_is_writeable(master_bits, i)); |
1da177e4 | 1496 | } |
1da177e4 LT |
1497 | } |
1498 | ||
1499 | return 0; | |
1500 | } | |
1501 | ||
1da177e4 LT |
1502 | /* |
1503 | * Mixer Unit | |
1504 | */ | |
1505 | ||
1506 | /* | |
1507 | * build a mixer unit control | |
1508 | * | |
1509 | * the callbacks are identical with feature unit. | |
1510 | * input channel number (zero based) is given in control field instead. | |
1511 | */ | |
99fc8645 DM |
1512 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1513 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1514 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1515 | struct usb_audio_term *iterm) |
1da177e4 | 1516 | { |
86e07d34 | 1517 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1518 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1519 | unsigned int i, len; |
86e07d34 | 1520 | struct snd_kcontrol *kctl; |
c3a3e040 | 1521 | const struct usbmix_name_map *map; |
1da177e4 | 1522 | |
c3a3e040 JK |
1523 | map = find_map(state, unitid, 0); |
1524 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1525 | return; |
1526 | ||
561b220a | 1527 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
6bc170e4 | 1528 | if (!cval) |
1da177e4 LT |
1529 | return; |
1530 | ||
84957a8a | 1531 | cval->mixer = state->mixer; |
1da177e4 LT |
1532 | cval->id = unitid; |
1533 | cval->control = in_ch + 1; /* based on 1 */ | |
1534 | cval->val_type = USB_MIXER_S16; | |
1535 | for (i = 0; i < num_outs; i++) { | |
6bc170e4 DM |
1536 | __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); |
1537 | ||
1538 | if (check_matrix_bitmap(c, in_ch, i, num_outs)) { | |
1da177e4 LT |
1539 | cval->cmask |= (1 << i); |
1540 | cval->channels++; | |
1541 | } | |
1542 | } | |
1543 | ||
1544 | /* get min/max values */ | |
1545 | get_min_max(cval, 0); | |
1546 | ||
1547 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
6bc170e4 | 1548 | if (!kctl) { |
0ba41d91 | 1549 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1550 | kfree(cval); |
1551 | return; | |
1552 | } | |
eef90451 | 1553 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1554 | |
c3a3e040 | 1555 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
6bc170e4 DM |
1556 | if (!len) |
1557 | len = get_term_name(state, iterm, kctl->id.name, | |
1558 | sizeof(kctl->id.name), 0); | |
1559 | if (!len) | |
1da177e4 | 1560 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); |
08d1e635 | 1561 | append_ctl_name(kctl, " Volume"); |
1da177e4 | 1562 | |
0ba41d91 | 1563 | usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", |
1da177e4 | 1564 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); |
ef9d5970 | 1565 | snd_usb_mixer_add_control(state->mixer, kctl); |
1da177e4 LT |
1566 | } |
1567 | ||
1da177e4 LT |
1568 | /* |
1569 | * parse a mixer unit | |
1570 | */ | |
6bc170e4 DM |
1571 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, |
1572 | void *raw_desc) | |
1da177e4 | 1573 | { |
99fc8645 | 1574 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1575 | struct usb_audio_term iterm; |
1da177e4 LT |
1576 | int input_pins, num_ins, num_outs; |
1577 | int pin, ich, err; | |
1578 | ||
6bc170e4 DM |
1579 | if (desc->bLength < 11 || !(input_pins = desc->bNrInPins) || |
1580 | !(num_outs = uac_mixer_unit_bNrChannels(desc))) { | |
1581 | usb_audio_err(state->chip, | |
1582 | "invalid MIXER UNIT descriptor %d\n", | |
1583 | unitid); | |
1da177e4 LT |
1584 | return -EINVAL; |
1585 | } | |
1586 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
99fc8645 | 1587 | if (desc->bLength <= 10 + input_pins) { |
6bc170e4 DM |
1588 | usb_audio_dbg(state->chip, "MU %d has no bmControls field\n", |
1589 | unitid); | |
1da177e4 LT |
1590 | return 0; |
1591 | } | |
1592 | ||
1593 | num_ins = 0; | |
1594 | ich = 0; | |
1595 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1596 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 | 1597 | if (err < 0) |
284a8dd6 | 1598 | continue; |
99fc8645 | 1599 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1600 | if (err < 0) |
1601 | return err; | |
1602 | num_ins += iterm.channels; | |
6bc170e4 | 1603 | for (; ich < num_ins; ich++) { |
1da177e4 LT |
1604 | int och, ich_has_controls = 0; |
1605 | ||
6bc170e4 DM |
1606 | for (och = 0; och < num_outs; och++) { |
1607 | __u8 *c = uac_mixer_unit_bmControls(desc, | |
1608 | state->mixer->protocol); | |
1609 | ||
1610 | if (check_matrix_bitmap(c, ich, och, num_outs)) { | |
1da177e4 LT |
1611 | ich_has_controls = 1; |
1612 | break; | |
1613 | } | |
1614 | } | |
1615 | if (ich_has_controls) | |
1616 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1617 | unitid, &iterm); | |
1618 | } | |
1619 | } | |
1620 | return 0; | |
1621 | } | |
1622 | ||
1da177e4 LT |
1623 | /* |
1624 | * Processing Unit / Extension Unit | |
1625 | */ | |
1626 | ||
1627 | /* get callback for processing/extension unit */ | |
6bc170e4 DM |
1628 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, |
1629 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1630 | { |
86e07d34 | 1631 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1632 | int err, val; |
