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" |
4d1a70da | 64 | |
ebfdeea3 JK |
65 | #define MAX_ID_ELEMS 256 |
66 | ||
1da177e4 LT |
67 | struct usb_audio_term { |
68 | int id; | |
69 | int type; | |
70 | int channels; | |
71 | unsigned int chconfig; | |
72 | int name; | |
73 | }; | |
74 | ||
75 | struct usbmix_name_map; | |
76 | ||
86e07d34 TI |
77 | struct mixer_build { |
78 | struct snd_usb_audio *chip; | |
84957a8a | 79 | struct usb_mixer_interface *mixer; |
1da177e4 LT |
80 | unsigned char *buffer; |
81 | unsigned int buflen; | |
291186e0 | 82 | DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); |
86e07d34 | 83 | struct usb_audio_term oterm; |
1da177e4 | 84 | const struct usbmix_name_map *map; |
8e062ec7 | 85 | const struct usbmix_selector_map *selector_map; |
1da177e4 LT |
86 | }; |
87 | ||
1da177e4 LT |
88 | enum { |
89 | USB_MIXER_BOOLEAN, | |
90 | USB_MIXER_INV_BOOLEAN, | |
91 | USB_MIXER_S8, | |
92 | USB_MIXER_U8, | |
93 | USB_MIXER_S16, | |
94 | USB_MIXER_U16, | |
95 | }; | |
96 | ||
1da177e4 | 97 | |
7d2b451e SK |
98 | /*E-mu 0202(0404) eXtension Unit(XU) control*/ |
99 | enum { | |
100 | USB_XU_CLOCK_RATE = 0xe301, | |
101 | USB_XU_CLOCK_SOURCE = 0xe302, | |
102 | USB_XU_DIGITAL_IO_STATUS = 0xe303, | |
103 | USB_XU_DEVICE_OPTIONS = 0xe304, | |
104 | USB_XU_DIRECT_MONITORING = 0xe305, | |
105 | USB_XU_METERING = 0xe306 | |
106 | }; | |
107 | enum { | |
108 | USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ | |
109 | USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ | |
110 | USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ | |
111 | USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ | |
112 | }; | |
1da177e4 LT |
113 | |
114 | /* | |
115 | * manual mapping of mixer names | |
116 | * if the mixer topology is too complicated and the parsed names are | |
117 | * ambiguous, add the entries in usbmixer_maps.c. | |
118 | */ | |
f0b5e634 | 119 | #include "mixer_maps.c" |
1da177e4 | 120 | |
c3a3e040 JK |
121 | static const struct usbmix_name_map * |
122 | find_map(struct mixer_build *state, int unitid, int control) | |
1da177e4 | 123 | { |
c3a3e040 | 124 | const struct usbmix_name_map *p = state->map; |
1da177e4 | 125 | |
c3a3e040 JK |
126 | if (!p) |
127 | return NULL; | |
1da177e4 LT |
128 | |
129 | for (p = state->map; p->id; p++) { | |
c3a3e040 JK |
130 | if (p->id == unitid && |
131 | (!control || !p->control || control == p->control)) | |
132 | return p; | |
1da177e4 | 133 | } |
c3a3e040 | 134 | return NULL; |
1da177e4 LT |
135 | } |
136 | ||
c3a3e040 JK |
137 | /* get the mapped name if the unit matches */ |
138 | static int | |
139 | check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) | |
1da177e4 | 140 | { |
c3a3e040 JK |
141 | if (!p || !p->name) |
142 | return 0; | |
1da177e4 | 143 | |
c3a3e040 JK |
144 | buflen--; |
145 | return strlcpy(buf, p->name, buflen); | |
146 | } | |
147 | ||
148 | /* check whether the control should be ignored */ | |
149 | static inline int | |
150 | check_ignored_ctl(const struct usbmix_name_map *p) | |
151 | { | |
152 | if (!p || p->name || p->dB) | |
1da177e4 | 153 | return 0; |
c3a3e040 JK |
154 | return 1; |
155 | } | |
156 | ||
157 | /* dB mapping */ | |
158 | static inline void check_mapped_dB(const struct usbmix_name_map *p, | |
159 | struct usb_mixer_elem_info *cval) | |
160 | { | |
161 | if (p && p->dB) { | |
162 | cval->dBmin = p->dB->min; | |
163 | cval->dBmax = p->dB->max; | |
1da177e4 | 164 | } |
1da177e4 LT |
165 | } |
166 | ||
8e062ec7 | 167 | /* get the mapped selector source name */ |
86e07d34 | 168 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
169 | int index, char *buf, int buflen) |
170 | { | |
171 | const struct usbmix_selector_map *p; | |
172 | ||
173 | if (! state->selector_map) | |
174 | return 0; | |
175 | for (p = state->selector_map; p->id; p++) { | |
176 | if (p->id == unitid && index < p->count) | |
177 | return strlcpy(buf, p->names[index], buflen); | |
178 | } | |
179 | return 0; | |
180 | } | |
181 | ||
1da177e4 LT |
182 | /* |
183 | * find an audio control unit with the given unit id | |
184 | */ | |
86e07d34 | 185 | static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) |
1da177e4 | 186 | { |
67e1daa0 DM |
187 | /* we just parse the header */ |
188 | struct uac_feature_unit_descriptor *hdr = NULL; | |
189 | ||
190 | while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, | |
191 | USB_DT_CS_INTERFACE)) != NULL) { | |
192 | if (hdr->bLength >= 4 && | |
193 | hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && | |
194 | hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && | |
195 | hdr->bUnitID == unit) | |
196 | return hdr; | |
1da177e4 | 197 | } |
67e1daa0 | 198 | |
1da177e4 LT |
199 | return NULL; |
200 | } | |
201 | ||
1da177e4 LT |
202 | /* |
203 | * copy a string with the given id | |
204 | */ | |
86e07d34 | 205 | static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) |
1da177e4 LT |
206 | { |
207 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
208 | buf[len] = 0; | |
209 | return len; | |
210 | } | |
211 | ||
212 | /* | |
213 | * convert from the byte/word on usb descriptor to the zero-based integer | |
214 | */ | |
86e07d34 | 215 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
216 | { |
217 | switch (cval->val_type) { | |
218 | case USB_MIXER_BOOLEAN: | |
219 | return !!val; | |
220 | case USB_MIXER_INV_BOOLEAN: | |
221 | return !val; | |
222 | case USB_MIXER_U8: | |
223 | val &= 0xff; | |
224 | break; | |
225 | case USB_MIXER_S8: | |
226 | val &= 0xff; | |
227 | if (val >= 0x80) | |
228 | val -= 0x100; | |
229 | break; | |
230 | case USB_MIXER_U16: | |
231 | val &= 0xffff; | |
232 | break; | |
233 | case USB_MIXER_S16: | |
234 | val &= 0xffff; | |
235 | if (val >= 0x8000) | |
236 | val -= 0x10000; | |
237 | break; | |
238 | } | |
239 | return val; | |
240 | } | |
241 | ||
242 | /* | |
243 | * convert from the zero-based int to the byte/word for usb descriptor | |
244 | */ | |
86e07d34 | 245 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
246 | { |
247 | switch (cval->val_type) { | |
248 | case USB_MIXER_BOOLEAN: | |
249 | return !!val; | |
250 | case USB_MIXER_INV_BOOLEAN: | |
251 | return !val; | |
252 | case USB_MIXER_S8: | |
253 | case USB_MIXER_U8: | |
254 | return val & 0xff; | |
255 | case USB_MIXER_S16: | |
256 | case USB_MIXER_U16: | |
257 | return val & 0xffff; | |
258 | } | |
259 | return 0; /* not reached */ | |
260 | } | |
261 | ||
86e07d34 | 262 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
263 | { |
264 | if (! cval->res) | |
265 | cval->res = 1; | |
266 | if (val < cval->min) | |
267 | return 0; | |
14790f1c TI |
268 | else if (val >= cval->max) |
269 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
270 | else |
271 | return (val - cval->min) / cval->res; | |
272 | } | |
273 | ||
86e07d34 | 274 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
275 | { |
276 | if (val < 0) | |
277 | return cval->min; | |
278 | if (! cval->res) | |
279 | cval->res = 1; | |
280 | val *= cval->res; | |
281 | val += cval->min; | |
282 | if (val > cval->max) | |
283 | return cval->max; | |
284 | return val; | |
285 | } | |
286 | ||
287 | ||
288 | /* | |
289 | * retrieve a mixer value | |
290 | */ | |
291 | ||
23caaf19 | 292 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
1da177e4 LT |
293 | { |
294 | unsigned char buf[2]; | |
295 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
296 | int timeout = 10; | |
297 | ||
298 | while (timeout-- > 0) { | |
84957a8a CL |
299 | if (snd_usb_ctl_msg(cval->mixer->chip->dev, |
300 | usb_rcvctrlpipe(cval->mixer->chip->dev, 0), | |
1da177e4 LT |
301 | request, |
302 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
84957a8a | 303 | validx, cval->mixer->ctrlif | (cval->id << 8), |
a04395ea | 304 | buf, val_len, 100) >= val_len) { |
1da177e4 LT |
305 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
306 | return 0; | |
307 | } | |
308 | } | |
84957a8a CL |
309 | snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
310 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); | |
1da177e4 LT |
311 | return -EINVAL; |
312 | } | |
313 | ||
23caaf19 DM |
314 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
315 | { | |
e8bdb6bb | 316 | unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ |
23caaf19 | 317 | unsigned char *val; |
e8bdb6bb | 318 | int ret, size; |
23caaf19 DM |
319 | __u8 bRequest; |
320 | ||
e8bdb6bb DM |
321 | if (request == UAC_GET_CUR) { |
322 | bRequest = UAC2_CS_CUR; | |
323 | size = sizeof(__u16); | |
324 | } else { | |
325 | bRequest = UAC2_CS_RANGE; | |
326 | size = sizeof(buf); | |
327 | } | |
328 | ||
329 | memset(buf, 0, sizeof(buf)); | |
23caaf19 DM |
330 | |
331 | ret = snd_usb_ctl_msg(cval->mixer->chip->dev, | |
332 | usb_rcvctrlpipe(cval->mixer->chip->dev, 0), | |
333 | bRequest, | |
334 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
335 | validx, cval->mixer->ctrlif | (cval->id << 8), | |
e8bdb6bb | 336 | buf, size, 1000); |
23caaf19 DM |
337 | |
338 | if (ret < 0) { | |
09414207 DM |
339 | snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
340 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); | |
23caaf19 DM |
341 | return ret; |
342 | } | |
343 | ||
e8bdb6bb DM |
344 | /* FIXME: how should we handle multiple triplets here? */ |
345 | ||
23caaf19 DM |
346 | switch (request) { |
347 | case UAC_GET_CUR: | |
348 | val = buf; | |
349 | break; | |
350 | case UAC_GET_MIN: | |
351 | val = buf + sizeof(__u16); | |
352 | break; | |
353 | case UAC_GET_MAX: | |
354 | val = buf + sizeof(__u16) * 2; | |
355 | break; | |
356 | case UAC_GET_RES: | |
357 | val = buf + sizeof(__u16) * 3; | |
358 | break; | |
359 | default: | |
360 | return -EINVAL; | |
361 | } | |
362 | ||
363 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); | |
364 | ||
365 | return 0; | |
366 | } | |
367 | ||
368 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) | |
