Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * (Tentative) USB Audio Driver for ALSA | |
3 | * | |
4 | * Mixer control part | |
5 | * | |
6 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> | |
7 | * | |
8 | * Many codes borrowed from audio.c by | |
9 | * Alan Cox (alan@lxorguk.ukuu.org.uk) | |
10 | * Thomas Sailer (sailer@ife.ee.ethz.ch) | |
11 | * | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License as published by | |
15 | * the Free Software Foundation; either version 2 of the License, or | |
16 | * (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
26 | * | |
27 | */ | |
28 | ||
157a57b6 DM |
29 | /* |
30 | * TODOs, for both the mixer and the streaming interfaces: | |
31 | * | |
32 | * - support for UAC2 effect units | |
33 | * - support for graphical equalizers | |
34 | * - RANGE and MEM set commands (UAC2) | |
35 | * - RANGE and MEM interrupt dispatchers (UAC2) | |
36 | * - audio channel clustering (UAC2) | |
37 | * - audio sample rate converter units (UAC2) | |
38 | * - proper handling of clock multipliers (UAC2) | |
39 | * - dispatch clock change notifications (UAC2) | |
40 | * - stop PCM streams which use a clock that became invalid | |
41 | * - stop PCM streams which use a clock selector that has changed | |
42 | * - parse available sample rates again when clock sources changed | |
43 | */ | |
44 | ||
1da177e4 LT |
45 | #include <linux/bitops.h> |
46 | #include <linux/init.h> | |
47 | #include <linux/list.h> | |
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 | 293 | { |
3d8d4dcf | 294 | struct snd_usb_audio *chip = cval->mixer->chip; |
1da177e4 LT |
295 | unsigned char buf[2]; |
296 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
297 | int timeout = 10; | |
298 | ||
299 | while (timeout-- > 0) { | |
3d8d4dcf | 300 | if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, |
1da177e4 | 301 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
3d8d4dcf | 302 | validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), |
a04395ea | 303 | buf, val_len, 100) >= val_len) { |
1da177e4 LT |
304 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
305 | return 0; | |
306 | } | |
307 | } | |
84957a8a | 308 | snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
b415ec70 | 309 | request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); |
1da177e4 LT |
310 | return -EINVAL; |
311 | } | |
312 | ||
23caaf19 DM |
313 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
314 | { | |
3d8d4dcf | 315 | struct snd_usb_audio *chip = cval->mixer->chip; |
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 | 330 | |
3d8d4dcf | 331 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, |
23caaf19 | 332 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
3d8d4dcf | 333 | validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), |
e8bdb6bb | 334 | buf, size, 1000); |
23caaf19 DM |
335 | |
336 | if (ret < 0) { | |
09414207 | 337 | snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
3d8d4dcf | 338 | request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); |
23caaf19 DM |
339 | return ret; |
340 | } | |
341 | ||
e8bdb6bb DM |
342 | /* FIXME: how should we handle multiple triplets here? */ |
343 | ||
23caaf19 DM |
344 | switch (request) { |
345 | case UAC_GET_CUR: | |
346 | val = buf; | |
347 | break; | |
348 | case UAC_GET_MIN: | |
349 | val = buf + sizeof(__u16); | |
350 | break; | |
351 | case UAC_GET_MAX: | |
352 | val = buf + sizeof(__u16) * 2; | |
353 | break; | |
354 | case UAC_GET_RES: | |
355 | val = buf + sizeof(__u16) * 3; | |
356 | break; | |
357 | default: | |
358 | return -EINVAL; | |
359 | } | |
360 | ||
361 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); | |
362 | ||
363 | return 0; | |
364 | } | |
365 | ||
366 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) | |
367 | { | |
368 | return (cval->mixer->protocol == UAC_VERSION_1) ? | |
369 | get_ctl_value_v1(cval, request, validx, value_ret) : | |
370 | get_ctl_value_v2(cval, request, validx, value_ret); | |
371 | } | |
372 | ||
86e07d34 | 373 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) |
1da177e4 | 374 | { |
de48c7bc | 375 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
376 | } |
377 | ||
378 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
379 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
380 | int channel, int *value) | |
1da177e4 | 381 | { |
de48c7bc | 382 | return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); |
1da177e4 LT |
383 | } |
384 | ||
641b4879 TI |
385 | static int get_cur_mix_value(struct usb_mixer_elem_info *cval, |
386 | int channel, int index, int *value) | |
387 | { | |
388 | int err; | |
389 | ||
390 | if (cval->cached & (1 << channel)) { | |
391 | *value = cval->cache_val[index]; | |
392 | return 0; | |
393 | } | |
394 | err = get_cur_mix_raw(cval, channel, value); | |
395 | if (err < 0) { | |
396 | if (!cval->mixer->ignore_ctl_error) | |
23caaf19 | 397 | snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", |
641b4879 TI |
398 | cval->control, channel, err); |
399 | return err; | |
400 | } | |
401 | cval->cached |= 1 << channel; | |
402 | cval->cache_val[index] = *value; | |
403 | return 0; | |
404 | } | |
405 | ||
406 | ||
1da177e4 LT |
407 | /* |
408 | * set a mixer value | |
409 | */ | |
410 | ||
7b1eda22 DM |
411 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
412 | int request, int validx, int value_set) | |
1da177e4 | 413 | { |
3d8d4dcf | 414 | struct snd_usb_audio *chip = cval->mixer->chip; |
1da177e4 | 415 | unsigned char buf[2]; |
23caaf19 DM |
416 | int val_len, timeout = 10; |
417 | ||
418 | if (cval->mixer->protocol == UAC_VERSION_1) { | |
419 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
420 | } else { /* UAC_VERSION_2 */ | |
421 | /* audio class v2 controls are always 2 bytes in size */ | |
422 | val_len = sizeof(__u16); | |
423 | ||
424 | /* FIXME */ | |
425 | if (request != UAC_SET_CUR) { | |
426 | snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); | |
427 | return -EINVAL; | |
428 | } | |
429 | ||
430 | request = UAC2_CS_CUR; | |
431 | } | |
1da177e4 LT |
432 | |
433 | value_set = convert_bytes_value(cval, value_set); | |
434 | buf[0] = value_set & 0xff; | |
435 | buf[1] = (value_set >> 8) & 0xff; | |
cf3f9130 | 436 | while (timeout-- > 0) |
3d8d4dcf DM |
437 | if (snd_usb_ctl_msg(chip->dev, |
438 | usb_sndctrlpipe(chip->dev, 0), request, | |
1da177e4 | 439 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, |
3d8d4dcf | 440 | validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), |
1da177e4 LT |
441 | buf, val_len, 100) >= 0) |
442 | return 0; | |
84957a8a | 443 | snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
3d8d4dcf | 444 | request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type, buf[0], buf[1]); |
1da177e4 LT |
445 | return -EINVAL; |
446 | } | |
447 | ||
86e07d34 | 448 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) |
1da177e4 | 449 | { |
7b1eda22 | 450 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
451 | } |
452 | ||
641b4879 TI |
453 | static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
454 | int index, int value) | |
1da177e4 | 455 | { |
641b4879 | 456 | int err; |
a6a33259 DM |
457 | unsigned int read_only = (channel == 0) ? |
458 | cval->master_readonly : | |
459 | cval->ch_readonly & (1 << (channel - 1)); | |
460 | ||
461 | if (read_only) { | |
462 | snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", | |
463 | __func__, channel, cval->control); | |
464 | return 0; | |
465 | } | |
466 | ||
7b1eda22 | 467 | err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, |
641b4879 TI |
468 | value); |
469 | if (err < 0) | |
470 | return err; | |
471 | cval->cached |= 1 << channel; | |
472 | cval->cache_val[index] = value; | |
473 | return 0; | |
1da177e4 LT |
474 | } |
475 | ||
7bc5ba7e TI |
476 | /* |
477 | * TLV callback for mixer volume controls | |
478 | */ | |
479 | static int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, | |
480 | unsigned int size, unsigned int __user *_tlv) | |
481 | { | |
482 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 483 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
484 | |
485 | if (size < sizeof(scale)) | |
486 | return -ENOMEM; | |
c3a3e040 JK |
487 | scale[2] = cval->dBmin; |
488 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
489 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
490 | return -EFAULT; | |
491 | return 0; | |
492 | } | |
1da177e4 LT |
493 | |
494 | /* | |
495 | * parser routines begin here... | |
496 | */ | |
497 | ||
86e07d34 | 498 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
499 | |
500 | ||
501 | /* | |
502 | * check if the input/output channel routing is enabled on the given bitmap. | |
503 | * used for mixer unit parser | |
504 | */ | |
505 | static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) | |
506 | { | |
507 | int idx = ich * num_outs + och; | |
508 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
509 | } | |
510 | ||
511 | ||
512 | /* | |
513 | * add an alsa control element | |
514 | * search and increment the index until an empty slot is found. | |
515 | * | |