1633 | ||
1634 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
5aeee342 | 1635 | if (err < 0) { |
1da177e4 | 1636 | ucontrol->value.integer.value[0] = cval->min; |
5aeee342 | 1637 | return filter_error(cval, err); |
1da177e4 | 1638 | } |
1da177e4 LT |
1639 | val = get_relative_value(cval, val); |
1640 | ucontrol->value.integer.value[0] = val; | |
1641 | return 0; | |
1642 | } | |
1643 | ||
1644 | /* put callback for processing/extension unit */ | |
6bc170e4 DM |
1645 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, |
1646 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1647 | { |
86e07d34 | 1648 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1649 | int val, oval, err; |
1650 | ||
1651 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
5aeee342 TI |
1652 | if (err < 0) |
1653 | return filter_error(cval, err); | |
1da177e4 LT |
1654 | val = ucontrol->value.integer.value[0]; |
1655 | val = get_abs_value(cval, val); | |
1656 | if (val != oval) { | |
1657 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1658 | return 1; | |
1659 | } | |
1660 | return 0; | |
1661 | } | |
1662 | ||
1663 | /* alsa control interface for processing/extension unit */ | |
86e07d34 | 1664 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1665 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1666 | .name = "", /* will be filled later */ | |
1667 | .info = mixer_ctl_feature_info, | |
1668 | .get = mixer_ctl_procunit_get, | |
1669 | .put = mixer_ctl_procunit_put, | |
1670 | }; | |
1671 | ||
1da177e4 LT |
1672 | /* |
1673 | * predefined data for processing units | |
1674 | */ | |
1675 | struct procunit_value_info { | |
1676 | int control; | |
1677 | char *suffix; | |
1678 | int val_type; | |
1679 | int min_value; | |
1680 | }; | |
1681 | ||
1682 | struct procunit_info { | |
1683 | int type; | |
1684 | char *name; | |
1685 | struct procunit_value_info *values; | |
1686 | }; | |
1687 | ||
1688 | static struct procunit_value_info updown_proc_info[] = { | |
65f25da4 DM |
1689 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1690 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1691 | { 0 } |
1692 | }; | |
1693 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
1694 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1695 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1696 | { 0 } |
1697 | }; | |
1698 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
1699 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1700 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
1701 | { 0 } |
1702 | }; | |
1703 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
1704 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1705 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1706 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1707 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
1708 | { 0 } |
1709 | }; | |
1710 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
1711 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1712 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1713 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1714 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
1715 | { 0 } |
1716 | }; | |
1717 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
1718 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1719 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
1720 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
1721 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1722 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
1723 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
1724 | { 0 } |
1725 | }; | |
1726 | ||
1727 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
1728 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
1729 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1730 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
1731 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
1732 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
1733 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
1734 | { 0 }, |
1735 | }; | |
7d2b451e SK |
1736 | /* |
1737 | * predefined data for extension units | |
1738 | */ | |
1739 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1740 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1741 | { 0 } | |
7d2b451e SK |
1742 | }; |
1743 | static struct procunit_value_info clock_source_xu_info[] = { | |
1744 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1745 | { 0 } | |
1746 | }; | |
1747 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1748 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1749 | { 0 } | |
1750 | }; | |
1751 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1752 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1753 | { 0 } | |
1754 | }; | |
1755 | static struct procunit_info extunits[] = { | |
1756 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1757 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1758 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1759 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1760 | { 0 } | |