369 | { | |
370 | return (cval->mixer->protocol == UAC_VERSION_1) ? | |
371 | get_ctl_value_v1(cval, request, validx, value_ret) : | |
372 | get_ctl_value_v2(cval, request, validx, value_ret); | |
373 | } | |
374 | ||
86e07d34 | 375 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) |
1da177e4 | 376 | { |
de48c7bc | 377 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
378 | } |
379 | ||
380 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
381 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
382 | int channel, int *value) | |
1da177e4 | 383 | { |
de48c7bc | 384 | return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); |
1da177e4 LT |
385 | } |
386 | ||
641b4879 TI |
387 | static int get_cur_mix_value(struct usb_mixer_elem_info *cval, |
388 | int channel, int index, int *value) | |
389 | { | |
390 | int err; | |
391 | ||
392 | if (cval->cached & (1 << channel)) { | |
393 | *value = cval->cache_val[index]; | |
394 | return 0; | |
395 | } | |
396 | err = get_cur_mix_raw(cval, channel, value); | |
397 | if (err < 0) { | |
398 | if (!cval->mixer->ignore_ctl_error) | |
23caaf19 | 399 | snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", |
641b4879 TI |
400 | cval->control, channel, err); |
401 | return err; | |
402 | } | |
403 | cval->cached |= 1 << channel; | |
404 | cval->cache_val[index] = *value; | |
405 | return 0; | |
406 | } | |
407 | ||
408 | ||
1da177e4 LT |
409 | /* |
410 | * set a mixer value | |
411 | */ | |
412 | ||
7b1eda22 DM |
413 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
414 | int request, int validx, int value_set) | |
1da177e4 LT |
415 | { |
416 | unsigned char buf[2]; | |
23caaf19 DM |
417 | int val_len, timeout = 10; |
418 | ||
419 | if (cval->mixer->protocol == UAC_VERSION_1) { | |
420 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
421 | } else { /* UAC_VERSION_2 */ | |
422 | /* audio class v2 controls are always 2 bytes in size */ | |
423 | val_len = sizeof(__u16); | |
424 | ||
425 | /* FIXME */ | |
426 | if (request != UAC_SET_CUR) { | |
427 | snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); | |
428 | return -EINVAL; | |
429 | } | |
430 | ||
431 | request = UAC2_CS_CUR; | |
432 | } | |
1da177e4 LT |
433 | |
434 | value_set = convert_bytes_value(cval, value_set); | |
435 | buf[0] = value_set & 0xff; | |
436 | buf[1] = (value_set >> 8) & 0xff; | |
cf3f9130 | 437 | while (timeout-- > 0) |
84957a8a CL |
438 | if (snd_usb_ctl_msg(cval->mixer->chip->dev, |
439 | usb_sndctrlpipe(cval->mixer->chip->dev, 0), | |
1da177e4 LT |
440 | request, |
441 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | |
84957a8a | 442 | validx, cval->mixer->ctrlif | (cval->id << 8), |
1da177e4 LT |
443 | buf, val_len, 100) >= 0) |
444 | return 0; | |
84957a8a CL |
445 | snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
446 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type, buf[0], buf[1]); | |
1da177e4 LT |
447 | return -EINVAL; |
448 | } | |
449 | ||
86e07d34 | 450 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) |
1da177e4 | 451 | { |
7b1eda22 | 452 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
453 | } |
454 | ||
641b4879 TI |
455 | static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
456 | int index, int value) | |
1da177e4 | 457 | { |
641b4879 | 458 | int err; |
a6a33259 DM |
459 | unsigned int read_only = (channel == 0) ? |
460 | cval->master_readonly : | |
461 | cval->ch_readonly & (1 << (channel - 1)); | |
462 | ||
463 | if (read_only) { | |
464 | snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", | |
465 | __func__, channel, cval->control); | |
466 | return 0; | |
467 | } | |
468 | ||
7b1eda22 | 469 | err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, |
641b4879 TI |
470 | value); |
471 | if (err < 0) | |
472 | return err; | |
473 | cval->cached |= 1 << channel; | |
474 | cval->cache_val[index] = value; | |
475 | return 0; | |
1da177e4 LT |
476 | } |
477 | ||
7bc5ba7e TI |
478 | /* |
479 | * TLV callback for mixer volume controls | |
480 | */ | |
481 | static int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, | |
482 | unsigned int size, unsigned int __user *_tlv) | |
483 | { | |
484 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 485 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
486 | |
487 | if (size < sizeof(scale)) | |
488 | return -ENOMEM; | |
c3a3e040 JK |
489 | scale[2] = cval->dBmin; |
490 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
491 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
492 | return -EFAULT; | |
493 | return 0; | |
494 | } | |
1da177e4 LT |
495 | |
496 | /* | |
497 | * parser routines begin here... | |
498 | */ | |
499 | ||
86e07d34 | 500 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
501 | |
502 | ||
503 | /* | |
504 | * check if the input/output channel routing is enabled on the given bitmap. | |
505 | * used for mixer unit parser | |
506 | */ | |
507 | static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) | |
508 | { | |
509 | int idx = ich * num_outs + och; | |
510 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
511 | } | |
512 | ||
513 | ||
514 | /* | |
515 | * add an alsa control element | |
516 | * search and increment the index until an empty slot is found. | |
517 | * | |
518 | * if failed, give up and free the control instance. | |
519 | */ | |
520 | ||
86e07d34 | 521 | static int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl) |
1da177e4 | 522 | { |
86e07d34 | 523 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 524 | int err; |
84957a8a CL |
525 | |
526 | while (snd_ctl_find_id(state->chip->card, &kctl->id)) | |
1da177e4 | 527 | kctl->id.index++; |
84957a8a | 528 | if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) { |
1da177e4 | 529 | snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); |
6639b6c2 | 530 | return err; |
1da177e4 | 531 | } |
6639b6c2 CL |
532 | cval->elem_id = &kctl->id; |
533 | cval->next_id_elem = state->mixer->id_elems[cval->id]; | |
534 | state->mixer->id_elems[cval->id] = cval; | |
535 | return 0; | |
1da177e4 LT |
536 | } |
537 | ||
538 | ||
539 | /* | |
540 | * get a terminal name string | |
541 | */ | |
542 | ||
543 | static struct iterm_name_combo { | |
544 | int type; | |
545 | char *name; | |
546 | } iterm_names[] = { | |
547 | { 0x0300, "Output" }, | |
548 | { 0x0301, "Speaker" }, | |
549 | { 0x0302, "Headphone" }, | |
550 | { 0x0303, "HMD Audio" }, | |
551 | { 0x0304, "Desktop Speaker" }, | |
552 | { 0x0305, "Room Speaker" }, | |
553 | { 0x0306, "Com Speaker" }, | |
554 | { 0x0307, "LFE" }, | |
555 | { 0x0600, "External In" }, | |
556 | { 0x0601, "Analog In" }, | |
557 | { 0x0602, "Digital In" }, | |
558 | { 0x0603, "Line" }, | |
559 | { 0x0604, "Legacy In" }, | |
560 | { 0x0605, "IEC958 In" }, | |
561 | { 0x0606, "1394 DA Stream" }, | |
562 | { 0x0607, "1394 DV Stream" }, | |
563 | { 0x0700, "Embedded" }, | |
564 | { 0x0701, "Noise Source" }, | |
565 | { 0x0702, "Equalization Noise" }, | |
566 | { 0x0703, "CD" }, | |
567 | { 0x0704, "DAT" }, | |
568 | { 0x0705, "DCC" }, | |
569 | { 0x0706, "MiniDisk" }, | |
570 | { 0x0707, "Analog Tape" }, | |
571 | { 0x0708, "Phonograph" }, | |
572 | { 0x0709, "VCR Audio" }, | |
573 | { 0x070a, "Video Disk Audio" }, | |
574 | { 0x070b, "DVD Audio" }, | |
575 | { 0x070c, "TV Tuner Audio" }, | |
576 | { 0x070d, "Satellite Rec Audio" }, | |
577 | { 0x070e, "Cable Tuner Audio" }, | |
578 | { 0x070f, "DSS Audio" }, | |
579 | { 0x0710, "Radio Receiver" }, | |
580 | { 0x0711, "Radio Transmitter" }, | |
581 | { 0x0712, "Multi-Track Recorder" }, | |
582 | { 0x0713, "Synthesizer" }, | |
583 | { 0 }, | |
584 | }; | |
585 | ||
86e07d34 | 586 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
587 | unsigned char *name, int maxlen, int term_only) |
588 | { | |
589 | struct iterm_name_combo *names; | |
590 | ||
591 | if (iterm->name) | |
592 | return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); | |
593 | ||
594 | /* virtual type - not a real terminal */ | |
595 | if (iterm->type >> 16) { | |
596 | if (term_only) | |
597 | return 0; | |
598 | switch (iterm->type >> 16) { | |
de48c7bc | 599 | case UAC_SELECTOR_UNIT: |
1da177e4 | 600 | strcpy(name, "Selector"); return 8; |
69da9bcb | 601 | case UAC1_PROCESSING_UNIT: |
1da177e4 | 602 | strcpy(name, "Process Unit"); return 12; |
69da9bcb | 603 | case UAC1_EXTENSION_UNIT: |
1da177e4 | 604 | strcpy(name, "Ext Unit"); return 8; |
de48c7bc | 605 | case UAC_MIXER_UNIT: |
1da177e4 LT |
606 | strcpy(name, "Mixer"); return 5; |
607 | default: | |
608 | return sprintf(name, "Unit %d", iterm->id); | |
609 | } | |
610 | } | |
611 | ||
612 | switch (iterm->type & 0xff00) { | |
613 | case 0x0100: | |
614 | strcpy(name, "PCM"); return 3; | |
615 | case 0x0200: | |
616 | strcpy(name, "Mic"); return 3; | |
617 | case 0x0400: | |
618 | strcpy(name, "Headset"); return 7; | |
619 | case 0x0500: | |
620 | strcpy(name, "Phone"); return 5; | |
621 | } | |
622 | ||
623 | for (names = iterm_names; names->type; names++) | |
624 | if (names->type == iterm->type) { | |
625 | strcpy(name, names->name); | |
626 | return strlen(names->name); | |
627 | } | |
628 | return 0; | |
629 | } | |
630 | ||
631 | ||
632 | /* | |
633 | * parse the source unit recursively until it reaches to a terminal | |
634 | * or a branched unit. | |
635 | */ | |
86e07d34 | 636 | static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) |
1da177e4 | 637 | { |
09414207 | 638 | int err; |
23caaf19 | 639 | void *p1; |
1da177e4 LT |
640 | |
641 | memset(term, 0, sizeof(*term)); | |
642 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 643 | unsigned char *hdr = p1; |
1da177e4 | 644 | term->id = id; |
23caaf19 | 645 | switch (hdr[2]) { |
de48c7bc | 646 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
647 | if (state->mixer->protocol == UAC_VERSION_1) { |
648 | struct uac_input_terminal_descriptor *d = p1; | |
649 | term->type = le16_to_cpu(d->wTerminalType); | |