516 | * if failed, give up and free the control instance. | |
517 | */ | |
518 | ||
86e07d34 | 519 | static int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl) |
1da177e4 | 520 | { |
86e07d34 | 521 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 522 | int err; |
84957a8a CL |
523 | |
524 | while (snd_ctl_find_id(state->chip->card, &kctl->id)) | |
1da177e4 | 525 | kctl->id.index++; |
84957a8a | 526 | if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) { |
1da177e4 | 527 | snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); |
6639b6c2 | 528 | return err; |
1da177e4 | 529 | } |
6639b6c2 CL |
530 | cval->elem_id = &kctl->id; |
531 | cval->next_id_elem = state->mixer->id_elems[cval->id]; | |
532 | state->mixer->id_elems[cval->id] = cval; | |
533 | return 0; | |
1da177e4 LT |
534 | } |
535 | ||
536 | ||
537 | /* | |
538 | * get a terminal name string | |
539 | */ | |
540 | ||
541 | static struct iterm_name_combo { | |
542 | int type; | |
543 | char *name; | |
544 | } iterm_names[] = { | |
545 | { 0x0300, "Output" }, | |
546 | { 0x0301, "Speaker" }, | |
547 | { 0x0302, "Headphone" }, | |
548 | { 0x0303, "HMD Audio" }, | |
549 | { 0x0304, "Desktop Speaker" }, | |
550 | { 0x0305, "Room Speaker" }, | |
551 | { 0x0306, "Com Speaker" }, | |
552 | { 0x0307, "LFE" }, | |
553 | { 0x0600, "External In" }, | |
554 | { 0x0601, "Analog In" }, | |
555 | { 0x0602, "Digital In" }, | |
556 | { 0x0603, "Line" }, | |
557 | { 0x0604, "Legacy In" }, | |
558 | { 0x0605, "IEC958 In" }, | |
559 | { 0x0606, "1394 DA Stream" }, | |
560 | { 0x0607, "1394 DV Stream" }, | |
561 | { 0x0700, "Embedded" }, | |
562 | { 0x0701, "Noise Source" }, | |
563 | { 0x0702, "Equalization Noise" }, | |
564 | { 0x0703, "CD" }, | |
565 | { 0x0704, "DAT" }, | |
566 | { 0x0705, "DCC" }, | |
567 | { 0x0706, "MiniDisk" }, | |
568 | { 0x0707, "Analog Tape" }, | |
569 | { 0x0708, "Phonograph" }, | |
570 | { 0x0709, "VCR Audio" }, | |
571 | { 0x070a, "Video Disk Audio" }, | |
572 | { 0x070b, "DVD Audio" }, | |
573 | { 0x070c, "TV Tuner Audio" }, | |
574 | { 0x070d, "Satellite Rec Audio" }, | |
575 | { 0x070e, "Cable Tuner Audio" }, | |
576 | { 0x070f, "DSS Audio" }, | |
577 | { 0x0710, "Radio Receiver" }, | |
578 | { 0x0711, "Radio Transmitter" }, | |
579 | { 0x0712, "Multi-Track Recorder" }, | |
580 | { 0x0713, "Synthesizer" }, | |
581 | { 0 }, | |
582 | }; | |
583 | ||
86e07d34 | 584 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
585 | unsigned char *name, int maxlen, int term_only) |
586 | { | |
587 | struct iterm_name_combo *names; | |
588 | ||
589 | if (iterm->name) | |
590 | return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); | |
591 | ||
592 | /* virtual type - not a real terminal */ | |
593 | if (iterm->type >> 16) { | |
594 | if (term_only) | |
595 | return 0; | |
596 | switch (iterm->type >> 16) { | |
de48c7bc | 597 | case UAC_SELECTOR_UNIT: |
1da177e4 | 598 | strcpy(name, "Selector"); return 8; |
69da9bcb | 599 | case UAC1_PROCESSING_UNIT: |
1da177e4 | 600 | strcpy(name, "Process Unit"); return 12; |
69da9bcb | 601 | case UAC1_EXTENSION_UNIT: |
1da177e4 | 602 | strcpy(name, "Ext Unit"); return 8; |
de48c7bc | 603 | case UAC_MIXER_UNIT: |
1da177e4 LT |
604 | strcpy(name, "Mixer"); return 5; |
605 | default: | |
606 | return sprintf(name, "Unit %d", iterm->id); | |
607 | } | |
608 | } | |
609 | ||
610 | switch (iterm->type & 0xff00) { | |
611 | case 0x0100: | |
612 | strcpy(name, "PCM"); return 3; | |
613 | case 0x0200: | |
614 | strcpy(name, "Mic"); return 3; | |
615 | case 0x0400: | |
616 | strcpy(name, "Headset"); return 7; | |
617 | case 0x0500: | |
618 | strcpy(name, "Phone"); return 5; | |
619 | } | |
620 | ||
621 | for (names = iterm_names; names->type; names++) | |
622 | if (names->type == iterm->type) { | |
623 | strcpy(name, names->name); | |
624 | return strlen(names->name); | |
625 | } | |
626 | return 0; | |
627 | } | |
628 | ||
629 | ||
630 | /* | |
631 | * parse the source unit recursively until it reaches to a terminal | |
632 | * or a branched unit. | |
633 | */ | |
86e07d34 | 634 | static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) |
1da177e4 | 635 | { |
09414207 | 636 | int err; |
23caaf19 | 637 | void *p1; |
1da177e4 LT |
638 | |
639 | memset(term, 0, sizeof(*term)); | |
640 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 641 | unsigned char *hdr = p1; |
1da177e4 | 642 | term->id = id; |
23caaf19 | 643 | switch (hdr[2]) { |
de48c7bc | 644 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
645 | if (state->mixer->protocol == UAC_VERSION_1) { |
646 | struct uac_input_terminal_descriptor *d = p1; | |
647 | term->type = le16_to_cpu(d->wTerminalType); | |
648 | term->channels = d->bNrChannels; | |
649 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
650 | term->name = d->iTerminal; | |
651 | } else { /* UAC_VERSION_2 */ | |
652 | struct uac2_input_terminal_descriptor *d = p1; | |
653 | term->type = le16_to_cpu(d->wTerminalType); | |
654 | term->channels = d->bNrChannels; | |
655 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
656 | term->name = d->iTerminal; | |
09414207 DM |
657 | |
658 | /* call recursively to get the clock selectors */ | |
659 | err = check_input_term(state, d->bCSourceID, term); | |
660 | if (err < 0) | |
661 | return err; | |
23caaf19 | 662 | } |
1da177e4 | 663 | return 0; |
23caaf19 DM |
664 | case UAC_FEATURE_UNIT: { |
665 | /* the header is the same for v1 and v2 */ | |
666 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 667 | id = d->bSourceID; |
1da177e4 | 668 | break; /* continue to parse */ |
23caaf19 DM |
669 | } |
670 | case UAC_MIXER_UNIT: { | |
671 | struct uac_mixer_unit_descriptor *d = p1; | |
672 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
673 | term->channels = uac_mixer_unit_bNrChannels(d); | |
674 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
675 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 676 | return 0; |
23caaf19 | 677 | } |
09414207 DM |
678 | case UAC_SELECTOR_UNIT: |
679 | case UAC2_CLOCK_SELECTOR: { | |
23caaf19 | 680 | struct uac_selector_unit_descriptor *d = p1; |
1da177e4 | 681 | /* call recursively to retrieve the channel info */ |
23caaf19 | 682 | if (check_input_term(state, d->baSourceID[0], term) < 0) |
1da177e4 | 683 | return -ENODEV; |
23caaf19 | 684 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 685 | term->id = id; |
23caaf19 | 686 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 687 | return 0; |
23caaf19 | 688 | } |
69da9bcb DM |
689 | case UAC1_PROCESSING_UNIT: |
690 | case UAC1_EXTENSION_UNIT: { | |
23caaf19 DM |
691 | struct uac_processing_unit_descriptor *d = p1; |
692 | if (d->bNrInPins) { | |
693 | id = d->baSourceID[0]; | |
1da177e4 LT |
694 | break; /* continue to parse */ |
695 | } | |
23caaf19 DM |
696 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
697 | term->channels = uac_processing_unit_bNrChannels(d); | |
698 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
699 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 700 | return 0; |
23caaf19 | 701 | } |
09414207 DM |
702 | case UAC2_CLOCK_SOURCE: { |
703 | struct uac_clock_source_descriptor *d = p1; | |
704 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
705 | term->id = id; | |
706 | term->name = d->iClockSource; | |
707 | return 0; | |
708 | } | |
1da177e4 LT |
709 | default: |
710 | return -ENODEV; | |
711 | } | |
712 | } | |
713 | return -ENODEV; | |
714 | } | |
715 | ||
716 | ||
717 | /* | |
718 | * Feature Unit | |
719 | */ | |
720 | ||
721 | /* feature unit control information */ | |
722 | struct usb_feature_control_info { | |
723 | const char *name; | |
724 | unsigned int type; /* control type (mute, volume, etc.) */ | |
725 | }; | |
726 | ||
727 | static struct usb_feature_control_info audio_feature_info[] = { | |
2e0281d1 DM |
728 | { "Mute", USB_MIXER_INV_BOOLEAN }, |
729 | { "Volume", USB_MIXER_S16 }, | |
1da177e4 LT |
730 | { "Tone Control - Bass", USB_MIXER_S8 }, |
731 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
732 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
733 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
2e0281d1 DM |
734 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, |
735 | { "Delay Control", USB_MIXER_U16 }, | |
736 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
737 | { "Loudness", USB_MIXER_BOOLEAN }, | |
738 | /* UAC2 specific */ | |
739 | { "Input Gain Control", USB_MIXER_U16 }, | |
740 | { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, | |
741 | { "Phase Inverter Control", USB_MIXER_BOOLEAN }, | |
1da177e4 LT |
742 | }; |
743 | ||
744 | ||
745 | /* private_free callback */ | |
86e07d34 | 746 | static void usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 747 | { |
4d572776 JJ |
748 | kfree(kctl->private_data); |
749 | kctl->private_data = NULL; | |
1da177e4 LT |
750 | } |
751 | ||
752 | ||
753 | /* | |
754 | * interface to ALSA control for feature/mixer units | |
755 | */ | |
756 | ||
757 | /* | |
758 | * retrieve the minimum and maximum values for the specified control | |
759 | */ | |
86e07d34 | 760 | static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) |
1da177e4 LT |
761 | { |