1761 | }; | |
6bc170e4 | 1762 | |
1da177e4 LT |
1763 | /* |
1764 | * build a processing/extension unit | |
1765 | */ | |
6bc170e4 DM |
1766 | static int build_audio_procunit(struct mixer_build *state, int unitid, |
1767 | void *raw_desc, struct procunit_info *list, | |
1768 | char *name) | |
1da177e4 | 1769 | { |
99fc8645 DM |
1770 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1771 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1772 | struct usb_mixer_elem_info *cval; |
1773 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1774 | int i, err, nameid, type, len; |
1775 | struct procunit_info *info; | |
1776 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1777 | const struct usbmix_name_map *map; |
1da177e4 LT |
1778 | static struct procunit_value_info default_value_info[] = { |
1779 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1780 | { 0 } | |
1781 | }; | |
1782 | static struct procunit_info default_info = { | |
1783 | 0, NULL, default_value_info | |
1784 | }; | |
1785 | ||
23caaf19 DM |
1786 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1787 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
0ba41d91 | 1788 | usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); |
1da177e4 LT |
1789 | return -EINVAL; |
1790 | } | |
1791 | ||
1792 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1793 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1794 | return err; |
1795 | } | |
1796 | ||
99fc8645 | 1797 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1798 | for (info = list; info && info->type; info++) |
1799 | if (info->type == type) | |
1800 | break; | |
6bc170e4 | 1801 | if (!info || !info->type) |
1da177e4 LT |
1802 | info = &default_info; |
1803 | ||
1804 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1805 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 | 1806 | |
6bc170e4 | 1807 | if (!(controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) |
1da177e4 | 1808 | continue; |
c3a3e040 JK |
1809 | map = find_map(state, unitid, valinfo->control); |
1810 | if (check_ignored_ctl(map)) | |
1da177e4 | 1811 | continue; |
561b220a | 1812 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 1813 | if (!cval) |
1da177e4 | 1814 | return -ENOMEM; |
84957a8a | 1815 | cval->mixer = state->mixer; |
1da177e4 LT |
1816 | cval->id = unitid; |
1817 | cval->control = valinfo->control; | |
1818 | cval->val_type = valinfo->val_type; | |
1819 | cval->channels = 1; | |
1820 | ||
1821 | /* get min/max values */ | |
65f25da4 | 1822 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
23caaf19 | 1823 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1824 | /* FIXME: hard-coded */ |
1825 | cval->min = 1; | |
99fc8645 | 1826 | cval->max = control_spec[0]; |
1da177e4 LT |
1827 | cval->res = 1; |
1828 | cval->initialized = 1; | |
7d2b451e SK |
1829 | } else { |
1830 | if (type == USB_XU_CLOCK_RATE) { | |
6bc170e4 DM |
1831 | /* |
1832 | * E-Mu USB 0404/0202/TrackerPre/0204 | |
7d2b451e SK |
1833 | * samplerate control quirk |
1834 | */ | |
1835 | cval->min = 0; | |
1836 | cval->max = 5; | |
1837 | cval->res = 1; | |
1838 | cval->initialized = 1; | |
1839 | } else | |
1840 | get_min_max(cval, valinfo->min_value); | |
1841 | } | |
1da177e4 LT |
1842 | |
1843 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
6bc170e4 | 1844 | if (!kctl) { |
1da177e4 LT |
1845 | kfree(cval); |
1846 | return -ENOMEM; | |
1847 | } | |
eef90451 | 1848 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1849 | |
6bc170e4 | 1850 | if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { |
c3a3e040 | 1851 | /* nothing */ ; |
6bc170e4 | 1852 | } else if (info->name) { |
1da177e4 | 1853 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); |
6bc170e4 | 1854 | } else { |
23caaf19 | 1855 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1856 | len = 0; |
1857 | if (nameid) | |
6bc170e4 DM |
1858 | len = snd_usb_copy_string_desc(state, nameid, |
1859 | kctl->id.name, | |
1860 | sizeof(kctl->id.name)); | |
1861 | if (!len) | |
1da177e4 LT |
1862 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); |
1863 | } | |
08d1e635 TI |
1864 | append_ctl_name(kctl, " "); |
1865 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 | 1866 | |
0ba41d91 | 1867 | usb_audio_dbg(state->chip, |
6bc170e4 DM |
1868 | "[%d] PU [%s] ch = %d, val = %d/%d\n", |
1869 | cval->id, kctl->id.name, cval->channels, | |
1870 | cval->min, cval->max); | |
1871 | ||
1872 | err = snd_usb_mixer_add_control(state->mixer, kctl); | |
1873 | if (err < 0) | |
1da177e4 LT |
1874 | return err; |
1875 | } | |
1876 | return 0; | |
1877 | } | |
1878 | ||
6bc170e4 DM |
1879 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, |
1880 | void *raw_desc) | |
1da177e4 | 1881 | { |
6bc170e4 DM |
1882 | return build_audio_procunit(state, unitid, raw_desc, |
1883 | procunits, "Processing Unit"); | |
1da177e4 LT |
1884 | } |
1885 | ||
6bc170e4 DM |
1886 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, |
1887 | void *raw_desc) | |
1da177e4 | 1888 | { |