650 | term->channels = d->bNrChannels; | |
651 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
652 | term->name = d->iTerminal; | |
653 | } else { /* UAC_VERSION_2 */ | |
654 | struct uac2_input_terminal_descriptor *d = p1; | |
655 | term->type = le16_to_cpu(d->wTerminalType); | |
656 | term->channels = d->bNrChannels; | |
657 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
658 | term->name = d->iTerminal; | |
09414207 DM |
659 | |
660 | /* call recursively to get the clock selectors */ | |
661 | err = check_input_term(state, d->bCSourceID, term); | |
662 | if (err < 0) | |
663 | return err; | |
23caaf19 | 664 | } |
1da177e4 | 665 | return 0; |
23caaf19 DM |
666 | case UAC_FEATURE_UNIT: { |
667 | /* the header is the same for v1 and v2 */ | |
668 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 669 | id = d->bSourceID; |
1da177e4 | 670 | break; /* continue to parse */ |
23caaf19 DM |
671 | } |
672 | case UAC_MIXER_UNIT: { | |
673 | struct uac_mixer_unit_descriptor *d = p1; | |
674 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
675 | term->channels = uac_mixer_unit_bNrChannels(d); | |
676 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
677 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 678 | return 0; |
23caaf19 | 679 | } |
09414207 DM |
680 | case UAC_SELECTOR_UNIT: |
681 | case UAC2_CLOCK_SELECTOR: { | |
23caaf19 | 682 | struct uac_selector_unit_descriptor *d = p1; |
1da177e4 | 683 | /* call recursively to retrieve the channel info */ |
23caaf19 | 684 | if (check_input_term(state, d->baSourceID[0], term) < 0) |
1da177e4 | 685 | return -ENODEV; |
23caaf19 | 686 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 687 | term->id = id; |
23caaf19 | 688 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 689 | return 0; |
23caaf19 | 690 | } |
69da9bcb DM |
691 | case UAC1_PROCESSING_UNIT: |
692 | case UAC1_EXTENSION_UNIT: { | |
23caaf19 DM |
693 | struct uac_processing_unit_descriptor *d = p1; |
694 | if (d->bNrInPins) { | |
695 | id = d->baSourceID[0]; | |
1da177e4 LT |
696 | break; /* continue to parse */ |
697 | } | |
23caaf19 DM |
698 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
699 | term->channels = uac_processing_unit_bNrChannels(d); | |
700 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
701 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 702 | return 0; |
23caaf19 | 703 | } |
09414207 DM |
704 | case UAC2_CLOCK_SOURCE: { |
705 | struct uac_clock_source_descriptor *d = p1; | |
706 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
707 | term->id = id; | |
708 | term->name = d->iClockSource; | |
709 | return 0; | |
710 | } | |
1da177e4 LT |
711 | default: |
712 | return -ENODEV; | |
713 | } | |
714 | } | |
715 | return -ENODEV; | |
716 | } | |
717 | ||
718 | ||
719 | /* | |
720 | * Feature Unit | |
721 | */ | |
722 | ||
723 | /* feature unit control information */ | |
724 | struct usb_feature_control_info { | |
725 | const char *name; | |
726 | unsigned int type; /* control type (mute, volume, etc.) */ | |
727 | }; | |
728 | ||
729 | static struct usb_feature_control_info audio_feature_info[] = { | |
2e0281d1 DM |
730 | { "Mute", USB_MIXER_INV_BOOLEAN }, |
731 | { "Volume", USB_MIXER_S16 }, | |
1da177e4 LT |
732 | { "Tone Control - Bass", USB_MIXER_S8 }, |
733 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
734 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
735 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
2e0281d1 DM |
736 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, |
737 | { "Delay Control", USB_MIXER_U16 }, | |
738 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
739 | { "Loudness", USB_MIXER_BOOLEAN }, | |
740 | /* UAC2 specific */ | |
741 | { "Input Gain Control", USB_MIXER_U16 }, | |
742 | { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, | |
743 | { "Phase Inverter Control", USB_MIXER_BOOLEAN }, | |
1da177e4 LT |
744 | }; |
745 | ||
746 | ||
747 | /* private_free callback */ | |
86e07d34 | 748 | static void usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 749 | { |
4d572776 JJ |
750 | kfree(kctl->private_data); |
751 | kctl->private_data = NULL; | |
1da177e4 LT |
752 | } |
753 | ||
754 | ||
755 | /* | |
756 | * interface to ALSA control for feature/mixer units | |
757 | */ | |
758 | ||
759 | /* | |
760 | * retrieve the minimum and maximum values for the specified control | |
761 | */ | |
86e07d34 | 762 | static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) |
1da177e4 LT |
763 | { |
764 | /* for failsafe */ | |
765 | cval->min = default_min; | |
766 | cval->max = cval->min + 1; | |
767 | cval->res = 1; | |
c3a3e040 | 768 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
769 | |
770 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
771 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
772 | cval->initialized = 1; | |
773 | } else { | |
774 | int minchn = 0; | |
775 | if (cval->cmask) { | |
776 | int i; | |
777 | for (i = 0; i < MAX_CHANNELS; i++) | |
778 | if (cval->cmask & (1 << i)) { | |
779 | minchn = i + 1; | |
780 | break; | |
781 | } | |
782 | } | |
de48c7bc DM |
783 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
784 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
84957a8a CL |
785 | snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", |
786 | cval->id, cval->mixer->ctrlif, cval->control, cval->id); | |
1da177e4 LT |
787 | return -EINVAL; |
788 | } | |
de48c7bc | 789 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { |
1da177e4 LT |
790 | cval->res = 1; |
791 | } else { | |
792 | int last_valid_res = cval->res; | |
793 | ||
794 | while (cval->res > 1) { | |
7b1eda22 DM |
795 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
796 | (cval->control << 8) | minchn, cval->res / 2) < 0) | |
1da177e4 LT |
797 | break; |
798 | cval->res /= 2; | |
799 | } | |
de48c7bc | 800 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) |
1da177e4 LT |
801 | cval->res = last_valid_res; |
802 | } | |
803 | if (cval->res == 0) | |
804 | cval->res = 1; | |
14790f1c TI |
805 | |
806 | /* Additional checks for the proper resolution | |
807 | * | |
808 | * Some devices report smaller resolutions than actually | |
809 | * reacting. They don't return errors but simply clip | |
810 | * to the lower aligned value. | |
811 | */ | |
812 | if (cval->min + cval->res < cval->max) { | |
813 | int last_valid_res = cval->res; | |
814 | int saved, test, check; | |
641b4879 | 815 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
816 | for (;;) { |
817 | test = saved; | |
818 | if (test < cval->max) | |
819 | test += cval->res; | |
820 | else | |
821 | test -= cval->res; | |
822 | if (test < cval->min || test > cval->max || | |
641b4879 TI |
823 | set_cur_mix_value(cval, minchn, 0, test) || |
824 | get_cur_mix_raw(cval, minchn, &check)) { | |
14790f1c TI |
825 | cval->res = last_valid_res; |
826 | break; | |
827 | } | |
828 | if (test == check) | |
829 | break; | |
830 | cval->res *= 2; | |
831 | } | |
641b4879 | 832 | set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
833 | } |
834 | ||
1da177e4 LT |
835 | cval->initialized = 1; |
836 | } | |
c3a3e040 JK |
837 | |
838 | /* USB descriptions contain the dB scale in 1/256 dB unit | |
839 | * while ALSA TLV contains in 1/100 dB unit | |
840 | */ | |
841 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
842 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
843 | if (cval->dBmin > cval->dBmax) { | |
844 | /* something is wrong; assume it's either from/to 0dB */ | |
845 | if (cval->dBmin < 0) | |
846 | cval->dBmax = 0; | |
847 | else if (cval->dBmin > 0) | |
848 | cval->dBmin = 0; | |
849 | if (cval->dBmin > cval->dBmax) { | |
850 | /* totally crap, return an error */ | |
851 | return -EINVAL; | |
852 | } | |
853 | } | |
854 | ||
1da177e4 LT |
855 | return 0; |
856 | } | |
857 | ||
858 | ||
859 | /* get a feature/mixer unit info */ | |
86e07d34 | 860 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 861 | { |
86e07d34 | 862 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
863 | |
864 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
865 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
866 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
867 | else | |
868 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
869 | uinfo->count = cval->channels; | |
870 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
871 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
872 | uinfo->value.integer.min = 0; | |
873 | uinfo->value.integer.max = 1; | |
874 | } else { | |
875 | if (! cval->initialized) | |
876 | get_min_max(cval, 0); | |
877 | uinfo->value.integer.min = 0; | |
14790f1c TI |
878 | uinfo->value.integer.max = |
879 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
880 | } |
881 | return 0; | |
882 | } | |
883 | ||
884 | /* get the current value from feature/mixer unit */ | |
86e07d34 | 885 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 886 | { |
86e07d34 | 887 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
888 | int c, cnt, val, err; |
889 | ||
641b4879 | 890 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
891 | if (cval->cmask) { |
892 | cnt = 0; | |
893 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
894 | if (!(cval->cmask & (1 << c))) |
895 | continue; | |
896 | err = get_cur_mix_value(cval, c + 1, cnt, &val); | |
897 | if (err < 0) | |
898 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
899 | val = get_relative_value(cval, val); | |
900 | ucontrol->value.integer.value[cnt] = val; | |
901 | cnt++; | |
1da177e4 | 902 | } |
641b4879 | 903 | return 0; |
1da177e4 LT |
904 | } else { |
905 | /* master channel */ | |
641b4879 TI |
906 | err = get_cur_mix_value(cval, 0, 0, &val); |
907 | if (err < 0) | |
908 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1da177e4 LT |
909 | val = get_relative_value(cval, val); |
910 | ucontrol->value.integer.value[0] = val; | |