762 | /* for failsafe */ | |
763 | cval->min = default_min; | |
764 | cval->max = cval->min + 1; | |
765 | cval->res = 1; | |
c3a3e040 | 766 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
767 | |
768 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
769 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
770 | cval->initialized = 1; | |
771 | } else { | |
772 | int minchn = 0; | |
773 | if (cval->cmask) { | |
774 | int i; | |
775 | for (i = 0; i < MAX_CHANNELS; i++) | |
776 | if (cval->cmask & (1 << i)) { | |
777 | minchn = i + 1; | |
778 | break; | |
779 | } | |
780 | } | |
de48c7bc DM |
781 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
782 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
84957a8a | 783 | snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", |
1a4e34e6 | 784 | cval->id, snd_usb_ctrl_intf(cval->mixer->chip), cval->control, cval->id); |
1da177e4 LT |
785 | return -EINVAL; |
786 | } | |
de48c7bc | 787 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { |
1da177e4 LT |
788 | cval->res = 1; |
789 | } else { | |
790 | int last_valid_res = cval->res; | |
791 | ||
792 | while (cval->res > 1) { | |
7b1eda22 DM |
793 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
794 | (cval->control << 8) | minchn, cval->res / 2) < 0) | |
1da177e4 LT |
795 | break; |
796 | cval->res /= 2; | |
797 | } | |
de48c7bc | 798 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) |
1da177e4 LT |
799 | cval->res = last_valid_res; |
800 | } | |
801 | if (cval->res == 0) | |
802 | cval->res = 1; | |
14790f1c TI |
803 | |
804 | /* Additional checks for the proper resolution | |
805 | * | |
806 | * Some devices report smaller resolutions than actually | |
807 | * reacting. They don't return errors but simply clip | |
808 | * to the lower aligned value. | |
809 | */ | |
810 | if (cval->min + cval->res < cval->max) { | |
811 | int last_valid_res = cval->res; | |
812 | int saved, test, check; | |
641b4879 | 813 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
814 | for (;;) { |
815 | test = saved; | |
816 | if (test < cval->max) | |
817 | test += cval->res; | |
818 | else | |
819 | test -= cval->res; | |
820 | if (test < cval->min || test > cval->max || | |
641b4879 TI |
821 | set_cur_mix_value(cval, minchn, 0, test) || |
822 | get_cur_mix_raw(cval, minchn, &check)) { | |
14790f1c TI |
823 | cval->res = last_valid_res; |
824 | break; | |
825 | } | |
826 | if (test == check) | |
827 | break; | |
828 | cval->res *= 2; | |
829 | } | |
641b4879 | 830 | set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
831 | } |
832 | ||
1da177e4 LT |
833 | cval->initialized = 1; |
834 | } | |
c3a3e040 JK |
835 | |
836 | /* USB descriptions contain the dB scale in 1/256 dB unit | |
837 | * while ALSA TLV contains in 1/100 dB unit | |
838 | */ | |
839 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
840 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
841 | if (cval->dBmin > cval->dBmax) { | |
842 | /* something is wrong; assume it's either from/to 0dB */ | |
843 | if (cval->dBmin < 0) | |
844 | cval->dBmax = 0; | |
845 | else if (cval->dBmin > 0) | |
846 | cval->dBmin = 0; | |
847 | if (cval->dBmin > cval->dBmax) { | |
848 | /* totally crap, return an error */ | |
849 | return -EINVAL; | |
850 | } | |
851 | } | |
852 | ||
1da177e4 LT |
853 | return 0; |
854 | } | |
855 | ||
856 | ||
857 | /* get a feature/mixer unit info */ | |
86e07d34 | 858 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 859 | { |
86e07d34 | 860 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
861 | |
862 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
863 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
864 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
865 | else | |
866 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
867 | uinfo->count = cval->channels; | |
868 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
869 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
870 | uinfo->value.integer.min = 0; | |
871 | uinfo->value.integer.max = 1; | |
872 | } else { | |
873 | if (! cval->initialized) | |
874 | get_min_max(cval, 0); | |
875 | uinfo->value.integer.min = 0; | |
14790f1c TI |
876 | uinfo->value.integer.max = |
877 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
878 | } |
879 | return 0; | |
880 | } | |
881 | ||
882 | /* get the current value from feature/mixer unit */ | |
86e07d34 | 883 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 884 | { |
86e07d34 | 885 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
886 | int c, cnt, val, err; |
887 | ||
641b4879 | 888 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
889 | if (cval->cmask) { |
890 | cnt = 0; | |
891 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
892 | if (!(cval->cmask & (1 << c))) |
893 | continue; | |
894 | err = get_cur_mix_value(cval, c + 1, cnt, &val); | |
895 | if (err < 0) | |
896 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
897 | val = get_relative_value(cval, val); | |
898 | ucontrol->value.integer.value[cnt] = val; | |
899 | cnt++; | |
1da177e4 | 900 | } |
641b4879 | 901 | return 0; |
1da177e4 LT |
902 | } else { |
903 | /* master channel */ | |
641b4879 TI |
904 | err = get_cur_mix_value(cval, 0, 0, &val); |
905 | if (err < 0) | |
906 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1da177e4 LT |
907 | val = get_relative_value(cval, val); |
908 | ucontrol->value.integer.value[0] = val; | |
909 | } | |
910 | return 0; | |
911 | } | |
912 | ||
913 | /* put the current value to feature/mixer unit */ | |
86e07d34 | 914 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 915 | { |
86e07d34 | 916 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
917 | int c, cnt, val, oval, err; |
918 | int changed = 0; | |
919 | ||
920 | if (cval->cmask) { | |
921 | cnt = 0; | |
922 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
923 | if (!(cval->cmask & (1 << c))) |
924 | continue; | |
925 | err = get_cur_mix_value(cval, c + 1, cnt, &oval); | |
926 | if (err < 0) | |
927 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
928 | val = ucontrol->value.integer.value[cnt]; | |
929 | val = get_abs_value(cval, val); | |
930 | if (oval != val) { | |
931 | set_cur_mix_value(cval, c + 1, cnt, val); | |
932 | changed = 1; | |
1da177e4 | 933 | } |
641b4879 | 934 | cnt++; |
1da177e4 LT |
935 | } |
936 | } else { | |
937 | /* master channel */ | |
641b4879 | 938 | err = get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 939 | if (err < 0) |
641b4879 | 940 | return cval->mixer->ignore_ctl_error ? 0 : err; |
1da177e4 LT |
941 | val = ucontrol->value.integer.value[0]; |
942 | val = get_abs_value(cval, val); | |
943 | if (val != oval) { | |
641b4879 | 944 | set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
945 | changed = 1; |
946 | } | |
947 | } | |
948 | return changed; | |
949 | } | |
950 | ||
86e07d34 | 951 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
952 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
953 | .name = "", /* will be filled later manually */ | |
954 | .info = mixer_ctl_feature_info, | |
955 | .get = mixer_ctl_feature_get, | |
956 | .put = mixer_ctl_feature_put, | |
957 | }; | |
958 | ||
23caaf19 DM |
959 | /* the read-only variant */ |
960 | static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { | |
961 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
962 | .name = "", /* will be filled later manually */ | |
963 | .info = mixer_ctl_feature_info, | |
964 | .get = mixer_ctl_feature_get, | |
965 | .put = NULL, | |
966 | }; | |
967 | ||
1da177e4 LT |
968 | |
969 | /* | |
970 | * build a feature control | |
971 | */ | |
972 | ||
08d1e635 TI |
973 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
974 | { | |
975 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
976 | } | |
977 | ||
99fc8645 | 978 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 979 | unsigned int ctl_mask, int control, |
23caaf19 | 980 | struct usb_audio_term *iterm, int unitid, |
a6a33259 | 981 | int readonly_mask) |
1da177e4 | 982 | { |
99fc8645 | 983 | struct uac_feature_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
984 | unsigned int len = 0; |
985 | int mapped_name = 0; | |
99fc8645 | 986 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
987 | struct snd_kcontrol *kctl; |
988 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 989 | const struct usbmix_name_map *map; |
1da177e4 LT |
990 | |
991 | control++; /* change from zero-based to 1-based value */ | |
992 | ||
65f25da4 | 993 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
994 | /* FIXME: not supported yet */ |
995 | return; | |
996 | } | |
997 | ||
c3a3e040 JK |
998 | map = find_map(state, unitid, control); |
999 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1000 | return; |
1001 | ||
561b220a | 1002 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1003 | if (! cval) { |
1004 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1005 | return; | |
1006 | } | |
84957a8a | 1007 | cval->mixer = state->mixer; |
1da177e4 LT |
1008 | cval->id = unitid; |
1009 | cval->control = control; | |
1010 | cval->cmask = ctl_mask; | |
1011 | cval->val_type = audio_feature_info[control-1].type; | |