6bc170e4 DM |
1889 | /* |
1890 | * Note that we parse extension units with processing unit descriptors. | |
1891 | * That's ok as the layout is the same. | |
1892 | */ | |
1893 | return build_audio_procunit(state, unitid, raw_desc, | |
1894 | extunits, "Extension Unit"); | |
1da177e4 LT |
1895 | } |
1896 | ||
1da177e4 LT |
1897 | /* |
1898 | * Selector Unit | |
1899 | */ | |
1900 | ||
6bc170e4 DM |
1901 | /* |
1902 | * info callback for selector unit | |
1da177e4 LT |
1903 | * use an enumerator type for routing |
1904 | */ | |
6bc170e4 DM |
1905 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, |
1906 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 1907 | { |
86e07d34 | 1908 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
2a1803a7 | 1909 | const char **itemlist = (const char **)kcontrol->private_value; |
1da177e4 | 1910 | |
5e246b85 TI |
1911 | if (snd_BUG_ON(!itemlist)) |
1912 | return -EINVAL; | |
2a1803a7 | 1913 | return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); |
1da177e4 LT |
1914 | } |
1915 | ||
1916 | /* get callback for selector unit */ | |
6bc170e4 DM |
1917 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, |
1918 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1919 | { |
86e07d34 | 1920 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1921 | int val, err; |
1922 | ||
09414207 | 1923 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 1924 | if (err < 0) { |
5aeee342 TI |
1925 | ucontrol->value.enumerated.item[0] = 0; |
1926 | return filter_error(cval, err); | |
1da177e4 LT |
1927 | } |
1928 | val = get_relative_value(cval, val); | |
1929 | ucontrol->value.enumerated.item[0] = val; | |
1930 | return 0; | |
1931 | } | |
1932 | ||
1933 | /* put callback for selector unit */ | |
6bc170e4 DM |
1934 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, |
1935 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1936 | { |
86e07d34 | 1937 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1938 | int val, oval, err; |
1939 | ||
09414207 | 1940 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
5aeee342 TI |
1941 | if (err < 0) |
1942 | return filter_error(cval, err); | |
1da177e4 LT |
1943 | val = ucontrol->value.enumerated.item[0]; |
1944 | val = get_abs_value(cval, val); | |
1945 | if (val != oval) { | |
09414207 | 1946 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
1947 | return 1; |
1948 | } | |
1949 | return 0; | |
1950 | } | |
1951 | ||
1952 | /* alsa control interface for selector unit */ | |
86e07d34 | 1953 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
1954 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1955 | .name = "", /* will be filled later */ | |
1956 | .info = mixer_ctl_selector_info, | |
1957 | .get = mixer_ctl_selector_get, | |
1958 | .put = mixer_ctl_selector_put, | |
1959 | }; | |
1960 | ||
6bc170e4 DM |
1961 | /* |
1962 | * private free callback. | |
1da177e4 LT |
1963 | * free both private_data and private_value |
1964 | */ | |
86e07d34 | 1965 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
1966 | { |
1967 | int i, num_ins = 0; | |
1968 | ||
1969 | if (kctl->private_data) { | |
86e07d34 | 1970 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
1971 | num_ins = cval->max; |
1972 | kfree(cval); | |
1973 | kctl->private_data = NULL; | |
1974 | } | |
1975 | if (kctl->private_value) { | |
1976 | char **itemlist = (char **)kctl->private_value; | |
1977 | for (i = 0; i < num_ins; i++) | |
1978 | kfree(itemlist[i]); | |
1979 | kfree(itemlist); | |
1980 | kctl->private_value = 0; | |
1981 | } | |
1982 | } | |
1983 | ||
1984 | /* | |
1985 | * parse a selector unit | |
1986 | */ | |
6bc170e4 DM |
1987 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, |
1988 | void *raw_desc) | |
1da177e4 | 1989 | { |
99fc8645 | 1990 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1991 | unsigned int i, nameid, len; |
1992 | int err; | |
86e07d34 TI |
1993 | struct usb_mixer_elem_info *cval; |
1994 | struct snd_kcontrol *kctl; | |
c3a3e040 | 1995 | const struct usbmix_name_map *map; |
1da177e4 LT |
1996 | char **namelist; |
1997 | ||
99fc8645 | 1998 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
0ba41d91 TI |
1999 | usb_audio_err(state->chip, |
2000 | "invalid SELECTOR UNIT descriptor %d\n", unitid); | |
1da177e4 LT |
2001 | return -EINVAL; |
2002 | } | |
2003 | ||
99fc8645 DM |
2004 | for (i = 0; i < desc->bNrInPins; i++) { |
2005 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
2006 | return err; |
2007 | } | |
2008 | ||
99fc8645 | 2009 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
2010 | return 0; |
2011 | ||
c3a3e040 JK |
2012 | map = find_map(state, unitid, 0); |
2013 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
2014 | return 0; |
2015 | ||
561b220a | 2016 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 2017 | if (!cval) |
1da177e4 | 2018 | return -ENOMEM; |
84957a8a | 2019 | cval->mixer = state->mixer; |
1da177e4 LT |
2020 | cval->id = unitid; |
2021 | cval->val_type = USB_MIXER_U8; | |
2022 | cval->channels = 1; | |
2023 | cval->min = 1; | |