911 | } | |
912 | return 0; | |
913 | } | |
914 | ||
915 | /* put the current value to feature/mixer unit */ | |
86e07d34 | 916 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 917 | { |
86e07d34 | 918 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
919 | int c, cnt, val, oval, err; |
920 | int changed = 0; | |
921 | ||
922 | if (cval->cmask) { | |
923 | cnt = 0; | |
924 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
925 | if (!(cval->cmask & (1 << c))) |
926 | continue; | |
927 | err = get_cur_mix_value(cval, c + 1, cnt, &oval); | |
928 | if (err < 0) | |
929 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
930 | val = ucontrol->value.integer.value[cnt]; | |
931 | val = get_abs_value(cval, val); | |
932 | if (oval != val) { | |
933 | set_cur_mix_value(cval, c + 1, cnt, val); | |
934 | changed = 1; | |
1da177e4 | 935 | } |
641b4879 | 936 | cnt++; |
1da177e4 LT |
937 | } |
938 | } else { | |
939 | /* master channel */ | |
641b4879 | 940 | err = get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 941 | if (err < 0) |
641b4879 | 942 | return cval->mixer->ignore_ctl_error ? 0 : err; |
1da177e4 LT |
943 | val = ucontrol->value.integer.value[0]; |
944 | val = get_abs_value(cval, val); | |
945 | if (val != oval) { | |
641b4879 | 946 | set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
947 | changed = 1; |
948 | } | |
949 | } | |
950 | return changed; | |
951 | } | |
952 | ||
86e07d34 | 953 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
954 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
955 | .name = "", /* will be filled later manually */ | |
956 | .info = mixer_ctl_feature_info, | |
957 | .get = mixer_ctl_feature_get, | |
958 | .put = mixer_ctl_feature_put, | |
959 | }; | |
960 | ||
23caaf19 DM |
961 | /* the read-only variant */ |
962 | static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { | |
963 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
964 | .name = "", /* will be filled later manually */ | |
965 | .info = mixer_ctl_feature_info, | |
966 | .get = mixer_ctl_feature_get, | |
967 | .put = NULL, | |
968 | }; | |
969 | ||
1da177e4 LT |
970 | |
971 | /* | |
972 | * build a feature control | |
973 | */ | |
974 | ||
08d1e635 TI |
975 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
976 | { | |
977 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
978 | } | |
979 | ||
99fc8645 | 980 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 981 | unsigned int ctl_mask, int control, |
23caaf19 | 982 | struct usb_audio_term *iterm, int unitid, |
a6a33259 | 983 | int readonly_mask) |
1da177e4 | 984 | { |
99fc8645 | 985 | struct uac_feature_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
986 | unsigned int len = 0; |
987 | int mapped_name = 0; | |
99fc8645 | 988 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
989 | struct snd_kcontrol *kctl; |
990 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 991 | const struct usbmix_name_map *map; |
1da177e4 LT |
992 | |
993 | control++; /* change from zero-based to 1-based value */ | |
994 | ||
65f25da4 | 995 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
996 | /* FIXME: not supported yet */ |
997 | return; | |
998 | } | |
999 | ||
c3a3e040 JK |
1000 | map = find_map(state, unitid, control); |
1001 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1002 | return; |
1003 | ||
561b220a | 1004 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1005 | if (! cval) { |
1006 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1007 | return; | |
1008 | } | |
84957a8a | 1009 | cval->mixer = state->mixer; |
1da177e4 LT |
1010 | cval->id = unitid; |
1011 | cval->control = control; | |
1012 | cval->cmask = ctl_mask; | |
1013 | cval->val_type = audio_feature_info[control-1].type; | |
a6a33259 | 1014 | if (ctl_mask == 0) { |
1da177e4 | 1015 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
1016 | cval->master_readonly = readonly_mask; |
1017 | } else { | |
1da177e4 LT |
1018 | int i, c = 0; |
1019 | for (i = 0; i < 16; i++) | |
1020 | if (ctl_mask & (1 << i)) | |
1021 | c++; | |
1022 | cval->channels = c; | |
a6a33259 | 1023 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
1024 | } |
1025 | ||
1026 | /* get min/max values */ | |
1027 | get_min_max(cval, 0); | |
1028 | ||
a6a33259 DM |
1029 | /* if all channels in the mask are marked read-only, make the control |
1030 | * read-only. set_cur_mix_value() will check the mask again and won't | |
1031 | * issue write commands to read-only channels. */ | |
1032 | if (cval->channels == readonly_mask) | |
23caaf19 DM |
1033 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1034 | else | |
1035 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1036 | ||
1da177e4 LT |
1037 | if (! kctl) { |
1038 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1039 | kfree(cval); | |
1040 | return; | |
1041 | } | |
1042 | kctl->private_free = usb_mixer_elem_free; | |
1043 | ||
c3a3e040 | 1044 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1045 | mapped_name = len != 0; |
1046 | if (! len && nameid) | |
c3a3e040 JK |
1047 | len = snd_usb_copy_string_desc(state, nameid, |
1048 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
1049 | |
1050 | switch (control) { | |
65f25da4 DM |
1051 | case UAC_FU_MUTE: |
1052 | case UAC_FU_VOLUME: | |
1da177e4 LT |
1053 | /* determine the control name. the rule is: |
1054 | * - if a name id is given in descriptor, use it. | |
1055 | * - if the connected input can be determined, then use the name | |
1056 | * of terminal type. | |
1057 | * - if the connected output can be determined, use it. | |
1058 | * - otherwise, anonymous name. | |
1059 | */ | |
1060 | if (! len) { | |
1061 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1062 | if (! len) | |
1063 | len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1064 | if (! len) | |
1065 | len = snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1066 | "Feature %d", unitid); | |
1067 | } | |
1068 | /* determine the stream direction: | |
1069 | * if the connected output is USB stream, then it's likely a | |
1070 | * capture stream. otherwise it should be playback (hopefully :) | |
1071 | */ | |
1072 | if (! mapped_name && ! (state->oterm.type >> 16)) { | |
1073 | if ((state->oterm.type & 0xff00) == 0x0100) { | |
08d1e635 | 1074 | len = append_ctl_name(kctl, " Capture"); |
1da177e4 | 1075 | } else { |
08d1e635 | 1076 | len = append_ctl_name(kctl, " Playback"); |
1da177e4 LT |
1077 | } |
1078 | } | |
65f25da4 | 1079 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1080 | " Switch" : " Volume"); |
65f25da4 | 1081 | if (control == UAC_FU_VOLUME) { |
7bc5ba7e TI |
1082 | kctl->tlv.c = mixer_vol_tlv; |
1083 | kctl->vd[0].access |= | |
1084 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1085 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
c3a3e040 | 1086 | check_mapped_dB(map, cval); |
7bc5ba7e | 1087 | } |
1da177e4 LT |
1088 | break; |
1089 | ||
1090 | default: | |
1091 | if (! len) | |
1092 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, | |
1093 | sizeof(kctl->id.name)); | |
1094 | break; | |
1095 | } | |
1096 | ||
2cf313ee | 1097 | /* volume control quirks */ |
27d10f56 CL |
1098 | switch (state->chip->usb_id) { |
1099 | case USB_ID(0x0471, 0x0101): | |
1100 | case USB_ID(0x0471, 0x0104): | |
1101 | case USB_ID(0x0471, 0x0105): | |
1102 | case USB_ID(0x0672, 0x1041): | |
2cf313ee AF |
1103 | /* quirk for UDA1321/N101. |
1104 | * note that detection between firmware 2.1.1.7 (N101) | |
1105 | * and later 2.1.1.21 is not very clear from datasheets. | |
1106 | * I hope that the min value is -15360 for newer firmware --jk | |
1107 | */ | |
27d10f56 CL |
1108 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && |
1109 | cval->min == -15616) { | |
2cf313ee AF |
1110 | snd_printk(KERN_INFO |
1111 | "set volume quirk for UDA1321/N101 chip\n"); | |
27d10f56 CL |
1112 | cval->max = -256; |
1113 | } | |
2cf313ee AF |
1114 | break; |
1115 | ||
1116 | case USB_ID(0x046d, 0x09a4): | |
1117 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
1118 | snd_printk(KERN_INFO | |
1119 | "set volume quirk for QuickCam E3500\n"); | |
1120 | cval->min = 6080; | |
1121 | cval->max = 8768; | |
1122 | cval->res = 192; | |
1123 | } | |
1124 | break; | |
1125 | ||
a5c7d797 AF |
1126 | case USB_ID(0x046d, 0x0809): |
1127 | case USB_ID(0x046d, 0x0991): | |
1128 | /* Most audio usb devices lie about volume resolution. | |
1129 | * Most Logitech webcams have res = 384. | |
1130 | * Proboly there is some logitech magic behind this number --fishor | |
1131 | */ | |
1132 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
1133 | snd_printk(KERN_INFO | |
1134 | "set resolution quirk: cval->res = 384\n"); | |
1135 | cval->res = 384; | |
1136 | } | |
1137 | break; | |
1138 | ||
1da177e4 LT |
1139 | } |
1140 | ||
1141 | snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", | |
1142 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); | |
84957a8a | 1143 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1144 | } |
1145 | ||
1146 | ||
1147 | ||
1148 | /* | |
1149 | * parse a feature unit | |
1150 | * | |
1151 | * most of controlls are defined here. | |
1152 | */ | |
28e1b773 | 1153 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) |
1da177e4 LT |
1154 | { |
1155 | int channels, i, j; | |
86e07d34 | 1156 | struct usb_audio_term iterm; |
1da177e4 LT |
1157 | unsigned int master_bits, first_ch_bits; |
1158 | int err, csize; | |
23caaf19 DM |
1159 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1160 | __u8 *bmaControls; | |
1161 | ||
1162 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1163 | csize = hdr->bControlSize; | |
1164 | channels = (hdr->bLength - 7) / csize - 1; | |
1165 | bmaControls = hdr->bmaControls; | |
1166 | } else { | |
1167 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
1168 | csize = 4; | |
e8d0fee7 | 1169 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 DM |