a6a33259 | 1012 | if (ctl_mask == 0) { |
1da177e4 | 1013 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
1014 | cval->master_readonly = readonly_mask; |
1015 | } else { | |
1da177e4 LT |
1016 | int i, c = 0; |
1017 | for (i = 0; i < 16; i++) | |
1018 | if (ctl_mask & (1 << i)) | |
1019 | c++; | |
1020 | cval->channels = c; | |
a6a33259 | 1021 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
1022 | } |
1023 | ||
1024 | /* get min/max values */ | |
1025 | get_min_max(cval, 0); | |
1026 | ||
a6a33259 DM |
1027 | /* if all channels in the mask are marked read-only, make the control |
1028 | * read-only. set_cur_mix_value() will check the mask again and won't | |
1029 | * issue write commands to read-only channels. */ | |
1030 | if (cval->channels == readonly_mask) | |
23caaf19 DM |
1031 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1032 | else | |
1033 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1034 | ||
1da177e4 LT |
1035 | if (! kctl) { |
1036 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1037 | kfree(cval); | |
1038 | return; | |
1039 | } | |
1040 | kctl->private_free = usb_mixer_elem_free; | |
1041 | ||
c3a3e040 | 1042 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1043 | mapped_name = len != 0; |
1044 | if (! len && nameid) | |
c3a3e040 JK |
1045 | len = snd_usb_copy_string_desc(state, nameid, |
1046 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
1047 | |
1048 | switch (control) { | |
65f25da4 DM |
1049 | case UAC_FU_MUTE: |
1050 | case UAC_FU_VOLUME: | |
1da177e4 LT |
1051 | /* determine the control name. the rule is: |
1052 | * - if a name id is given in descriptor, use it. | |
1053 | * - if the connected input can be determined, then use the name | |
1054 | * of terminal type. | |
1055 | * - if the connected output can be determined, use it. | |
1056 | * - otherwise, anonymous name. | |
1057 | */ | |
1058 | if (! len) { | |
1059 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1060 | if (! len) | |
1061 | len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1062 | if (! len) | |
1063 | len = snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1064 | "Feature %d", unitid); | |
1065 | } | |
1066 | /* determine the stream direction: | |
1067 | * if the connected output is USB stream, then it's likely a | |
1068 | * capture stream. otherwise it should be playback (hopefully :) | |
1069 | */ | |
1070 | if (! mapped_name && ! (state->oterm.type >> 16)) { | |
1071 | if ((state->oterm.type & 0xff00) == 0x0100) { | |
08d1e635 | 1072 | len = append_ctl_name(kctl, " Capture"); |
1da177e4 | 1073 | } else { |
08d1e635 | 1074 | len = append_ctl_name(kctl, " Playback"); |
1da177e4 LT |
1075 | } |
1076 | } | |
65f25da4 | 1077 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1078 | " Switch" : " Volume"); |
65f25da4 | 1079 | if (control == UAC_FU_VOLUME) { |
7bc5ba7e TI |
1080 | kctl->tlv.c = mixer_vol_tlv; |
1081 | kctl->vd[0].access |= | |
1082 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1083 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
c3a3e040 | 1084 | check_mapped_dB(map, cval); |
7bc5ba7e | 1085 | } |
1da177e4 LT |
1086 | break; |
1087 | ||
1088 | default: | |
1089 | if (! len) | |
1090 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, | |
1091 | sizeof(kctl->id.name)); | |
1092 | break; | |
1093 | } | |
1094 | ||
2cf313ee | 1095 | /* volume control quirks */ |
27d10f56 CL |
1096 | switch (state->chip->usb_id) { |
1097 | case USB_ID(0x0471, 0x0101): | |
1098 | case USB_ID(0x0471, 0x0104): | |
1099 | case USB_ID(0x0471, 0x0105): | |
1100 | case USB_ID(0x0672, 0x1041): | |
2cf313ee AF |
1101 | /* quirk for UDA1321/N101. |
1102 | * note that detection between firmware 2.1.1.7 (N101) | |
1103 | * and later 2.1.1.21 is not very clear from datasheets. | |
1104 | * I hope that the min value is -15360 for newer firmware --jk | |
1105 | */ | |
27d10f56 CL |
1106 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && |
1107 | cval->min == -15616) { | |
2cf313ee AF |
1108 | snd_printk(KERN_INFO |
1109 | "set volume quirk for UDA1321/N101 chip\n"); | |
27d10f56 CL |
1110 | cval->max = -256; |
1111 | } | |
2cf313ee AF |
1112 | break; |
1113 | ||
1114 | case USB_ID(0x046d, 0x09a4): | |
1115 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
1116 | snd_printk(KERN_INFO | |
1117 | "set volume quirk for QuickCam E3500\n"); | |
1118 | cval->min = 6080; | |
1119 | cval->max = 8768; | |
1120 | cval->res = 192; | |
1121 | } | |
1122 | break; | |
1123 | ||
a5c7d797 AF |
1124 | case USB_ID(0x046d, 0x0809): |
1125 | case USB_ID(0x046d, 0x0991): | |
1126 | /* Most audio usb devices lie about volume resolution. | |
1127 | * Most Logitech webcams have res = 384. | |
1128 | * Proboly there is some logitech magic behind this number --fishor | |
1129 | */ | |
1130 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
1131 | snd_printk(KERN_INFO | |
1132 | "set resolution quirk: cval->res = 384\n"); | |
1133 | cval->res = 384; | |
1134 | } | |
1135 | break; | |
1136 | ||
1da177e4 LT |
1137 | } |
1138 | ||
1139 | snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", | |
1140 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); | |
84957a8a | 1141 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1142 | } |
1143 | ||
1144 | ||
1145 | ||
1146 | /* | |
1147 | * parse a feature unit | |
1148 | * | |
1149 | * most of controlls are defined here. | |
1150 | */ | |
28e1b773 | 1151 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) |
1da177e4 LT |
1152 | { |
1153 | int channels, i, j; | |
86e07d34 | 1154 | struct usb_audio_term iterm; |
1da177e4 LT |
1155 | unsigned int master_bits, first_ch_bits; |
1156 | int err, csize; | |
23caaf19 DM |
1157 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1158 | __u8 *bmaControls; | |
1159 | ||
1160 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1161 | csize = hdr->bControlSize; | |
1162 | channels = (hdr->bLength - 7) / csize - 1; | |
1163 | bmaControls = hdr->bmaControls; | |
1164 | } else { | |
1165 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
1166 | csize = 4; | |
e8d0fee7 | 1167 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 DM |
1168 | bmaControls = ftr->bmaControls; |
1169 | } | |
1da177e4 | 1170 | |
23caaf19 | 1171 | if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { |
de48c7bc | 1172 | snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); |
1da177e4 LT |
1173 | return -EINVAL; |
1174 | } | |
1175 | ||
1176 | /* parse the source unit */ | |
23caaf19 | 1177 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1178 | return err; |
1179 | ||
1180 | /* determine the input source type and name */ | |
23caaf19 | 1181 | if (check_input_term(state, hdr->bSourceID, &iterm) < 0) |
1da177e4 LT |
1182 | return -EINVAL; |
1183 | ||
23caaf19 | 1184 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1185 | /* master configuration quirks */ |
1186 | switch (state->chip->usb_id) { | |
1187 | case USB_ID(0x08bb, 0x2702): | |
1188 | snd_printk(KERN_INFO | |
1189 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
1190 | /* disable non-functional volume control */ | |
65f25da4 | 1191 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 JK |
1192 | break; |
1193 | } | |
1da177e4 | 1194 | if (channels > 0) |
23caaf19 | 1195 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1196 | else |
1197 | first_ch_bits = 0; | |
23caaf19 DM |
1198 | |
1199 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1200 | /* check all control types */ | |
1201 | for (i = 0; i < 10; i++) { | |
1202 | unsigned int ch_bits = 0; | |
1203 | for (j = 0; j < channels; j++) { | |
1204 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
1205 | if (mask & (1 << i)) | |
1206 | ch_bits |= (1 << j); | |
1207 | } | |
1208 | /* audio class v1 controls are never read-only */ | |
1209 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ | |
1210 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); | |
1211 | if (master_bits & (1 << i)) | |
1212 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); | |
1213 | } | |
1214 | } else { /* UAC_VERSION_2 */ | |
1215 | for (i = 0; i < 30/2; i++) { | |
23caaf19 DM |
1216 | unsigned int ch_bits = 0; |
1217 | unsigned int ch_read_only = 0; | |
1218 | ||
1219 | for (j = 0; j < channels; j++) { | |
1220 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
dcbe7bcf | 1221 | if (uac2_control_is_readable(mask, i)) { |
23caaf19 | 1222 | ch_bits |= (1 << j); |
dcbe7bcf | 1223 | if (!uac2_control_is_writeable(mask, i)) |
23caaf19 DM |
1224 | ch_read_only |= (1 << j); |
1225 | } | |
1226 | } | |
1227 | ||
a6a33259 DM |
1228 | /* NOTE: build_feature_ctl() will mark the control read-only if all channels |
1229 | * are marked read-only in the descriptors. Otherwise, the control will be | |
1230 | * reported as writeable, but the driver will not actually issue a write | |
1231 | * command for read-only channels */ | |
23caaf19 | 1232 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ |
a6a33259 | 1233 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); |
dcbe7bcf | 1234 | if (uac2_control_is_readable(master_bits, i)) |