99fc8645 | 2024 | cval->max = desc->bNrInPins; |
1da177e4 LT |
2025 | cval->res = 1; |
2026 | cval->initialized = 1; | |
2027 | ||
a358a0ef | 2028 | if (state->mixer->protocol == UAC_VERSION_1) |
09414207 | 2029 | cval->control = 0; |
a358a0ef JR |
2030 | else /* UAC_VERSION_2 */ |
2031 | cval->control = (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) ? | |
2032 | UAC2_CX_CLOCK_SELECTOR : UAC2_SU_SELECTOR; | |
09414207 | 2033 | |
99fc8645 | 2034 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
6bc170e4 | 2035 | if (!namelist) { |
1da177e4 LT |
2036 | kfree(cval); |
2037 | return -ENOMEM; | |
2038 | } | |
2039 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 2040 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 2041 | struct usb_audio_term iterm; |
1da177e4 LT |
2042 | len = 0; |
2043 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
6bc170e4 | 2044 | if (!namelist[i]) { |
7fbe3ca5 | 2045 | while (i--) |
1da177e4 LT |
2046 | kfree(namelist[i]); |
2047 | kfree(namelist); | |
2048 | kfree(cval); | |
2049 | return -ENOMEM; | |
2050 | } | |
8e062ec7 CL |
2051 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
2052 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 2053 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
2054 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
2055 | if (! len) | |
af831eef | 2056 | sprintf(namelist[i], "Input %u", i); |
1da177e4 LT |
2057 | } |
2058 | ||
2059 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
2060 | if (! kctl) { | |
0ba41d91 | 2061 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
878b4789 | 2062 | kfree(namelist); |
1da177e4 LT |
2063 | kfree(cval); |
2064 | return -ENOMEM; | |
2065 | } | |
2066 | kctl->private_value = (unsigned long)namelist; | |
2067 | kctl->private_free = usb_mixer_selector_elem_free; | |
2068 | ||
99fc8645 | 2069 | nameid = uac_selector_unit_iSelector(desc); |
c3a3e040 | 2070 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
2071 | if (len) |
2072 | ; | |
2073 | else if (nameid) | |
6bc170e4 DM |
2074 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, |
2075 | sizeof(kctl->id.name)); | |
1da177e4 LT |
2076 | else { |
2077 | len = get_term_name(state, &state->oterm, | |
2078 | kctl->id.name, sizeof(kctl->id.name), 0); | |
6bc170e4 | 2079 | if (!len) |
1da177e4 LT |
2080 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); |
2081 | ||
09414207 DM |
2082 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
2083 | append_ctl_name(kctl, " Clock Source"); | |
2084 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 2085 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 2086 | else |
08d1e635 | 2087 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
2088 | } |
2089 | ||
0ba41d91 | 2090 | usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", |
99fc8645 | 2091 | cval->id, kctl->id.name, desc->bNrInPins); |
ef9d5970 | 2092 | if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) |
1da177e4 LT |
2093 | return err; |
2094 | ||
2095 | return 0; | |
2096 | } | |
2097 | ||
1da177e4 LT |
2098 | /* |
2099 | * parse an audio unit recursively | |
2100 | */ | |
2101 | ||
86e07d34 | 2102 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
2103 | { |
2104 | unsigned char *p1; | |
2105 | ||
2106 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
2107 | return 0; /* the unit already visited */ | |
2108 | ||
2109 | p1 = find_audio_control_unit(state, unitid); | |
2110 | if (!p1) { | |
0ba41d91 | 2111 | usb_audio_err(state->chip, "unit %d not found!\n", unitid); |
1da177e4 LT |
2112 | return -EINVAL; |
2113 | } | |
2114 | ||
2115 | switch (p1[2]) { | |
de48c7bc | 2116 | case UAC_INPUT_TERMINAL: |
09414207 | 2117 | case UAC2_CLOCK_SOURCE: |
1da177e4 | 2118 | return 0; /* NOP */ |
de48c7bc | 2119 | case UAC_MIXER_UNIT: |
1da177e4 | 2120 | return parse_audio_mixer_unit(state, unitid, p1); |
de48c7bc | 2121 | case UAC_SELECTOR_UNIT: |
09414207 | 2122 | case UAC2_CLOCK_SELECTOR: |
1da177e4 | 2123 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 2124 | case UAC_FEATURE_UNIT: |
1da177e4 | 2125 | return parse_audio_feature_unit(state, unitid, p1); |
69da9bcb | 2126 | case UAC1_PROCESSING_UNIT: |
23caaf19 DM |
2127 | /* UAC2_EFFECT_UNIT has the same value */ |
2128 | if (state->mixer->protocol == UAC_VERSION_1) | |
2129 | return parse_audio_processing_unit(state, unitid, p1); | |
2130 | else | |
2131 | return 0; /* FIXME - effect units not implemented yet */ | |
69da9bcb | 2132 | case UAC1_EXTENSION_UNIT: |
23caaf19 DM |
2133 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
2134 | if (state->mixer->protocol == UAC_VERSION_1) | |
2135 | return parse_audio_extension_unit(state, unitid, p1); | |
2136 | else /* UAC_VERSION_2 */ | |
2137 | return parse_audio_processing_unit(state, unitid, p1); | |
61ac5130 TH |
2138 | case UAC2_EXTENSION_UNIT_V2: |
2139 | return parse_audio_extension_unit(state, unitid, p1); | |
1da177e4 | 2140 | default: |
0ba41d91 TI |
2141 | usb_audio_err(state->chip, |
2142 | "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1da177e4 LT |