1170 | bmaControls = ftr->bmaControls; |
1171 | } | |
1da177e4 | 1172 | |
23caaf19 | 1173 | if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { |
de48c7bc | 1174 | snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); |
1da177e4 LT |
1175 | return -EINVAL; |
1176 | } | |
1177 | ||
1178 | /* parse the source unit */ | |
23caaf19 | 1179 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1180 | return err; |
1181 | ||
1182 | /* determine the input source type and name */ | |
23caaf19 | 1183 | if (check_input_term(state, hdr->bSourceID, &iterm) < 0) |
1da177e4 LT |
1184 | return -EINVAL; |
1185 | ||
23caaf19 | 1186 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1187 | /* master configuration quirks */ |
1188 | switch (state->chip->usb_id) { | |
1189 | case USB_ID(0x08bb, 0x2702): | |
1190 | snd_printk(KERN_INFO | |
1191 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
1192 | /* disable non-functional volume control */ | |
65f25da4 | 1193 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 JK |
1194 | break; |
1195 | } | |
1da177e4 | 1196 | if (channels > 0) |
23caaf19 | 1197 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1198 | else |
1199 | first_ch_bits = 0; | |
23caaf19 DM |
1200 | |
1201 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1202 | /* check all control types */ | |
1203 | for (i = 0; i < 10; i++) { | |
1204 | unsigned int ch_bits = 0; | |
1205 | for (j = 0; j < channels; j++) { | |
1206 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
1207 | if (mask & (1 << i)) | |
1208 | ch_bits |= (1 << j); | |
1209 | } | |
1210 | /* audio class v1 controls are never read-only */ | |
1211 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ | |
1212 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); | |
1213 | if (master_bits & (1 << i)) | |
1214 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); | |
1215 | } | |
1216 | } else { /* UAC_VERSION_2 */ | |
1217 | for (i = 0; i < 30/2; i++) { | |
23caaf19 DM |
1218 | unsigned int ch_bits = 0; |
1219 | unsigned int ch_read_only = 0; | |
1220 | ||
1221 | for (j = 0; j < channels; j++) { | |
1222 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
dcbe7bcf | 1223 | if (uac2_control_is_readable(mask, i)) { |
23caaf19 | 1224 | ch_bits |= (1 << j); |
dcbe7bcf | 1225 | if (!uac2_control_is_writeable(mask, i)) |
23caaf19 DM |
1226 | ch_read_only |= (1 << j); |
1227 | } | |
1228 | } | |
1229 | ||
a6a33259 DM |
1230 | /* NOTE: build_feature_ctl() will mark the control read-only if all channels |
1231 | * are marked read-only in the descriptors. Otherwise, the control will be | |
1232 | * reported as writeable, but the driver will not actually issue a write | |
1233 | * command for read-only channels */ | |
23caaf19 | 1234 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ |
a6a33259 | 1235 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); |
dcbe7bcf | 1236 | if (uac2_control_is_readable(master_bits, i)) |
23caaf19 | 1237 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
dcbe7bcf | 1238 | !uac2_control_is_writeable(master_bits, i)); |
1da177e4 | 1239 | } |
1da177e4 LT |
1240 | } |
1241 | ||
1242 | return 0; | |
1243 | } | |
1244 | ||
1245 | ||
1246 | /* | |
1247 | * Mixer Unit | |
1248 | */ | |
1249 | ||
1250 | /* | |
1251 | * build a mixer unit control | |
1252 | * | |
1253 | * the callbacks are identical with feature unit. | |
1254 | * input channel number (zero based) is given in control field instead. | |
1255 | */ | |
1256 | ||
99fc8645 DM |
1257 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1258 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1259 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1260 | struct usb_audio_term *iterm) |
1da177e4 | 1261 | { |
86e07d34 | 1262 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1263 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1264 | unsigned int i, len; |
86e07d34 | 1265 | struct snd_kcontrol *kctl; |
c3a3e040 | 1266 | const struct usbmix_name_map *map; |
1da177e4 | 1267 | |
c3a3e040 JK |
1268 | map = find_map(state, unitid, 0); |
1269 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1270 | return; |
1271 | ||
561b220a | 1272 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1273 | if (! cval) |
1274 | return; | |
1275 | ||
84957a8a | 1276 | cval->mixer = state->mixer; |
1da177e4 LT |
1277 | cval->id = unitid; |
1278 | cval->control = in_ch + 1; /* based on 1 */ | |
1279 | cval->val_type = USB_MIXER_S16; | |
1280 | for (i = 0; i < num_outs; i++) { | |
23caaf19 | 1281 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { |
1da177e4 LT |
1282 | cval->cmask |= (1 << i); |
1283 | cval->channels++; | |
1284 | } | |
1285 | } | |
1286 | ||
1287 | /* get min/max values */ | |
1288 | get_min_max(cval, 0); | |
1289 | ||
1290 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1291 | if (! kctl) { | |
1292 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1293 | kfree(cval); | |
1294 | return; | |
1295 | } | |
1296 | kctl->private_free = usb_mixer_elem_free; | |
1297 | ||
c3a3e040 | 1298 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1299 | if (! len) |
1300 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); | |
1301 | if (! len) | |
1302 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); | |
08d1e635 | 1303 | append_ctl_name(kctl, " Volume"); |
1da177e4 LT |
1304 | |
1305 | snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", | |
1306 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1307 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1308 | } |
1309 | ||
1310 | ||
1311 | /* | |
1312 | * parse a mixer unit | |
1313 | */ | |
99fc8645 | 1314 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1315 | { |
99fc8645 | 1316 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1317 | struct usb_audio_term iterm; |
1da177e4 LT |
1318 | int input_pins, num_ins, num_outs; |
1319 | int pin, ich, err; | |
1320 | ||
99fc8645 | 1321 | if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { |
1da177e4 LT |
1322 | snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); |
1323 | return -EINVAL; | |
1324 | } | |
1325 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
99fc8645 | 1326 | if (desc->bLength <= 10 + input_pins) { |
1da177e4 LT |
1327 | snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); |
1328 | return 0; | |
1329 | } | |
1330 | ||
1331 | num_ins = 0; | |
1332 | ich = 0; | |
1333 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1334 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 LT |
1335 | if (err < 0) |
1336 | return err; | |
99fc8645 | 1337 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1338 | if (err < 0) |
1339 | return err; | |
1340 | num_ins += iterm.channels; | |
1341 | for (; ich < num_ins; ++ich) { | |
1342 | int och, ich_has_controls = 0; | |
1343 | ||
1344 | for (och = 0; och < num_outs; ++och) { | |
23caaf19 | 1345 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), |
1da177e4 LT |
1346 | ich, och, num_outs)) { |
1347 | ich_has_controls = 1; | |
1348 | break; | |
1349 | } | |
1350 | } | |
1351 | if (ich_has_controls) | |
1352 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1353 | unitid, &iterm); | |
1354 | } | |
1355 | } | |
1356 | return 0; | |
1357 | } | |
1358 | ||
1359 | ||
1360 | /* | |
1361 | * Processing Unit / Extension Unit | |
1362 | */ | |
1363 | ||
1364 | /* get callback for processing/extension unit */ | |
86e07d34 | 1365 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1366 | { |
86e07d34 | 1367 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1368 | int err, val; |
1369 | ||
1370 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
84957a8a | 1371 | if (err < 0 && cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1372 | ucontrol->value.integer.value[0] = cval->min; |
1373 | return 0; | |
1374 | } | |
1375 | if (err < 0) | |
1376 | return err; | |
1377 | val = get_relative_value(cval, val); | |
1378 | ucontrol->value.integer.value[0] = val; | |
1379 | return 0; | |
1380 | } | |
1381 | ||
1382 | /* put callback for processing/extension unit */ | |
86e07d34 | 1383 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1384 | { |
86e07d34 | 1385 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1386 | int val, oval, err; |
1387 | ||
1388 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
1389 | if (err < 0) { | |
84957a8a | 1390 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1391 | return 0; |
1392 | return err; | |
1393 | } | |
1394 | val = ucontrol->value.integer.value[0]; | |
1395 | val = get_abs_value(cval, val); | |
1396 | if (val != oval) { | |
1397 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1398 | return 1; | |
1399 | } | |
1400 | return 0; | |
1401 | } | |
1402 | ||
1403 | /* alsa control interface for processing/extension unit */ | |
86e07d34 | 1404 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1405 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1406 | .name = "", /* will be filled later */ | |
1407 | .info = mixer_ctl_feature_info, | |
1408 | .get = mixer_ctl_procunit_get, | |
1409 | .put = mixer_ctl_procunit_put, | |
1410 | }; | |
1411 | ||
1412 | ||
1413 | /* | |
1414 | * predefined data for processing units | |
1415 | */ | |
1416 | struct procunit_value_info { | |
1417 | int control; | |
1418 | char *suffix; | |
1419 | int val_type; | |
1420 | int min_value; | |
1421 | }; | |
1422 | ||
1423 | struct procunit_info { | |
1424 | int type; | |
1425 | char *name; | |
1426 | struct procunit_value_info *values; | |
1427 | }; | |
1428 | ||
1429 | static struct procunit_value_info updown_proc_info[] = { | |
65f25da4 DM |
1430 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1431 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1432 | { 0 } |
1433 | }; | |
1434 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
1435 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1436 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1437 | { 0 } |