23caaf19 | 1235 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
dcbe7bcf | 1236 | !uac2_control_is_writeable(master_bits, i)); |
1da177e4 | 1237 | } |
1da177e4 LT |
1238 | } |
1239 | ||
1240 | return 0; | |
1241 | } | |
1242 | ||
1243 | ||
1244 | /* | |
1245 | * Mixer Unit | |
1246 | */ | |
1247 | ||
1248 | /* | |
1249 | * build a mixer unit control | |
1250 | * | |
1251 | * the callbacks are identical with feature unit. | |
1252 | * input channel number (zero based) is given in control field instead. | |
1253 | */ | |
1254 | ||
99fc8645 DM |
1255 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1256 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1257 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1258 | struct usb_audio_term *iterm) |
1da177e4 | 1259 | { |
86e07d34 | 1260 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1261 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1262 | unsigned int i, len; |
86e07d34 | 1263 | struct snd_kcontrol *kctl; |
c3a3e040 | 1264 | const struct usbmix_name_map *map; |
1da177e4 | 1265 | |
c3a3e040 JK |
1266 | map = find_map(state, unitid, 0); |
1267 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1268 | return; |
1269 | ||
561b220a | 1270 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1271 | if (! cval) |
1272 | return; | |
1273 | ||
84957a8a | 1274 | cval->mixer = state->mixer; |
1da177e4 LT |
1275 | cval->id = unitid; |
1276 | cval->control = in_ch + 1; /* based on 1 */ | |
1277 | cval->val_type = USB_MIXER_S16; | |
1278 | for (i = 0; i < num_outs; i++) { | |
23caaf19 | 1279 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { |
1da177e4 LT |
1280 | cval->cmask |= (1 << i); |
1281 | cval->channels++; | |
1282 | } | |
1283 | } | |
1284 | ||
1285 | /* get min/max values */ | |
1286 | get_min_max(cval, 0); | |
1287 | ||
1288 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1289 | if (! kctl) { | |
1290 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1291 | kfree(cval); | |
1292 | return; | |
1293 | } | |
1294 | kctl->private_free = usb_mixer_elem_free; | |
1295 | ||
c3a3e040 | 1296 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1297 | if (! len) |
1298 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); | |
1299 | if (! len) | |
1300 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); | |
08d1e635 | 1301 | append_ctl_name(kctl, " Volume"); |
1da177e4 LT |
1302 | |
1303 | snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", | |
1304 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1305 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1306 | } |
1307 | ||
1308 | ||
1309 | /* | |
1310 | * parse a mixer unit | |
1311 | */ | |
99fc8645 | 1312 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1313 | { |
99fc8645 | 1314 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1315 | struct usb_audio_term iterm; |
1da177e4 LT |
1316 | int input_pins, num_ins, num_outs; |
1317 | int pin, ich, err; | |
1318 | ||
99fc8645 | 1319 | if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { |
1da177e4 LT |
1320 | snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); |
1321 | return -EINVAL; | |
1322 | } | |
1323 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
99fc8645 | 1324 | if (desc->bLength <= 10 + input_pins) { |
1da177e4 LT |
1325 | snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); |
1326 | return 0; | |
1327 | } | |
1328 | ||
1329 | num_ins = 0; | |
1330 | ich = 0; | |
1331 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1332 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 LT |
1333 | if (err < 0) |
1334 | return err; | |
99fc8645 | 1335 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1336 | if (err < 0) |
1337 | return err; | |
1338 | num_ins += iterm.channels; | |
1339 | for (; ich < num_ins; ++ich) { | |
1340 | int och, ich_has_controls = 0; | |
1341 | ||
1342 | for (och = 0; och < num_outs; ++och) { | |
23caaf19 | 1343 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), |
1da177e4 LT |
1344 | ich, och, num_outs)) { |
1345 | ich_has_controls = 1; | |
1346 | break; | |
1347 | } | |
1348 | } | |
1349 | if (ich_has_controls) | |
1350 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1351 | unitid, &iterm); | |
1352 | } | |
1353 | } | |
1354 | return 0; | |
1355 | } | |
1356 | ||
1357 | ||
1358 | /* | |
1359 | * Processing Unit / Extension Unit | |
1360 | */ | |
1361 | ||
1362 | /* get callback for processing/extension unit */ | |
86e07d34 | 1363 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1364 | { |
86e07d34 | 1365 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1366 | int err, val; |
1367 | ||
1368 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
84957a8a | 1369 | if (err < 0 && cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1370 | ucontrol->value.integer.value[0] = cval->min; |
1371 | return 0; | |
1372 | } | |
1373 | if (err < 0) | |
1374 | return err; | |
1375 | val = get_relative_value(cval, val); | |
1376 | ucontrol->value.integer.value[0] = val; | |
1377 | return 0; | |
1378 | } | |
1379 | ||
1380 | /* put callback for processing/extension unit */ | |
86e07d34 | 1381 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1382 | { |
86e07d34 | 1383 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1384 | int val, oval, err; |
1385 | ||
1386 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
1387 | if (err < 0) { | |
84957a8a | 1388 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1389 | return 0; |
1390 | return err; | |
1391 | } | |
1392 | val = ucontrol->value.integer.value[0]; | |
1393 | val = get_abs_value(cval, val); | |
1394 | if (val != oval) { | |
1395 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1396 | return 1; | |
1397 | } | |
1398 | return 0; | |
1399 | } | |
1400 | ||
1401 | /* alsa control interface for processing/extension unit */ | |
86e07d34 | 1402 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1403 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1404 | .name = "", /* will be filled later */ | |
1405 | .info = mixer_ctl_feature_info, | |
1406 | .get = mixer_ctl_procunit_get, | |
1407 | .put = mixer_ctl_procunit_put, | |
1408 | }; | |
1409 | ||
1410 | ||
1411 | /* | |
1412 | * predefined data for processing units | |
1413 | */ | |
1414 | struct procunit_value_info { | |
1415 | int control; | |
1416 | char *suffix; | |
1417 | int val_type; | |
1418 | int min_value; | |
1419 | }; | |
1420 | ||
1421 | struct procunit_info { | |
1422 | int type; | |
1423 | char *name; | |
1424 | struct procunit_value_info *values; | |
1425 | }; | |
1426 | ||
1427 | static struct procunit_value_info updown_proc_info[] = { | |
65f25da4 DM |
1428 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1429 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1430 | { 0 } |
1431 | }; | |
1432 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
1433 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1434 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1435 | { 0 } |
1436 | }; | |
1437 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
1438 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1439 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
1440 | { 0 } |
1441 | }; | |
1442 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
1443 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1444 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1445 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1446 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
1447 | { 0 } |
1448 | }; | |
1449 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
1450 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1451 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1452 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1453 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
1454 | { 0 } |
1455 | }; | |
1456 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
1457 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1458 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
1459 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
1460 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1461 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
1462 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
1463 | { 0 } |
1464 | }; | |
1465 | ||
1466 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
1467 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
1468 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1469 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
1470 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
1471 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
1472 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
1473 | { 0 }, |
1474 | }; | |
7d2b451e SK |
1475 | /* |
1476 | * predefined data for extension units | |
1477 | */ | |
1478 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1479 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1480 | { 0 } | |
7d2b451e SK |
1481 | }; |
1482 | static struct procunit_value_info clock_source_xu_info[] = { | |
1483 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1484 | { 0 } | |
1485 | }; | |
