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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 | ||
1da177e4 LT |
29 | #include <linux/bitops.h> |
30 | #include <linux/init.h> | |
31 | #include <linux/list.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/usb.h> | |
28e1b773 | 35 | #include <linux/usb/audio.h> |
23caaf19 | 36 | #include <linux/usb/audio-v2.h> |
28e1b773 | 37 | |
1da177e4 LT |
38 | #include <sound/core.h> |
39 | #include <sound/control.h> | |
b259b10c | 40 | #include <sound/hwdep.h> |
aafad562 | 41 | #include <sound/info.h> |
7bc5ba7e | 42 | #include <sound/tlv.h> |
1da177e4 LT |
43 | |
44 | #include "usbaudio.h" | |
f0b5e634 | 45 | #include "mixer.h" |
e5779998 | 46 | #include "helper.h" |
7b1eda22 | 47 | #include "mixer_quirks.h" |
4d1a70da | 48 | |
ebfdeea3 JK |
49 | #define MAX_ID_ELEMS 256 |
50 | ||
1da177e4 LT |
51 | struct usb_audio_term { |
52 | int id; | |
53 | int type; | |
54 | int channels; | |
55 | unsigned int chconfig; | |
56 | int name; | |
57 | }; | |
58 | ||
59 | struct usbmix_name_map; | |
60 | ||
86e07d34 TI |
61 | struct mixer_build { |
62 | struct snd_usb_audio *chip; | |
84957a8a | 63 | struct usb_mixer_interface *mixer; |
1da177e4 LT |
64 | unsigned char *buffer; |
65 | unsigned int buflen; | |
291186e0 | 66 | DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); |
86e07d34 | 67 | struct usb_audio_term oterm; |
1da177e4 | 68 | const struct usbmix_name_map *map; |
8e062ec7 | 69 | const struct usbmix_selector_map *selector_map; |
1da177e4 LT |
70 | }; |
71 | ||
1da177e4 LT |
72 | enum { |
73 | USB_MIXER_BOOLEAN, | |
74 | USB_MIXER_INV_BOOLEAN, | |
75 | USB_MIXER_S8, | |
76 | USB_MIXER_U8, | |
77 | USB_MIXER_S16, | |
78 | USB_MIXER_U16, | |
79 | }; | |
80 | ||
81 | enum { | |
82 | USB_PROC_UPDOWN = 1, | |
83 | USB_PROC_UPDOWN_SWITCH = 1, | |
84 | USB_PROC_UPDOWN_MODE_SEL = 2, | |
85 | ||
86 | USB_PROC_PROLOGIC = 2, | |
87 | USB_PROC_PROLOGIC_SWITCH = 1, | |
88 | USB_PROC_PROLOGIC_MODE_SEL = 2, | |
89 | ||
90 | USB_PROC_3DENH = 3, | |
91 | USB_PROC_3DENH_SWITCH = 1, | |
92 | USB_PROC_3DENH_SPACE = 2, | |
93 | ||
94 | USB_PROC_REVERB = 4, | |
95 | USB_PROC_REVERB_SWITCH = 1, | |
96 | USB_PROC_REVERB_LEVEL = 2, | |
97 | USB_PROC_REVERB_TIME = 3, | |
98 | USB_PROC_REVERB_DELAY = 4, | |
99 | ||
100 | USB_PROC_CHORUS = 5, | |
101 | USB_PROC_CHORUS_SWITCH = 1, | |
102 | USB_PROC_CHORUS_LEVEL = 2, | |
103 | USB_PROC_CHORUS_RATE = 3, | |
104 | USB_PROC_CHORUS_DEPTH = 4, | |
105 | ||
106 | USB_PROC_DCR = 6, | |
107 | USB_PROC_DCR_SWITCH = 1, | |
108 | USB_PROC_DCR_RATIO = 2, | |
109 | USB_PROC_DCR_MAX_AMP = 3, | |
110 | USB_PROC_DCR_THRESHOLD = 4, | |
111 | USB_PROC_DCR_ATTACK = 5, | |
112 | USB_PROC_DCR_RELEASE = 6, | |
113 | }; | |
114 | ||
7d2b451e SK |
115 | /*E-mu 0202(0404) eXtension Unit(XU) control*/ |
116 | enum { | |
117 | USB_XU_CLOCK_RATE = 0xe301, | |
118 | USB_XU_CLOCK_SOURCE = 0xe302, | |
119 | USB_XU_DIGITAL_IO_STATUS = 0xe303, | |
120 | USB_XU_DEVICE_OPTIONS = 0xe304, | |
121 | USB_XU_DIRECT_MONITORING = 0xe305, | |
122 | USB_XU_METERING = 0xe306 | |
123 | }; | |
124 | enum { | |
125 | USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ | |
126 | USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ | |
127 | USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ | |
128 | USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ | |
129 | }; | |
1da177e4 LT |
130 | |