2143 | return -EINVAL; |
2144 | } | |
2145 | } | |
2146 | ||
84957a8a CL |
2147 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
2148 | { | |
6639b6c2 CL |
2149 | kfree(mixer->id_elems); |
2150 | if (mixer->urb) { | |
2151 | kfree(mixer->urb->transfer_buffer); | |
2152 | usb_free_urb(mixer->urb); | |
2153 | } | |
68df9de1 | 2154 | usb_free_urb(mixer->rc_urb); |
b259b10c | 2155 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
2156 | kfree(mixer); |
2157 | } | |
2158 | ||
86e07d34 | 2159 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
2160 | { |
2161 | struct usb_mixer_interface *mixer = device->device_data; | |
2162 | snd_usb_mixer_free(mixer); | |
2163 | return 0; | |
2164 | } | |
2165 | ||
1da177e4 LT |
2166 | /* |
2167 | * create mixer controls | |
2168 | * | |
de48c7bc | 2169 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 2170 | */ |
84957a8a | 2171 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 2172 | { |
86e07d34 | 2173 | struct mixer_build state; |
1da177e4 LT |
2174 | int err; |
2175 | const struct usbmix_ctl_map *map; | |
23caaf19 | 2176 | void *p; |
1da177e4 LT |
2177 | |
2178 | memset(&state, 0, sizeof(state)); | |
84957a8a CL |
2179 | state.chip = mixer->chip; |
2180 | state.mixer = mixer; | |
1faa5d07 DM |
2181 | state.buffer = mixer->hostif->extra; |
2182 | state.buflen = mixer->hostif->extralen; | |
1da177e4 LT |
2183 | |
2184 | /* check the mapping table */ | |
27d10f56 CL |
2185 | for (map = usbmix_ctl_maps; map->id; map++) { |
2186 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 2187 | state.map = map->map; |
8e062ec7 | 2188 | state.selector_map = map->selector_map; |
84957a8a | 2189 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
2190 | break; |
2191 | } | |
2192 | } | |
1da177e4 | 2193 | |
23caaf19 | 2194 | p = NULL; |
6bc170e4 DM |
2195 | while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, |
2196 | mixer->hostif->extralen, | |
1faa5d07 | 2197 | p, UAC_OUTPUT_TERMINAL)) != NULL) { |
23caaf19 | 2198 | if (mixer->protocol == UAC_VERSION_1) { |
69da9bcb | 2199 | struct uac1_output_terminal_descriptor *desc = p; |
23caaf19 DM |
2200 | |
2201 | if (desc->bLength < sizeof(*desc)) | |
2202 | continue; /* invalid descriptor? */ | |
6bc170e4 DM |
2203 | /* mark terminal ID as visited */ |
2204 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
2205 | state.oterm.id = desc->bTerminalID; |
2206 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2207 | state.oterm.name = desc->iTerminal; | |
2208 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2209 | if (err < 0 && err != -EINVAL) |
23caaf19 DM |
2210 | return err; |
2211 | } else { /* UAC_VERSION_2 */ | |
2212 | struct uac2_output_terminal_descriptor *desc = p; | |
2213 | ||
2214 | if (desc->bLength < sizeof(*desc)) | |
2215 | continue; /* invalid descriptor? */ | |
6bc170e4 DM |
2216 | /* mark terminal ID as visited */ |
2217 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
2218 | state.oterm.id = desc->bTerminalID; |
2219 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2220 | state.oterm.name = desc->iTerminal; | |
2221 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2222 | if (err < 0 && err != -EINVAL) |
23caaf19 | 2223 | return err; |
09414207 | 2224 | |
6bc170e4 DM |
2225 | /* |
2226 | * For UAC2, use the same approach to also add the | |
2227 | * clock selectors | |
2228 | */ | |
09414207 | 2229 | err = parse_audio_unit(&state, desc->bCSourceID); |
83ea5d18 | 2230 | if (err < 0 && err != -EINVAL) |
09414207 | 2231 | return err; |
23caaf19 | 2232 | } |
1da177e4 | 2233 | } |
23caaf19 | 2234 | |
1da177e4 LT |
2235 | return 0; |
2236 | } | |
84957a8a | 2237 | |
7b1eda22 | 2238 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 2239 | { |
86e07d34 | 2240 | struct usb_mixer_elem_info *info; |
6639b6c2 CL |
2241 | |
2242 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) | |
2243 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2244 | info->elem_id); | |
2245 | } | |
2246 | ||
ebfdeea3 JK |
2247 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
2248 | int unitid, | |
2249 | struct usb_mixer_elem_info *cval) | |
2250 | { | |
2251 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", | |
2252 | "S8", "U8", "S16", "U16"}; | |
2253 | snd_iprintf(buffer, " Unit: %i\n", unitid); | |
2254 | if (cval->elem_id) | |
2255 | snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", | |
2256 | cval->elem_id->name, cval->elem_id->index); | |
2257 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " | |
2258 | "channels=%i, type=\"%s\"\n", cval->id, | |
2259 | cval->control, cval->cmask, cval->channels, | |
2260 | val_types[cval->val_type]); | |
2261 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
2262 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
2263 | } | |
2264 | ||
2265 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
2266 | struct snd_info_buffer *buffer) | |
2267 | { | |
2268 | struct snd_usb_audio *chip = entry->private_data; | |
2269 | struct usb_mixer_interface *mixer; | |
2270 | struct usb_mixer_elem_info *cval; | |