1486 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1487 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1488 | { 0 } | |
1489 | }; | |
1490 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1491 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1492 | { 0 } | |
1493 | }; | |
1494 | static struct procunit_info extunits[] = { | |
1495 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1496 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1497 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1498 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1499 | { 0 } | |
1500 | }; | |
1da177e4 LT |
1501 | /* |
1502 | * build a processing/extension unit | |
1503 | */ | |
99fc8645 | 1504 | static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) |
1da177e4 | 1505 | { |
99fc8645 DM |
1506 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1507 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1508 | struct usb_mixer_elem_info *cval; |
1509 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1510 | int i, err, nameid, type, len; |
1511 | struct procunit_info *info; | |
1512 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1513 | const struct usbmix_name_map *map; |
1da177e4 LT |
1514 | static struct procunit_value_info default_value_info[] = { |
1515 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1516 | { 0 } | |
1517 | }; | |
1518 | static struct procunit_info default_info = { | |
1519 | 0, NULL, default_value_info | |
1520 | }; | |
1521 | ||
23caaf19 DM |
1522 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1523 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
1da177e4 LT |
1524 | snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); |
1525 | return -EINVAL; | |
1526 | } | |
1527 | ||
1528 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1529 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1530 | return err; |
1531 | } | |
1532 | ||
99fc8645 | 1533 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1534 | for (info = list; info && info->type; info++) |
1535 | if (info->type == type) | |
1536 | break; | |
1537 | if (! info || ! info->type) | |
1538 | info = &default_info; | |
1539 | ||
1540 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1541 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 DM |
1542 | |
1543 | if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) | |
1da177e4 | 1544 | continue; |
c3a3e040 JK |
1545 | map = find_map(state, unitid, valinfo->control); |
1546 | if (check_ignored_ctl(map)) | |
1da177e4 | 1547 | continue; |
561b220a | 1548 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1549 | if (! cval) { |
1550 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1551 | return -ENOMEM; | |
1552 | } | |
84957a8a | 1553 | cval->mixer = state->mixer; |
1da177e4 LT |
1554 | cval->id = unitid; |
1555 | cval->control = valinfo->control; | |
1556 | cval->val_type = valinfo->val_type; | |
1557 | cval->channels = 1; | |
1558 | ||
1559 | /* get min/max values */ | |
65f25da4 | 1560 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
23caaf19 | 1561 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1562 | /* FIXME: hard-coded */ |
1563 | cval->min = 1; | |
99fc8645 | 1564 | cval->max = control_spec[0]; |
1da177e4 LT |
1565 | cval->res = 1; |
1566 | cval->initialized = 1; | |
7d2b451e SK |
1567 | } else { |
1568 | if (type == USB_XU_CLOCK_RATE) { | |
1569 | /* E-Mu USB 0404/0202/TrackerPre | |
1570 | * samplerate control quirk | |
1571 | */ | |
1572 | cval->min = 0; | |
1573 | cval->max = 5; | |
1574 | cval->res = 1; | |
1575 | cval->initialized = 1; | |
1576 | } else | |
1577 | get_min_max(cval, valinfo->min_value); | |
1578 | } | |
1da177e4 LT |
1579 | |
1580 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
1581 | if (! kctl) { | |
1582 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1583 | kfree(cval); | |
1584 | return -ENOMEM; | |
1585 | } | |
1586 | kctl->private_free = usb_mixer_elem_free; | |
1587 | ||
c3a3e040 JK |
1588 | if (check_mapped_name(map, kctl->id.name, |
1589 | sizeof(kctl->id.name))) | |
1590 | /* nothing */ ; | |
1da177e4 LT |
1591 | else if (info->name) |
1592 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); | |
1593 | else { | |
23caaf19 | 1594 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1595 | len = 0; |
1596 | if (nameid) | |
1597 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1598 | if (! len) | |
1599 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); | |
1600 | } | |
08d1e635 TI |
1601 | append_ctl_name(kctl, " "); |
1602 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 LT |
1603 | |
1604 | snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", | |
1605 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1606 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1607 | return err; |
1608 | } | |
1609 | return 0; | |
1610 | } | |
1611 | ||
1612 | ||
99fc8645 | 1613 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1614 | { |
99fc8645 | 1615 | return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); |
1da177e4 LT |
1616 | } |
1617 | ||
99fc8645 | 1618 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1619 | { |
99fc8645 DM |
1620 | /* Note that we parse extension units with processing unit descriptors. |
1621 | * That's ok as the layout is the same */ | |
1622 | return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); | |
1da177e4 LT |
1623 | } |
1624 | ||
1625 | ||
1626 | /* | |
1627 | * Selector Unit | |
1628 | */ | |
1629 | ||
1630 | /* info callback for selector unit | |
1631 | * use an enumerator type for routing | |
1632 | */ | |
86e07d34 | 1633 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 1634 | { |
86e07d34 | 1635 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
2a1803a7 | 1636 | const char **itemlist = (const char **)kcontrol->private_value; |
1da177e4 | 1637 | |
5e246b85 TI |
1638 | if (snd_BUG_ON(!itemlist)) |
1639 | return -EINVAL; | |
2a1803a7 | 1640 | return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); |
1da177e4 LT |
1641 | } |
1642 | ||
1643 | /* get callback for selector unit */ | |
86e07d34 | 1644 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1645 | { |
86e07d34 | 1646 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1647 | int val, err; |
1648 | ||
09414207 | 1649 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 1650 | if (err < 0) { |
84957a8a | 1651 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1652 | ucontrol->value.enumerated.item[0] = 0; |
1653 | return 0; | |
1654 | } | |
1655 | return err; | |
1656 | } | |
1657 | val = get_relative_value(cval, val); | |
1658 | ucontrol->value.enumerated.item[0] = val; | |
1659 | return 0; | |
1660 | } | |
1661 | ||
1662 | /* put callback for selector unit */ | |
86e07d34 | 1663 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1664 | { |
86e07d34 | 1665 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1666 | int val, oval, err; |
1667 | ||
09414207 | 1668 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
1da177e4 | 1669 | if (err < 0) { |
84957a8a | 1670 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1671 | return 0; |
1672 | return err; | |
1673 | } | |
1674 | val = ucontrol->value.enumerated.item[0]; | |
1675 | val = get_abs_value(cval, val); | |
1676 | if (val != oval) { | |
09414207 | 1677 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
1678 | return 1; |
1679 | } | |
1680 | return 0; | |
1681 | } | |
1682 | ||
1683 | /* alsa control interface for selector unit */ | |
86e07d34 | 1684 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
1685 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1686 | .name = "", /* will be filled later */ | |
1687 | .info = mixer_ctl_selector_info, | |
1688 | .get = mixer_ctl_selector_get, | |
1689 | .put = mixer_ctl_selector_put, | |
1690 | }; | |
1691 | ||
1692 | ||
1693 | /* private free callback. | |
1694 | * free both private_data and private_value | |
1695 | */ | |
86e07d34 | 1696 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
1697 | { |
1698 | int i, num_ins = 0; | |
1699 | ||
1700 | if (kctl->private_data) { | |
86e07d34 | 1701 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
1702 | num_ins = cval->max; |
1703 | kfree(cval); | |
1704 | kctl->private_data = NULL; | |
1705 | } | |
1706 | if (kctl->private_value) { | |
1707 | char **itemlist = (char **)kctl->private_value; | |
1708 | for (i = 0; i < num_ins; i++) | |
1709 | kfree(itemlist[i]); | |
1710 | kfree(itemlist); | |
1711 | kctl->private_value = 0; | |
1712 | } | |
1713 | } | |
1714 | ||
1715 | /* | |
1716 | * parse a selector unit | |
1717 | */ | |
99fc8645 | 1718 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1719 | { |
99fc8645 | 1720 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1721 | unsigned int i, nameid, len; |
1722 | int err; | |
86e07d34 TI |
1723 | struct usb_mixer_elem_info *cval; |
1724 | struct snd_kcontrol *kctl; | |
c3a3e040 | 1725 | const struct usbmix_name_map *map; |
1da177e4 LT |
1726 | char **namelist; |
1727 | ||
99fc8645 | 1728 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
1da177e4 LT |
1729 | snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); |