131 | /* | |
132 | * manual mapping of mixer names | |
133 | * if the mixer topology is too complicated and the parsed names are | |
134 | * ambiguous, add the entries in usbmixer_maps.c. | |
135 | */ | |
f0b5e634 | 136 | #include "mixer_maps.c" |
1da177e4 | 137 | |
c3a3e040 JK |
138 | static const struct usbmix_name_map * |
139 | find_map(struct mixer_build *state, int unitid, int control) | |
1da177e4 | 140 | { |
c3a3e040 | 141 | const struct usbmix_name_map *p = state->map; |
1da177e4 | 142 | |
c3a3e040 JK |
143 | if (!p) |
144 | return NULL; | |
1da177e4 LT |
145 | |
146 | for (p = state->map; p->id; p++) { | |
c3a3e040 JK |
147 | if (p->id == unitid && |
148 | (!control || !p->control || control == p->control)) | |
149 | return p; | |
1da177e4 | 150 | } |
c3a3e040 | 151 | return NULL; |
1da177e4 LT |
152 | } |
153 | ||
c3a3e040 JK |
154 | /* get the mapped name if the unit matches */ |
155 | static int | |
156 | check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) | |
1da177e4 | 157 | { |
c3a3e040 JK |
158 | if (!p || !p->name) |
159 | return 0; | |
1da177e4 | 160 | |
c3a3e040 JK |
161 | buflen--; |
162 | return strlcpy(buf, p->name, buflen); | |
163 | } | |
164 | ||
165 | /* check whether the control should be ignored */ | |
166 | static inline int | |
167 | check_ignored_ctl(const struct usbmix_name_map *p) | |
168 | { | |
169 | if (!p || p->name || p->dB) | |
1da177e4 | 170 | return 0; |
c3a3e040 JK |
171 | return 1; |
172 | } | |
173 | ||
174 | /* dB mapping */ | |
175 | static inline void check_mapped_dB(const struct usbmix_name_map *p, | |
176 | struct usb_mixer_elem_info *cval) | |
177 | { | |
178 | if (p && p->dB) { | |
179 | cval->dBmin = p->dB->min; | |
180 | cval->dBmax = p->dB->max; | |
1da177e4 | 181 | } |
1da177e4 LT |
182 | } |
183 | ||
8e062ec7 | 184 | /* get the mapped selector source name */ |
86e07d34 | 185 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
186 | int index, char *buf, int buflen) |
187 | { | |
188 | const struct usbmix_selector_map *p; | |
189 | ||
190 | if (! state->selector_map) | |
191 | return 0; | |
192 | for (p = state->selector_map; p->id; p++) { | |
193 | if (p->id == unitid && index < p->count) | |
194 | return strlcpy(buf, p->names[index], buflen); | |
195 | } | |
196 | return 0; | |
197 | } | |
198 | ||
1da177e4 LT |
199 | /* |
200 | * find an audio control unit with the given unit id | |
23caaf19 | 201 | * this doesn't return any clock related units, so they need to be handled elsewhere |
1da177e4 | 202 | */ |
86e07d34 | 203 | static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) |
1da177e4 LT |
204 | { |
205 | unsigned char *p; | |
206 | ||
207 | p = NULL; | |
208 | while ((p = snd_usb_find_desc(state->buffer, state->buflen, p, | |
209 | USB_DT_CS_INTERFACE)) != NULL) { | |
23caaf19 | 210 | if (p[0] >= 4 && p[2] >= UAC_INPUT_TERMINAL && p[2] <= UAC2_EXTENSION_UNIT_V2 && p[3] == unit) |
1da177e4 LT |
211 | return p; |
212 | } | |
213 | return NULL; | |
214 | } | |
215 | ||
216 | ||
217 | /* | |
218 | * copy a string with the given id | |
219 | */ | |
86e07d34 | 220 | static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) |
1da177e4 LT |
221 | { |
222 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
223 | buf[len] = 0; | |
224 | return len; | |
225 | } | |
226 | ||
227 | /* | |
228 | * convert from the byte/word on usb descriptor to the zero-based integer | |