2271 | int unitid; | |
2272 | ||
2273 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
2274 | snd_iprintf(buffer, | |
7affdc17 | 2275 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
3d8d4dcf | 2276 | chip->usb_id, snd_usb_ctrl_intf(chip), |
7affdc17 | 2277 | mixer->ignore_ctl_error); |
ebfdeea3 JK |
2278 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
2279 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
2280 | for (cval = mixer->id_elems[unitid]; cval; | |
2281 | cval = cval->next_id_elem) | |
2282 | snd_usb_mixer_dump_cval(buffer, unitid, cval); | |
2283 | } | |
2284 | } | |
2285 | } | |
2286 | ||
e213e9cf DM |
2287 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
2288 | int attribute, int value, int index) | |
2289 | { | |
2290 | struct usb_mixer_elem_info *info; | |
2291 | __u8 unitid = (index >> 8) & 0xff; | |
2292 | __u8 control = (value >> 8) & 0xff; | |
2293 | __u8 channel = value & 0xff; | |
2294 | ||
2295 | if (channel >= MAX_CHANNELS) { | |
0ba41d91 TI |
2296 | usb_audio_dbg(mixer->chip, |
2297 | "%s(): bogus channel number %d\n", | |
2298 | __func__, channel); | |
e213e9cf DM |
2299 | return; |
2300 | } | |
2301 | ||
2302 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { | |
2303 | if (info->control != control) | |
2304 | continue; | |
2305 | ||
2306 | switch (attribute) { | |
2307 | case UAC2_CS_CUR: | |
2308 | /* invalidate cache, so the value is read from the device */ | |
2309 | if (channel) | |
2310 | info->cached &= ~(1 << channel); | |
2311 | else /* master channel */ | |
2312 | info->cached = 0; | |
2313 | ||
2314 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2315 | info->elem_id); | |
2316 | break; | |
2317 | ||
2318 | case UAC2_CS_RANGE: | |
2319 | /* TODO */ | |
2320 | break; | |
2321 | ||
2322 | case UAC2_CS_MEM: | |
2323 | /* TODO */ | |
2324 | break; | |
2325 | ||
2326 | default: | |
0ba41d91 TI |
2327 | usb_audio_dbg(mixer->chip, |
2328 | "unknown attribute %d in interrupt\n", | |
2329 | attribute); | |
e213e9cf DM |
2330 | break; |
2331 | } /* switch */ | |
2332 | } | |
2333 | } | |
2334 | ||
2335 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2336 | { |
2337 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf | 2338 | int len = urb->actual_length; |
edf7de31 | 2339 | int ustatus = urb->status; |
e213e9cf | 2340 | |
edf7de31 | 2341 | if (ustatus != 0) |
e213e9cf | 2342 | goto requeue; |
6639b6c2 | 2343 | |
e213e9cf DM |
2344 | if (mixer->protocol == UAC_VERSION_1) { |
2345 | struct uac1_status_word *status; | |
6639b6c2 | 2346 | |
e213e9cf DM |
2347 | for (status = urb->transfer_buffer; |
2348 | len >= sizeof(*status); | |
2349 | len -= sizeof(*status), status++) { | |
0ba41d91 | 2350 | dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", |
e213e9cf DM |
2351 | status->bStatusType, |
2352 | status->bOriginator); | |
2353 | ||
6639b6c2 | 2354 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2355 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2356 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2357 | continue; |
e213e9cf DM |
2358 | |
2359 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2360 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2361 | else |
e213e9cf DM |
2362 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2363 | } | |
2364 | } else { /* UAC_VERSION_2 */ | |
2365 | struct uac2_interrupt_data_msg *msg; | |
2366 | ||
2367 | for (msg = urb->transfer_buffer; | |
2368 | len >= sizeof(*msg); | |
2369 | len -= sizeof(*msg), msg++) { | |
2370 | /* drop vendor specific and endpoint requests */ | |
2371 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2372 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2373 | continue; | |
2374 | ||
2375 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2376 | le16_to_cpu(msg->wValue), | |
2377 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2378 | } |
2379 | } | |
e213e9cf DM |
2380 | |
2381 | requeue: | |
6bc170e4 DM |
2382 | if (ustatus != -ENOENT && |
2383 | ustatus != -ECONNRESET && | |
2384 | ustatus != -ESHUTDOWN) { | |
6639b6c2 CL |
2385 | urb->dev = mixer->chip->dev; |
2386 | usb_submit_urb(urb, GFP_ATOMIC); | |
2387 | } | |
2388 | } | |
2389 | ||
2390 | /* create the handler for the optional status interrupt endpoint */ | |
2391 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2392 | { | |
6639b6c2 CL |
2393 | struct usb_endpoint_descriptor *ep; |
2394 | void *transfer_buffer; | |
2395 | int buffer_length; | |
2396 | unsigned int epnum; | |
2397 | ||
6639b6c2 | 2398 | /* we need one interrupt input endpoint */ |
1faa5d07 | 2399 | if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) |
6639b6c2 | 2400 | return 0; |
1faa5d07 | 2401 | ep = get_endpoint(mixer->hostif, 0); |
913ae5a2 | 2402 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2403 | return 0; |
2404 | ||
42a6e66f | 2405 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2406 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2407 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2408 | if (!transfer_buffer) | |