1730 | return -EINVAL; | |
1731 | } | |
1732 | ||
99fc8645 DM |
1733 | for (i = 0; i < desc->bNrInPins; i++) { |
1734 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
1735 | return err; |
1736 | } | |
1737 | ||
99fc8645 | 1738 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
1739 | return 0; |
1740 | ||
c3a3e040 JK |
1741 | map = find_map(state, unitid, 0); |
1742 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1743 | return 0; |
1744 | ||
561b220a | 1745 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1746 | if (! cval) { |
1747 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1748 | return -ENOMEM; | |
1749 | } | |
84957a8a | 1750 | cval->mixer = state->mixer; |
1da177e4 LT |
1751 | cval->id = unitid; |
1752 | cval->val_type = USB_MIXER_U8; | |
1753 | cval->channels = 1; | |
1754 | cval->min = 1; | |
99fc8645 | 1755 | cval->max = desc->bNrInPins; |
1da177e4 LT |
1756 | cval->res = 1; |
1757 | cval->initialized = 1; | |
1758 | ||
09414207 DM |
1759 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
1760 | cval->control = UAC2_CX_CLOCK_SELECTOR; | |
1761 | else | |
1762 | cval->control = 0; | |
1763 | ||
99fc8645 | 1764 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
1da177e4 LT |
1765 | if (! namelist) { |
1766 | snd_printk(KERN_ERR "cannot malloc\n"); | |
1767 | kfree(cval); | |
1768 | return -ENOMEM; | |
1769 | } | |
1770 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 1771 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 1772 | struct usb_audio_term iterm; |
1da177e4 LT |
1773 | len = 0; |
1774 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
1775 | if (! namelist[i]) { | |
1776 | snd_printk(KERN_ERR "cannot malloc\n"); | |
7fbe3ca5 | 1777 | while (i--) |
1da177e4 LT |
1778 | kfree(namelist[i]); |
1779 | kfree(namelist); | |
1780 | kfree(cval); | |
1781 | return -ENOMEM; | |
1782 | } | |
8e062ec7 CL |
1783 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
1784 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 1785 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
1786 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
1787 | if (! len) | |
1788 | sprintf(namelist[i], "Input %d", i); | |
1789 | } | |
1790 | ||
1791 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
1792 | if (! kctl) { | |
1793 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
878b4789 | 1794 | kfree(namelist); |
1da177e4 LT |
1795 | kfree(cval); |
1796 | return -ENOMEM; | |
1797 | } | |
1798 | kctl->private_value = (unsigned long)namelist; | |
1799 | kctl->private_free = usb_mixer_selector_elem_free; | |
1800 | ||
99fc8645 | 1801 | nameid = uac_selector_unit_iSelector(desc); |
c3a3e040 | 1802 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1803 | if (len) |
1804 | ; | |
1805 | else if (nameid) | |
1806 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1807 | else { | |
1808 | len = get_term_name(state, &state->oterm, | |
1809 | kctl->id.name, sizeof(kctl->id.name), 0); | |
1810 | if (! len) | |
1811 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); | |
1812 | ||
09414207 DM |
1813 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
1814 | append_ctl_name(kctl, " Clock Source"); | |
1815 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 1816 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 1817 | else |
08d1e635 | 1818 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
1819 | } |
1820 | ||
1821 | snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", | |
99fc8645 | 1822 | cval->id, kctl->id.name, desc->bNrInPins); |
84957a8a | 1823 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1824 | return err; |
1825 | ||
1826 | return 0; | |
1827 | } | |
1828 | ||
1829 | ||
1830 | /* | |
1831 | * parse an audio unit recursively | |
1832 | */ | |
1833 | ||
86e07d34 | 1834 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
1835 | { |
1836 | unsigned char *p1; | |
1837 | ||
1838 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
1839 | return 0; /* the unit already visited */ | |
1840 | ||
1841 | p1 = find_audio_control_unit(state, unitid); | |
1842 | if (!p1) { | |
1843 | snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); | |
1844 | return -EINVAL; | |
1845 | } | |
1846 | ||
1847 | switch (p1[2]) { | |
de48c7bc | 1848 | case UAC_INPUT_TERMINAL: |
09414207 | 1849 | case UAC2_CLOCK_SOURCE: |
1da177e4 | 1850 | return 0; /* NOP */ |
de48c7bc | 1851 | case UAC_MIXER_UNIT: |
1da177e4 | 1852 | return parse_audio_mixer_unit(state, unitid, p1); |
de48c7bc | 1853 | case UAC_SELECTOR_UNIT: |
09414207 | 1854 | case UAC2_CLOCK_SELECTOR: |
1da177e4 | 1855 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 1856 | case UAC_FEATURE_UNIT: |
1da177e4 | 1857 | return parse_audio_feature_unit(state, unitid, p1); |
69da9bcb | 1858 | case UAC1_PROCESSING_UNIT: |
23caaf19 DM |
1859 | /* UAC2_EFFECT_UNIT has the same value */ |
1860 | if (state->mixer->protocol == UAC_VERSION_1) | |
1861 | return parse_audio_processing_unit(state, unitid, p1); | |
1862 | else | |
1863 | return 0; /* FIXME - effect units not implemented yet */ | |
69da9bcb | 1864 | case UAC1_EXTENSION_UNIT: |
23caaf19 DM |
1865 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
1866 | if (state->mixer->protocol == UAC_VERSION_1) | |
1867 | return parse_audio_extension_unit(state, unitid, p1); | |
1868 | else /* UAC_VERSION_2 */ | |
1869 | return parse_audio_processing_unit(state, unitid, p1); | |
1da177e4 LT |
1870 | default: |
1871 | snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1872 | return -EINVAL; | |
1873 | } | |
1874 | } | |
1875 | ||
84957a8a CL |
1876 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
1877 | { | |
6639b6c2 CL |
1878 | kfree(mixer->id_elems); |
1879 | if (mixer->urb) { | |
1880 | kfree(mixer->urb->transfer_buffer); | |
1881 | usb_free_urb(mixer->urb); | |
1882 | } | |
68df9de1 | 1883 | usb_free_urb(mixer->rc_urb); |
b259b10c | 1884 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
1885 | kfree(mixer); |
1886 | } | |
1887 | ||
86e07d34 | 1888 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
1889 | { |
1890 | struct usb_mixer_interface *mixer = device->device_data; | |
1891 | snd_usb_mixer_free(mixer); | |
1892 | return 0; | |
1893 | } | |
1894 | ||
1da177e4 LT |
1895 | /* |
1896 | * create mixer controls | |
1897 | * | |
de48c7bc | 1898 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 1899 | */ |
84957a8a | 1900 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 1901 | { |
86e07d34 | 1902 | struct mixer_build state; |
1da177e4 LT |
1903 | int err; |
1904 | const struct usbmix_ctl_map *map; | |
84957a8a | 1905 | struct usb_host_interface *hostif; |
23caaf19 | 1906 | void *p; |
1da177e4 | 1907 | |
3d8d4dcf | 1908 | hostif = mixer->chip->ctrl_intf; |
1da177e4 | 1909 | memset(&state, 0, sizeof(state)); |
84957a8a CL |
1910 | state.chip = mixer->chip; |
1911 | state.mixer = mixer; | |
1da177e4 LT |
1912 | state.buffer = hostif->extra; |
1913 | state.buflen = hostif->extralen; | |
1da177e4 LT |
1914 | |
1915 | /* check the mapping table */ | |
27d10f56 CL |
1916 | for (map = usbmix_ctl_maps; map->id; map++) { |
1917 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 1918 | state.map = map->map; |
8e062ec7 | 1919 | state.selector_map = map->selector_map; |
84957a8a | 1920 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
1921 | break; |
1922 | } | |
1923 | } | |
1da177e4 | 1924 | |
23caaf19 DM |
1925 | p = NULL; |
1926 | while ((p = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, p, UAC_OUTPUT_TERMINAL)) != NULL) { | |
1927 | if (mixer->protocol == UAC_VERSION_1) { | |
69da9bcb | 1928 | struct uac1_output_terminal_descriptor *desc = p; |
23caaf19 DM |
1929 | |
1930 | if (desc->bLength < sizeof(*desc)) | |
1931 | continue; /* invalid descriptor? */ | |
1932 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
1933 | state.oterm.id = desc->bTerminalID; | |
1934 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1935 | state.oterm.name = desc->iTerminal; | |
1936 | err = parse_audio_unit(&state, desc->bSourceID); | |
1937 | if (err < 0) | |
1938 | return err; | |
1939 | } else { /* UAC_VERSION_2 */ | |
1940 | struct uac2_output_terminal_descriptor *desc = p; | |
1941 | ||
1942 | if (desc->bLength < sizeof(*desc)) | |
1943 | continue; /* invalid descriptor? */ | |
1944 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
1945 | state.oterm.id = desc->bTerminalID; | |
1946 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1947 | state.oterm.name = desc->iTerminal; | |
1948 | err = parse_audio_unit(&state, desc->bSourceID); | |
1949 | if (err < 0) | |
1950 | return err; | |
09414207 DM |
1951 | |
1952 | /* for UAC2, use the same approach to also add the clock selectors */ | |
1953 | err = parse_audio_unit(&state, desc->bCSourceID); | |
1954 | if (err < 0) | |
1955 | return err; | |
23caaf19 | 1956 | } |
1da177e4 | 1957 | } |
23caaf19 | 1958 | |
1da177e4 LT |
1959 | return 0; |
1960 | } | |
84957a8a | 1961 | |
7b1eda22 | 1962 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 1963 | { |
86e07d34 | 1964 | struct usb_mixer_elem_info *info; |
6639b6c2 CL |
1965 | |