1438 | }; | |
1439 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
1440 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1441 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
1442 | { 0 } |
1443 | }; | |
1444 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
1445 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1446 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1447 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1448 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
1449 | { 0 } |
1450 | }; | |
1451 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
1452 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1453 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1454 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1455 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
1456 | { 0 } |
1457 | }; | |
1458 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
1459 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1460 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
1461 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
1462 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1463 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
1464 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
1465 | { 0 } |
1466 | }; | |
1467 | ||
1468 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
1469 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
1470 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1471 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
1472 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
1473 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
1474 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
1475 | { 0 }, |
1476 | }; | |
7d2b451e SK |
1477 | /* |
1478 | * predefined data for extension units | |
1479 | */ | |
1480 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1481 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1482 | { 0 } | |
7d2b451e SK |
1483 | }; |
1484 | static struct procunit_value_info clock_source_xu_info[] = { | |
1485 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1486 | { 0 } | |
1487 | }; | |
1488 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1489 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1490 | { 0 } | |
1491 | }; | |
1492 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1493 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1494 | { 0 } | |
1495 | }; | |
1496 | static struct procunit_info extunits[] = { | |
1497 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1498 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1499 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1500 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1501 | { 0 } | |
1502 | }; | |
1da177e4 LT |
1503 | /* |
1504 | * build a processing/extension unit | |
1505 | */ | |
99fc8645 | 1506 | static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) |
1da177e4 | 1507 | { |
99fc8645 DM |
1508 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1509 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1510 | struct usb_mixer_elem_info *cval; |
1511 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1512 | int i, err, nameid, type, len; |
1513 | struct procunit_info *info; | |
1514 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1515 | const struct usbmix_name_map *map; |
1da177e4 LT |
1516 | static struct procunit_value_info default_value_info[] = { |
1517 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1518 | { 0 } | |
1519 | }; | |
1520 | static struct procunit_info default_info = { | |
1521 | 0, NULL, default_value_info | |
1522 | }; | |
1523 | ||
23caaf19 DM |
1524 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1525 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
1da177e4 LT |
1526 | snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); |
1527 | return -EINVAL; | |
1528 | } | |
1529 | ||
1530 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1531 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1532 | return err; |
1533 | } | |
1534 | ||
99fc8645 | 1535 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1536 | for (info = list; info && info->type; info++) |
1537 | if (info->type == type) | |
1538 | break; | |
1539 | if (! info || ! info->type) | |
1540 | info = &default_info; | |
1541 | ||
1542 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1543 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 DM |
1544 | |
1545 | if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) | |
1da177e4 | 1546 | continue; |
c3a3e040 JK |
1547 | map = find_map(state, unitid, valinfo->control); |
1548 | if (check_ignored_ctl(map)) | |
1da177e4 | 1549 | continue; |
561b220a | 1550 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1551 | if (! cval) { |
1552 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1553 | return -ENOMEM; | |
1554 | } | |
84957a8a | 1555 | cval->mixer = state->mixer; |
1da177e4 LT |
1556 | cval->id = unitid; |
1557 | cval->control = valinfo->control; | |
1558 | cval->val_type = valinfo->val_type; | |
1559 | cval->channels = 1; | |
1560 | ||
1561 | /* get min/max values */ | |
65f25da4 | 1562 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
23caaf19 | 1563 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1564 | /* FIXME: hard-coded */ |
1565 | cval->min = 1; | |
99fc8645 | 1566 | cval->max = control_spec[0]; |
1da177e4 LT |
1567 | cval->res = 1; |
1568 | cval->initialized = 1; | |
7d2b451e SK |
1569 | } else { |
1570 | if (type == USB_XU_CLOCK_RATE) { | |
1571 | /* E-Mu USB 0404/0202/TrackerPre | |
1572 | * samplerate control quirk | |
1573 | */ | |
1574 | cval->min = 0; | |
1575 | cval->max = 5; | |
1576 | cval->res = 1; | |
1577 | cval->initialized = 1; | |
1578 | } else | |
1579 | get_min_max(cval, valinfo->min_value); | |
1580 | } | |
1da177e4 LT |
1581 | |
1582 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
1583 | if (! kctl) { | |
1584 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1585 | kfree(cval); | |
1586 | return -ENOMEM; | |
1587 | } | |
1588 | kctl->private_free = usb_mixer_elem_free; | |
1589 | ||
c3a3e040 JK |
1590 | if (check_mapped_name(map, kctl->id.name, |
1591 | sizeof(kctl->id.name))) | |
1592 | /* nothing */ ; | |
1da177e4 LT |
1593 | else if (info->name) |
1594 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); | |
1595 | else { | |
23caaf19 | 1596 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1597 | len = 0; |
1598 | if (nameid) | |
1599 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1600 | if (! len) | |
1601 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); | |
1602 | } | |
08d1e635 TI |
1603 | append_ctl_name(kctl, " "); |
1604 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 LT |
1605 | |
1606 | snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", | |
1607 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1608 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1609 | return err; |
1610 | } | |
1611 | return 0; | |
1612 | } | |
1613 | ||
1614 | ||
99fc8645 | 1615 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1616 | { |
99fc8645 | 1617 | return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); |
1da177e4 LT |
1618 | } |
1619 | ||
99fc8645 | 1620 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1621 | { |
99fc8645 DM |
1622 | /* Note that we parse extension units with processing unit descriptors. |
1623 | * That's ok as the layout is the same */ | |
1624 | return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); | |
1da177e4 LT |
1625 | } |
1626 | ||
1627 | ||
1628 | /* | |
1629 | * Selector Unit | |
1630 | */ | |
1631 | ||
1632 | /* info callback for selector unit | |
1633 | * use an enumerator type for routing | |
1634 | */ | |
86e07d34 | 1635 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 1636 | { |
86e07d34 | 1637 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1638 | char **itemlist = (char **)kcontrol->private_value; |
1639 | ||
5e246b85 TI |
1640 | if (snd_BUG_ON(!itemlist)) |
1641 | return -EINVAL; | |
1da177e4 LT |
1642 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
1643 | uinfo->count = 1; | |
1644 | uinfo->value.enumerated.items = cval->max; | |
1645 | if ((int)uinfo->value.enumerated.item >= cval->max) | |
1646 | uinfo->value.enumerated.item = cval->max - 1; | |
1647 | strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]); | |
1648 | return 0; | |
1649 | } | |
1650 | ||
1651 | /* get callback for selector unit */ | |
86e07d34 | 1652 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1653 | { |
86e07d34 | 1654 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1655 | int val, err; |
1656 | ||
09414207 | 1657 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 1658 | if (err < 0) { |
84957a8a | 1659 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1660 | ucontrol->value.enumerated.item[0] = 0; |
1661 | return 0; | |
1662 | } | |
1663 | return err; | |
1664 | } | |
1665 | val = get_relative_value(cval, val); | |
1666 | ucontrol->value.enumerated.item[0] = val; | |
1667 | return 0; | |
1668 | } | |
1669 | ||
1670 | /* put callback for selector unit */ | |
86e07d34 | 1671 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1672 | { |
86e07d34 | 1673 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1674 | int val, oval, err; |
1675 | ||
09414207 | 1676 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
1da177e4 | 1677 | if (err < 0) { |
84957a8a | 1678 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1679 | return 0; |
1680 | return err; | |
1681 | } | |
1682 | val = ucontrol->value.enumerated.item[0]; | |
1683 | val = get_abs_value(cval, val); | |
1684 | if (val != oval) { | |
09414207 | 1685 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
1686 | return 1; |
1687 | } | |
1688 | return 0; | |
1689 | } | |
1690 | ||