2409 | return -ENOMEM; | |
2410 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2411 | if (!mixer->urb) { | |
2412 | kfree(transfer_buffer); | |
2413 | return -ENOMEM; | |
2414 | } | |
2415 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2416 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2417 | transfer_buffer, buffer_length, | |
e213e9cf | 2418 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2419 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2420 | return 0; | |
2421 | } | |
2422 | ||
7a9b8063 TI |
2423 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2424 | int ignore_error) | |
84957a8a | 2425 | { |
86e07d34 | 2426 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2427 | .dev_free = snd_usb_mixer_dev_free |
2428 | }; | |
2429 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2430 | struct snd_info_entry *entry; |
23caaf19 | 2431 | int err; |
84957a8a CL |
2432 | |
2433 | strcpy(chip->card->mixername, "USB Mixer"); | |
2434 | ||
561b220a | 2435 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2436 | if (!mixer) |
2437 | return -ENOMEM; | |
2438 | mixer->chip = chip; | |
7a9b8063 | 2439 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2440 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2441 | GFP_KERNEL); | |
6639b6c2 CL |
2442 | if (!mixer->id_elems) { |
2443 | kfree(mixer); | |
2444 | return -ENOMEM; | |
2445 | } | |
84957a8a | 2446 | |
1faa5d07 DM |
2447 | mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
2448 | switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { | |
a2acad82 CL |
2449 | case UAC_VERSION_1: |
2450 | default: | |
2451 | mixer->protocol = UAC_VERSION_1; | |
2452 | break; | |
2453 | case UAC_VERSION_2: | |
2454 | mixer->protocol = UAC_VERSION_2; | |
2455 | break; | |
2456 | } | |
7b8a043f | 2457 | |
6639b6c2 | 2458 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2459 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2460 | goto _error; | |
84957a8a | 2461 | |
7b1eda22 | 2462 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2463 | |
9cbb2808 | 2464 | err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); |
93446edc CL |
2465 | if (err < 0) |
2466 | goto _error; | |
ebfdeea3 JK |
2467 | |
2468 | if (list_empty(&chip->mixer_list) && | |
2469 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2470 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2471 | ||
84957a8a CL |
2472 | list_add(&mixer->list, &chip->mixer_list); |
2473 | return 0; | |
93446edc CL |
2474 | |
2475 | _error: | |
2476 | snd_usb_mixer_free(mixer); | |
2477 | return err; | |
84957a8a CL |
2478 | } |
2479 | ||
a6cece9d | 2480 | void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer) |
84957a8a | 2481 | { |
68df9de1 MK |
2482 | usb_kill_urb(mixer->urb); |
2483 | usb_kill_urb(mixer->rc_urb); | |
84957a8a | 2484 | } |
400362f1 TI |
2485 | |
2486 | #ifdef CONFIG_PM | |
2487 | /* stop any bus activity of a mixer */ | |
2488 | static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) | |
2489 | { | |
2490 | usb_kill_urb(mixer->urb); | |
2491 | usb_kill_urb(mixer->rc_urb); | |
2492 | } | |
2493 | ||
2494 | static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) | |
2495 | { | |
2496 | int err; | |
2497 | ||
2498 | if (mixer->urb) { | |
2499 | err = usb_submit_urb(mixer->urb, GFP_NOIO); | |
2500 | if (err < 0) | |
2501 | return err; | |
2502 | } | |
2503 | ||
2504 | return 0; | |
2505 | } | |
2506 | ||
2507 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) | |
2508 | { | |
2509 | snd_usb_mixer_inactivate(mixer); | |
2510 | return 0; | |
2511 | } | |
2512 | ||
2513 | static int restore_mixer_value(struct usb_mixer_elem_info *cval) | |
2514 | { | |
2515 | int c, err, idx; | |
2516 | ||
2517 | if (cval->cmask) { | |
2518 | idx = 0; | |
2519 | for (c = 0; c < MAX_CHANNELS; c++) { | |
2520 | if (!(cval->cmask & (1 << c))) | |
2521 | continue; | |
2522 | if (cval->cached & (1 << c)) { | |
eef90451 | 2523 | err = snd_usb_set_cur_mix_value(cval, c + 1, idx, |
400362f1 TI |
2524 | cval->cache_val[idx]); |
2525 | if (err < 0) | |
2526 | return err; | |
2527 | } | |
2528 | idx++; | |
2529 | } | |
2530 | } else { | |
2531 | /* master */ | |
2532 | if (cval->cached) { | |
eef90451 | 2533 | err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val); |
400362f1 TI |
2534 | if (err < 0) |
2535 | return err; | |
2536 | } | |
2537 | } | |
2538 | ||
2539 | return 0; | |
2540 | } | |
2541 | ||
2542 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) | |
2543 | { | |
2544 | struct usb_mixer_elem_info *cval; | |
2545 | int id, err; | |
2546 | ||
2547 | /* FIXME: any mixer quirks? */ | |
2548 | ||
2549 | if (reset_resume) { | |
2550 | /* restore cached mixer values */ | |
2551 | for (id = 0; id < MAX_ID_ELEMS; id++) { | |
2552 | for (cval = mixer->id_elems[id]; cval; | |
2553 | cval = cval->next_id_elem) { | |
2554 | err = restore_mixer_value(cval); | |
2555 | if (err < 0) | |
2556 | return err; | |
2557 | } | |
2558 | } | |
2559 | } | |
2560 | ||
2561 | return snd_usb_mixer_activate(mixer); | |
2562 | } | |
2563 | #endif |