229 | */ | |
86e07d34 | 230 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
231 | { |
232 | switch (cval->val_type) { | |
233 | case USB_MIXER_BOOLEAN: | |
234 | return !!val; | |
235 | case USB_MIXER_INV_BOOLEAN: | |
236 | return !val; | |
237 | case USB_MIXER_U8: | |
238 | val &= 0xff; | |
239 | break; | |
240 | case USB_MIXER_S8: | |
241 | val &= 0xff; | |
242 | if (val >= 0x80) | |
243 | val -= 0x100; | |
244 | break; | |
245 | case USB_MIXER_U16: | |
246 | val &= 0xffff; | |
247 | break; | |
248 | case USB_MIXER_S16: | |
249 | val &= 0xffff; | |
250 | if (val >= 0x8000) | |
251 | val -= 0x10000; | |
252 | break; | |
253 | } | |
254 | return val; | |
255 | } | |
256 | ||
257 | /* | |
258 | * convert from the zero-based int to the byte/word for usb descriptor | |
259 | */ | |
86e07d34 | 260 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
261 | { |
262 | switch (cval->val_type) { | |
263 | case USB_MIXER_BOOLEAN: | |
264 | return !!val; | |
265 | case USB_MIXER_INV_BOOLEAN: | |
266 | return !val; | |
267 | case USB_MIXER_S8: | |
268 | case USB_MIXER_U8: | |
269 | return val & 0xff; | |
270 | case USB_MIXER_S16: | |
271 | case USB_MIXER_U16: | |
272 | return val & 0xffff; | |
273 | } | |
274 | return 0; /* not reached */ | |
275 | } | |
276 | ||
86e07d34 | 277 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
278 | { |
279 | if (! cval->res) | |
280 | cval->res = 1; | |
281 | if (val < cval->min) | |
282 | return 0; | |
14790f1c TI |
283 | else if (val >= cval->max) |
284 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
285 | else |
286 | return (val - cval->min) / cval->res; | |
287 | } | |
288 | ||
86e07d34 | 289 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
290 | { |
291 | if (val < 0) | |
292 | return cval->min; | |
293 | if (! cval->res) | |
294 | cval->res = 1; | |
295 | val *= cval->res; | |
296 | val += cval->min; | |
297 | if (val > cval->max) | |
298 | return cval->max; | |
299 | return val; | |
300 | } | |
301 | ||
302 | ||
303 | /* | |
304 | * retrieve a mixer value | |
305 | */ | |
306 | ||
23caaf19 | 307 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
1da177e4 LT |
308 | { |
309 | unsigned char buf[2]; | |
310 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
311 | int timeout = 10; | |
312 | ||
313 | while (timeout-- > 0) { | |
84957a8a CL |
314 | if (snd_usb_ctl_msg(cval->mixer->chip->dev, |
315 | usb_rcvctrlpipe(cval->mixer->chip->dev, 0), | |
1da177e4 LT |
316 | request, |
317 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
84957a8a | 318 | validx, cval->mixer->ctrlif | (cval->id << 8), |
a04395ea | 319 | buf, val_len, 100) >= val_len) { |
1da177e4 LT |
320 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
321 | return 0; | |
322 | } | |
323 | } | |
84957a8a CL |
324 | snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
325 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); | |
1da177e4 LT |
326 | return -EINVAL; |
327 | } | |
328 | ||
23caaf19 DM |
329 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
330 | { | |
331 | unsigned char buf[14]; /* enough space for one range of 4 bytes */ | |
332 | unsigned char *val; | |
333 | int ret; | |
334 | __u8 bRequest; | |
335 | ||
336 | bRequest = (request == UAC_GET_CUR) ? | |
337 | UAC2_CS_CUR : UAC2_CS_RANGE; | |
338 | ||
339 | ret = snd_usb_ctl_msg(cval->mixer->chip->dev, | |
340 | usb_rcvctrlpipe(cval->mixer->chip->dev, 0), | |