1691 | /* alsa control interface for selector unit */ | |
86e07d34 | 1692 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
1693 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1694 | .name = "", /* will be filled later */ | |
1695 | .info = mixer_ctl_selector_info, | |
1696 | .get = mixer_ctl_selector_get, | |
1697 | .put = mixer_ctl_selector_put, | |
1698 | }; | |
1699 | ||
1700 | ||
1701 | /* private free callback. | |
1702 | * free both private_data and private_value | |
1703 | */ | |
86e07d34 | 1704 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
1705 | { |
1706 | int i, num_ins = 0; | |
1707 | ||
1708 | if (kctl->private_data) { | |
86e07d34 | 1709 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
1710 | num_ins = cval->max; |
1711 | kfree(cval); | |
1712 | kctl->private_data = NULL; | |
1713 | } | |
1714 | if (kctl->private_value) { | |
1715 | char **itemlist = (char **)kctl->private_value; | |
1716 | for (i = 0; i < num_ins; i++) | |
1717 | kfree(itemlist[i]); | |
1718 | kfree(itemlist); | |
1719 | kctl->private_value = 0; | |
1720 | } | |
1721 | } | |
1722 | ||
1723 | /* | |
1724 | * parse a selector unit | |
1725 | */ | |
99fc8645 | 1726 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1727 | { |
99fc8645 | 1728 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1729 | unsigned int i, nameid, len; |
1730 | int err; | |
86e07d34 TI |
1731 | struct usb_mixer_elem_info *cval; |
1732 | struct snd_kcontrol *kctl; | |
c3a3e040 | 1733 | const struct usbmix_name_map *map; |
1da177e4 LT |
1734 | char **namelist; |
1735 | ||
99fc8645 | 1736 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
1da177e4 LT |
1737 | snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); |
1738 | return -EINVAL; | |
1739 | } | |
1740 | ||
99fc8645 DM |
1741 | for (i = 0; i < desc->bNrInPins; i++) { |
1742 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
1743 | return err; |
1744 | } | |
1745 | ||
99fc8645 | 1746 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
1747 | return 0; |
1748 | ||
c3a3e040 JK |
1749 | map = find_map(state, unitid, 0); |
1750 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1751 | return 0; |
1752 | ||
561b220a | 1753 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1754 | if (! cval) { |
1755 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1756 | return -ENOMEM; | |
1757 | } | |
84957a8a | 1758 | cval->mixer = state->mixer; |
1da177e4 LT |
1759 | cval->id = unitid; |
1760 | cval->val_type = USB_MIXER_U8; | |
1761 | cval->channels = 1; | |
1762 | cval->min = 1; | |
99fc8645 | 1763 | cval->max = desc->bNrInPins; |
1da177e4 LT |
1764 | cval->res = 1; |
1765 | cval->initialized = 1; | |
1766 | ||
09414207 DM |
1767 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
1768 | cval->control = UAC2_CX_CLOCK_SELECTOR; | |
1769 | else | |
1770 | cval->control = 0; | |
1771 | ||
99fc8645 | 1772 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
1da177e4 LT |
1773 | if (! namelist) { |
1774 | snd_printk(KERN_ERR "cannot malloc\n"); | |
1775 | kfree(cval); | |
1776 | return -ENOMEM; | |
1777 | } | |
1778 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 1779 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 1780 | struct usb_audio_term iterm; |
1da177e4 LT |
1781 | len = 0; |
1782 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
1783 | if (! namelist[i]) { | |
1784 | snd_printk(KERN_ERR "cannot malloc\n"); | |
7fbe3ca5 | 1785 | while (i--) |
1da177e4 LT |
1786 | kfree(namelist[i]); |
1787 | kfree(namelist); | |
1788 | kfree(cval); | |
1789 | return -ENOMEM; | |
1790 | } | |
8e062ec7 CL |
1791 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
1792 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 1793 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
1794 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
1795 | if (! len) | |
1796 | sprintf(namelist[i], "Input %d", i); | |
1797 | } | |
1798 | ||
1799 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
1800 | if (! kctl) { | |
1801 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
878b4789 | 1802 | kfree(namelist); |
1da177e4 LT |
1803 | kfree(cval); |
1804 | return -ENOMEM; | |
1805 | } | |
1806 | kctl->private_value = (unsigned long)namelist; | |
1807 | kctl->private_free = usb_mixer_selector_elem_free; | |
1808 | ||
99fc8645 | 1809 | nameid = uac_selector_unit_iSelector(desc); |
c3a3e040 | 1810 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1811 | if (len) |
1812 | ; | |
1813 | else if (nameid) | |
1814 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1815 | else { | |
1816 | len = get_term_name(state, &state->oterm, | |
1817 | kctl->id.name, sizeof(kctl->id.name), 0); | |
1818 | if (! len) | |
1819 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); | |
1820 | ||
09414207 DM |
1821 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
1822 | append_ctl_name(kctl, " Clock Source"); | |
1823 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 1824 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 1825 | else |
08d1e635 | 1826 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
1827 | } |
1828 | ||
1829 | snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", | |
99fc8645 | 1830 | cval->id, kctl->id.name, desc->bNrInPins); |
84957a8a | 1831 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1832 | return err; |
1833 | ||
1834 | return 0; | |
1835 | } | |
1836 | ||
1837 | ||
1838 | /* | |
1839 | * parse an audio unit recursively | |
1840 | */ | |
1841 | ||
86e07d34 | 1842 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
1843 | { |
1844 | unsigned char *p1; | |
1845 | ||
1846 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
1847 | return 0; /* the unit already visited */ | |
1848 | ||
1849 | p1 = find_audio_control_unit(state, unitid); | |
1850 | if (!p1) { | |
1851 | snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); | |
1852 | return -EINVAL; | |
1853 | } | |
1854 | ||
1855 | switch (p1[2]) { | |
de48c7bc | 1856 | case UAC_INPUT_TERMINAL: |
09414207 | 1857 | case UAC2_CLOCK_SOURCE: |
1da177e4 | 1858 | return 0; /* NOP */ |
de48c7bc | 1859 | case UAC_MIXER_UNIT: |
1da177e4 | 1860 | return parse_audio_mixer_unit(state, unitid, p1); |
de48c7bc | 1861 | case UAC_SELECTOR_UNIT: |
09414207 | 1862 | case UAC2_CLOCK_SELECTOR: |
1da177e4 | 1863 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 1864 | case UAC_FEATURE_UNIT: |
1da177e4 | 1865 | return parse_audio_feature_unit(state, unitid, p1); |
69da9bcb | 1866 | case UAC1_PROCESSING_UNIT: |
23caaf19 DM |
1867 | /* UAC2_EFFECT_UNIT has the same value */ |
1868 | if (state->mixer->protocol == UAC_VERSION_1) | |
1869 | return parse_audio_processing_unit(state, unitid, p1); | |
1870 | else | |
1871 | return 0; /* FIXME - effect units not implemented yet */ | |
69da9bcb | 1872 | case UAC1_EXTENSION_UNIT: |
23caaf19 DM |
1873 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
1874 | if (state->mixer->protocol == UAC_VERSION_1) | |
1875 | return parse_audio_extension_unit(state, unitid, p1); | |
1876 | else /* UAC_VERSION_2 */ | |
1877 | return parse_audio_processing_unit(state, unitid, p1); | |
1da177e4 LT |
1878 | default: |
1879 | snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1880 | return -EINVAL; | |
1881 | } | |
1882 | } | |
1883 | ||
84957a8a CL |
1884 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
1885 | { | |
6639b6c2 CL |
1886 | kfree(mixer->id_elems); |
1887 | if (mixer->urb) { | |
1888 | kfree(mixer->urb->transfer_buffer); | |
1889 | usb_free_urb(mixer->urb); | |
1890 | } | |
68df9de1 | 1891 | usb_free_urb(mixer->rc_urb); |
b259b10c | 1892 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
1893 | kfree(mixer); |
1894 | } | |
1895 | ||
86e07d34 | 1896 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
1897 | { |
1898 | struct usb_mixer_interface *mixer = device->device_data; | |
1899 | snd_usb_mixer_free(mixer); | |
1900 | return 0; | |
1901 | } | |
1902 | ||
1da177e4 LT |
1903 | /* |
1904 | * create mixer controls | |
1905 | * | |
de48c7bc | 1906 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 1907 | */ |
84957a8a | 1908 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 1909 | { |
86e07d34 | 1910 | struct mixer_build state; |
1da177e4 LT |
1911 | int err; |
1912 | const struct usbmix_ctl_map *map; | |
84957a8a | 1913 | struct usb_host_interface *hostif; |
23caaf19 | 1914 | void *p; |
1da177e4 | 1915 | |
84957a8a | 1916 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; |
1da177e4 | 1917 | memset(&state, 0, sizeof(state)); |
84957a8a CL |
1918 | state.chip = mixer->chip; |
1919 | state.mixer = mixer; | |
1da177e4 LT |
1920 | state.buffer = hostif->extra; |
1921 | state.buflen = hostif->extralen; | |
1da177e4 LT |
1922 | |
1923 | /* check the mapping table */ | |
27d10f56 CL |
1924 | for (map = usbmix_ctl_maps; map->id; map++) { |
1925 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 1926 | state.map = map->map; |
8e062ec7 | 1927 | state.selector_map = map->selector_map; |
84957a8a | 1928 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
1929 | break; |
1930 | } | |
1931 | } | |
1da177e4 | 1932 | |
23caaf19 DM |
1933 | p = NULL; |
1934 | while ((p = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, p, UAC_OUTPUT_TERMINAL)) != NULL) { | |
1935 | if (mixer->protocol == UAC_VERSION_1) { | |
69da9bcb | 1936 | struct uac1_output_terminal_descriptor *desc = p; |
23caaf19 DM |
1937 | |
1938 | if (desc->bLength < sizeof(*desc)) | |
1939 | continue; /* invalid descriptor? */ | |
1940 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
1941 | state.oterm.id = desc->bTerminalID; | |
1942 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1943 | state.oterm.name = desc->iTerminal; | |
1944 | err = parse_audio_unit(&state, desc->bSourceID); | |
1945 | if (err < 0) | |
1946 | return err; | |
1947 | } else { /* UAC_VERSION_2 */ | |