1966 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) | |
1967 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
1968 | info->elem_id); | |
1969 | } | |
1970 | ||
ebfdeea3 JK |
1971 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
1972 | int unitid, | |
1973 | struct usb_mixer_elem_info *cval) | |
1974 | { | |
1975 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", | |
1976 | "S8", "U8", "S16", "U16"}; | |
1977 | snd_iprintf(buffer, " Unit: %i\n", unitid); | |
1978 | if (cval->elem_id) | |
1979 | snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", | |
1980 | cval->elem_id->name, cval->elem_id->index); | |
1981 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " | |
1982 | "channels=%i, type=\"%s\"\n", cval->id, | |
1983 | cval->control, cval->cmask, cval->channels, | |
1984 | val_types[cval->val_type]); | |
1985 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
1986 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
1987 | } | |
1988 | ||
1989 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
1990 | struct snd_info_buffer *buffer) | |
1991 | { | |
1992 | struct snd_usb_audio *chip = entry->private_data; | |
1993 | struct usb_mixer_interface *mixer; | |
1994 | struct usb_mixer_elem_info *cval; | |
1995 | int unitid; | |
1996 | ||
1997 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
1998 | snd_iprintf(buffer, | |
7affdc17 | 1999 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
3d8d4dcf | 2000 | chip->usb_id, snd_usb_ctrl_intf(chip), |
7affdc17 | 2001 | mixer->ignore_ctl_error); |
ebfdeea3 JK |
2002 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
2003 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
2004 | for (cval = mixer->id_elems[unitid]; cval; | |
2005 | cval = cval->next_id_elem) | |
2006 | snd_usb_mixer_dump_cval(buffer, unitid, cval); | |
2007 | } | |
2008 | } | |
2009 | } | |
2010 | ||
e213e9cf DM |
2011 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
2012 | int attribute, int value, int index) | |
2013 | { | |
2014 | struct usb_mixer_elem_info *info; | |
2015 | __u8 unitid = (index >> 8) & 0xff; | |
2016 | __u8 control = (value >> 8) & 0xff; | |
2017 | __u8 channel = value & 0xff; | |
2018 | ||
2019 | if (channel >= MAX_CHANNELS) { | |
2020 | snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", | |
2021 | __func__, channel); | |
2022 | return; | |
2023 | } | |
2024 | ||
2025 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { | |
2026 | if (info->control != control) | |
2027 | continue; | |
2028 | ||
2029 | switch (attribute) { | |
2030 | case UAC2_CS_CUR: | |
2031 | /* invalidate cache, so the value is read from the device */ | |
2032 | if (channel) | |
2033 | info->cached &= ~(1 << channel); | |
2034 | else /* master channel */ | |
2035 | info->cached = 0; | |
2036 | ||
2037 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2038 | info->elem_id); | |
2039 | break; | |
2040 | ||
2041 | case UAC2_CS_RANGE: | |
2042 | /* TODO */ | |
2043 | break; | |
2044 | ||
2045 | case UAC2_CS_MEM: | |
2046 | /* TODO */ | |
2047 | break; | |
2048 | ||
2049 | default: | |
2050 | snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", | |
2051 | attribute); | |
2052 | break; | |
2053 | } /* switch */ | |
2054 | } | |
2055 | } | |
2056 | ||
2057 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2058 | { |
2059 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf DM |
2060 | int len = urb->actual_length; |
2061 | ||
2062 | if (urb->status != 0) | |
2063 | goto requeue; | |
6639b6c2 | 2064 | |
e213e9cf DM |
2065 | if (mixer->protocol == UAC_VERSION_1) { |
2066 | struct uac1_status_word *status; | |
6639b6c2 | 2067 | |
e213e9cf DM |
2068 | for (status = urb->transfer_buffer; |
2069 | len >= sizeof(*status); | |
2070 | len -= sizeof(*status), status++) { | |
6639b6c2 | 2071 | snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", |
e213e9cf DM |
2072 | status->bStatusType, |
2073 | status->bOriginator); | |
2074 | ||
6639b6c2 | 2075 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2076 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2077 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2078 | continue; |
e213e9cf DM |
2079 | |
2080 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2081 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2082 | else |
e213e9cf DM |
2083 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2084 | } | |
2085 | } else { /* UAC_VERSION_2 */ | |
2086 | struct uac2_interrupt_data_msg *msg; | |
2087 | ||
2088 | for (msg = urb->transfer_buffer; | |
2089 | len >= sizeof(*msg); | |
2090 | len -= sizeof(*msg), msg++) { | |
2091 | /* drop vendor specific and endpoint requests */ | |
2092 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2093 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2094 | continue; | |
2095 | ||
2096 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2097 | le16_to_cpu(msg->wValue), | |
2098 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2099 | } |
2100 | } | |
e213e9cf DM |
2101 | |
2102 | requeue: | |
6639b6c2 CL |
2103 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) { |
2104 | urb->dev = mixer->chip->dev; | |
2105 | usb_submit_urb(urb, GFP_ATOMIC); | |
2106 | } | |
2107 | } | |
2108 | ||
2109 | /* create the handler for the optional status interrupt endpoint */ | |
2110 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2111 | { | |
2112 | struct usb_host_interface *hostif; | |
2113 | struct usb_endpoint_descriptor *ep; | |
2114 | void *transfer_buffer; | |
2115 | int buffer_length; | |
2116 | unsigned int epnum; | |
2117 | ||
3d8d4dcf | 2118 | hostif = mixer->chip->ctrl_intf; |
6639b6c2 CL |
2119 | /* we need one interrupt input endpoint */ |
2120 | if (get_iface_desc(hostif)->bNumEndpoints < 1) | |
2121 | return 0; | |
2122 | ep = get_endpoint(hostif, 0); | |
913ae5a2 | 2123 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2124 | return 0; |
2125 | ||
42a6e66f | 2126 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2127 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2128 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2129 | if (!transfer_buffer) | |
2130 | return -ENOMEM; | |
2131 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2132 | if (!mixer->urb) { | |
2133 | kfree(transfer_buffer); | |
2134 | return -ENOMEM; | |
2135 | } | |
2136 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2137 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2138 | transfer_buffer, buffer_length, | |
e213e9cf | 2139 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2140 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2141 | return 0; | |
2142 | } | |
2143 | ||
7a9b8063 TI |
2144 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2145 | int ignore_error) | |
84957a8a | 2146 | { |
86e07d34 | 2147 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2148 | .dev_free = snd_usb_mixer_dev_free |
2149 | }; | |
2150 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2151 | struct snd_info_entry *entry; |
7b8a043f | 2152 | struct usb_host_interface *host_iface; |
23caaf19 | 2153 | int err; |
84957a8a CL |
2154 | |
2155 | strcpy(chip->card->mixername, "USB Mixer"); | |
2156 | ||
561b220a | 2157 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2158 | if (!mixer) |
2159 | return -ENOMEM; | |
2160 | mixer->chip = chip; | |
7a9b8063 | 2161 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2162 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2163 | GFP_KERNEL); | |
6639b6c2 CL |
2164 | if (!mixer->id_elems) { |
2165 | kfree(mixer); | |
2166 | return -ENOMEM; | |
2167 | } | |
84957a8a | 2168 | |
7b8a043f | 2169 | host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
a2acad82 CL |
2170 | switch (get_iface_desc(host_iface)->bInterfaceProtocol) { |
2171 | case UAC_VERSION_1: | |
2172 | default: | |
2173 | mixer->protocol = UAC_VERSION_1; | |
2174 | break; | |
2175 | case UAC_VERSION_2: | |
2176 | mixer->protocol = UAC_VERSION_2; | |
2177 | break; | |
2178 | } | |
7b8a043f | 2179 | |
6639b6c2 | 2180 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2181 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2182 | goto _error; | |
84957a8a | 2183 | |
7b1eda22 | 2184 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2185 | |
84957a8a | 2186 | err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); |
93446edc CL |
2187 | if (err < 0) |
2188 | goto _error; | |
ebfdeea3 JK |
2189 | |
2190 | if (list_empty(&chip->mixer_list) && | |
2191 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2192 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2193 | ||
84957a8a CL |
2194 | list_add(&mixer->list, &chip->mixer_list); |
2195 | return 0; | |
93446edc CL |
2196 | |
2197 | _error: | |
2198 | snd_usb_mixer_free(mixer); | |
2199 | return err; | |
84957a8a CL |
2200 | } |
2201 | ||
2202 | void snd_usb_mixer_disconnect(struct list_head *p) | |
2203 | { | |
6639b6c2 | 2204 | struct usb_mixer_interface *mixer; |
7b1eda22 | 2205 | |
6639b6c2 | 2206 | mixer = list_entry(p, struct usb_mixer_interface, list); |
68df9de1 MK |
2207 | usb_kill_urb(mixer->urb); |
2208 | usb_kill_urb(mixer->rc_urb); | |
84957a8a | 2209 | } |