1948 | struct uac2_output_terminal_descriptor *desc = p; | |
1949 | ||
1950 | if (desc->bLength < sizeof(*desc)) | |
1951 | continue; /* invalid descriptor? */ | |
1952 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
1953 | state.oterm.id = desc->bTerminalID; | |
1954 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1955 | state.oterm.name = desc->iTerminal; | |
1956 | err = parse_audio_unit(&state, desc->bSourceID); | |
1957 | if (err < 0) | |
1958 | return err; | |
09414207 DM |
1959 | |
1960 | /* for UAC2, use the same approach to also add the clock selectors */ | |
1961 | err = parse_audio_unit(&state, desc->bCSourceID); | |
1962 | if (err < 0) | |
1963 | return err; | |
23caaf19 | 1964 | } |
1da177e4 | 1965 | } |
23caaf19 | 1966 | |
1da177e4 LT |
1967 | return 0; |
1968 | } | |
84957a8a | 1969 | |
7b1eda22 | 1970 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 1971 | { |
86e07d34 | 1972 | struct usb_mixer_elem_info *info; |
6639b6c2 CL |
1973 | |
1974 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) | |
1975 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
1976 | info->elem_id); | |
1977 | } | |
1978 | ||
ebfdeea3 JK |
1979 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
1980 | int unitid, | |
1981 | struct usb_mixer_elem_info *cval) | |
1982 | { | |
1983 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", | |
1984 | "S8", "U8", "S16", "U16"}; | |
1985 | snd_iprintf(buffer, " Unit: %i\n", unitid); | |
1986 | if (cval->elem_id) | |
1987 | snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", | |
1988 | cval->elem_id->name, cval->elem_id->index); | |
1989 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " | |
1990 | "channels=%i, type=\"%s\"\n", cval->id, | |
1991 | cval->control, cval->cmask, cval->channels, | |
1992 | val_types[cval->val_type]); | |
1993 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
1994 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
1995 | } | |
1996 | ||
1997 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
1998 | struct snd_info_buffer *buffer) | |
1999 | { | |
2000 | struct snd_usb_audio *chip = entry->private_data; | |
2001 | struct usb_mixer_interface *mixer; | |
2002 | struct usb_mixer_elem_info *cval; | |
2003 | int unitid; | |
2004 | ||
2005 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
2006 | snd_iprintf(buffer, | |
7affdc17 JK |
2007 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
2008 | chip->usb_id, mixer->ctrlif, | |
2009 | mixer->ignore_ctl_error); | |
ebfdeea3 JK |
2010 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
2011 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
2012 | for (cval = mixer->id_elems[unitid]; cval; | |
2013 | cval = cval->next_id_elem) | |
2014 | snd_usb_mixer_dump_cval(buffer, unitid, cval); | |
2015 | } | |
2016 | } | |
2017 | } | |
2018 | ||
e213e9cf DM |
2019 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
2020 | int attribute, int value, int index) | |
2021 | { | |
2022 | struct usb_mixer_elem_info *info; | |
2023 | __u8 unitid = (index >> 8) & 0xff; | |
2024 | __u8 control = (value >> 8) & 0xff; | |
2025 | __u8 channel = value & 0xff; | |
2026 | ||
2027 | if (channel >= MAX_CHANNELS) { | |
2028 | snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", | |
2029 | __func__, channel); | |
2030 | return; | |
2031 | } | |
2032 | ||
2033 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { | |
2034 | if (info->control != control) | |
2035 | continue; | |
2036 | ||
2037 | switch (attribute) { | |
2038 | case UAC2_CS_CUR: | |
2039 | /* invalidate cache, so the value is read from the device */ | |
2040 | if (channel) | |
2041 | info->cached &= ~(1 << channel); | |
2042 | else /* master channel */ | |
2043 | info->cached = 0; | |
2044 | ||
2045 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2046 | info->elem_id); | |
2047 | break; | |
2048 | ||
2049 | case UAC2_CS_RANGE: | |
2050 | /* TODO */ | |
2051 | break; | |
2052 | ||
2053 | case UAC2_CS_MEM: | |
2054 | /* TODO */ | |
2055 | break; | |
2056 | ||
2057 | default: | |
2058 | snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", | |
2059 | attribute); | |
2060 | break; | |
2061 | } /* switch */ | |
2062 | } | |
2063 | } | |
2064 | ||
2065 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2066 | { |
2067 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf DM |
2068 | int len = urb->actual_length; |
2069 | ||
2070 | if (urb->status != 0) | |
2071 | goto requeue; | |
6639b6c2 | 2072 | |
e213e9cf DM |
2073 | if (mixer->protocol == UAC_VERSION_1) { |
2074 | struct uac1_status_word *status; | |
6639b6c2 | 2075 | |
e213e9cf DM |
2076 | for (status = urb->transfer_buffer; |
2077 | len >= sizeof(*status); | |
2078 | len -= sizeof(*status), status++) { | |
6639b6c2 | 2079 | snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", |
e213e9cf DM |
2080 | status->bStatusType, |
2081 | status->bOriginator); | |
2082 | ||
6639b6c2 | 2083 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2084 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2085 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2086 | continue; |
e213e9cf DM |
2087 | |
2088 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2089 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2090 | else |
e213e9cf DM |
2091 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2092 | } | |
2093 | } else { /* UAC_VERSION_2 */ | |
2094 | struct uac2_interrupt_data_msg *msg; | |
2095 | ||
2096 | for (msg = urb->transfer_buffer; | |
2097 | len >= sizeof(*msg); | |
2098 | len -= sizeof(*msg), msg++) { | |
2099 | /* drop vendor specific and endpoint requests */ | |
2100 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2101 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2102 | continue; | |
2103 | ||
2104 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2105 | le16_to_cpu(msg->wValue), | |
2106 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2107 | } |
2108 | } | |
e213e9cf DM |
2109 | |
2110 | requeue: | |
6639b6c2 CL |
2111 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) { |
2112 | urb->dev = mixer->chip->dev; | |
2113 | usb_submit_urb(urb, GFP_ATOMIC); | |
2114 | } | |
2115 | } | |
2116 | ||
2117 | /* create the handler for the optional status interrupt endpoint */ | |
2118 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2119 | { | |
2120 | struct usb_host_interface *hostif; | |
2121 | struct usb_endpoint_descriptor *ep; | |
2122 | void *transfer_buffer; | |
2123 | int buffer_length; | |
2124 | unsigned int epnum; | |
2125 | ||
2126 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; | |
2127 | /* we need one interrupt input endpoint */ | |
2128 | if (get_iface_desc(hostif)->bNumEndpoints < 1) | |
2129 | return 0; | |
2130 | ep = get_endpoint(hostif, 0); | |
913ae5a2 | 2131 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2132 | return 0; |
2133 | ||
42a6e66f | 2134 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2135 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2136 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2137 | if (!transfer_buffer) | |
2138 | return -ENOMEM; | |
2139 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2140 | if (!mixer->urb) { | |
2141 | kfree(transfer_buffer); | |
2142 | return -ENOMEM; | |
2143 | } | |
2144 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2145 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2146 | transfer_buffer, buffer_length, | |
e213e9cf | 2147 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2148 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2149 | return 0; | |
2150 | } | |
2151 | ||
7a9b8063 TI |
2152 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2153 | int ignore_error) | |
84957a8a | 2154 | { |
86e07d34 | 2155 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2156 | .dev_free = snd_usb_mixer_dev_free |
2157 | }; | |
2158 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2159 | struct snd_info_entry *entry; |
7b8a043f | 2160 | struct usb_host_interface *host_iface; |
23caaf19 | 2161 | int err; |
84957a8a CL |
2162 | |
2163 | strcpy(chip->card->mixername, "USB Mixer"); | |
2164 | ||
561b220a | 2165 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2166 | if (!mixer) |
2167 | return -ENOMEM; | |
2168 | mixer->chip = chip; | |
2169 | mixer->ctrlif = ctrlif; | |
7a9b8063 | 2170 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2171 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2172 | GFP_KERNEL); | |
6639b6c2 CL |
2173 | if (!mixer->id_elems) { |
2174 | kfree(mixer); | |
2175 | return -ENOMEM; | |
2176 | } | |
84957a8a | 2177 | |
7b8a043f | 2178 | host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
ca4c2ada | 2179 | mixer->protocol = get_iface_desc(host_iface)->bInterfaceProtocol; |
7b8a043f | 2180 | |
6639b6c2 | 2181 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2182 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2183 | goto _error; | |
84957a8a | 2184 | |
7b1eda22 | 2185 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2186 | |
84957a8a | 2187 | err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); |
93446edc CL |
2188 | if (err < 0) |
2189 | goto _error; | |
ebfdeea3 JK |
2190 | |
2191 | if (list_empty(&chip->mixer_list) && | |
2192 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2193 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2194 | ||
84957a8a CL |
2195 | list_add(&mixer->list, &chip->mixer_list); |
2196 | return 0; | |
93446edc CL |
2197 | |
2198 | _error: | |
2199 | snd_usb_mixer_free(mixer); | |
2200 | return err; | |
84957a8a CL |
2201 | } |
2202 | ||
2203 | void snd_usb_mixer_disconnect(struct list_head *p) | |
2204 | { | |
6639b6c2 | 2205 | struct usb_mixer_interface *mixer; |
7b1eda22 | 2206 | |
6639b6c2 | 2207 | mixer = list_entry(p, struct usb_mixer_interface, list); |
68df9de1 MK |
2208 | usb_kill_urb(mixer->urb); |
2209 | usb_kill_urb(mixer->rc_urb); | |
84957a8a | 2210 | } |