341 | bRequest, | |
342 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
343 | validx, cval->mixer->ctrlif | (cval->id << 8), | |
344 | buf, sizeof(buf), 1000); | |
345 | ||
346 | if (ret < 0) { | |
347 | snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
348 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); | |
349 | return ret; | |
350 | } | |
351 | ||
352 | switch (request) { | |
353 | case UAC_GET_CUR: | |
354 | val = buf; | |
355 | break; | |
356 | case UAC_GET_MIN: | |
357 | val = buf + sizeof(__u16); | |
358 | break; | |
359 | case UAC_GET_MAX: | |
360 | val = buf + sizeof(__u16) * 2; | |
361 | break; | |
362 | case UAC_GET_RES: | |
363 | val = buf + sizeof(__u16) * 3; | |
364 | break; | |
365 | default: | |
366 | return -EINVAL; | |
367 | } | |
368 | ||
369 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); | |
370 | ||
371 | return 0; | |
372 | } | |
373 | ||
374 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) | |
375 | { | |
376 | return (cval->mixer->protocol == UAC_VERSION_1) ? | |
377 | get_ctl_value_v1(cval, request, validx, value_ret) : | |
378 | get_ctl_value_v2(cval, request, validx, value_ret); | |
379 | } | |
380 | ||
86e07d34 | 381 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) |
1da177e4 | 382 | { |
de48c7bc | 383 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
384 | } |
385 | ||
386 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
387 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
388 | int channel, int *value) | |
1da177e4 | 389 | { |
de48c7bc | 390 | return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); |
1da177e4 LT |
391 | } |
392 | ||
641b4879 TI |
393 | static int get_cur_mix_value(struct usb_mixer_elem_info *cval, |
394 | int channel, int index, int *value) | |
395 | { | |
396 | int err; | |
397 | ||
398 | if (cval->cached & (1 << channel)) { | |
399 | *value = cval->cache_val[index]; | |
400 | return 0; | |
401 | } | |
402 | err = get_cur_mix_raw(cval, channel, value); | |
403 | if (err < 0) { | |
404 | if (!cval->mixer->ignore_ctl_error) | |
23caaf19 | 405 | snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", |
641b4879 TI |
406 | cval->control, channel, err); |
407 | return err; | |
408 | } | |
409 | cval->cached |= 1 << channel; | |
410 | cval->cache_val[index] = *value; | |
411 | return 0; | |
412 | } | |
413 | ||
414 | ||
1da177e4 LT |
415 | /* |
416 | * set a mixer value | |
417 | */ | |
418 | ||
7b1eda22 DM |
419 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
420 | int request, int validx, int value_set) | |
1da177e4 LT |
421 | { |
422 | unsigned char buf[2]; | |
23caaf19 DM |
423 | int val_len, timeout = 10; |
424 | ||
425 | if (cval->mixer->protocol == UAC_VERSION_1) { | |
426 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
427 | } else { /* UAC_VERSION_2 */ | |
428 | /* audio class v2 controls are always 2 bytes in size */ | |
429 | val_len = sizeof(__u16); | |
430 | ||
431 | /* FIXME */ | |
432 | if (request != UAC_SET_CUR) { | |
433 | snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); | |
434 | return -EINVAL; | |
435 | } | |
436 | ||
437 | request = UAC2_CS_CUR; | |
438 | } | |
1da177e4 LT |
439 | |
440 | value_set = convert_bytes_value(cval, value_set); | |
441 | buf[0] = value_set & 0xff; | |
442 | buf[1] = (value_set >> 8) & 0xff; | |
cf3f9130 | 443 | while (timeout-- > 0) |
84957a8a CL |
444 | if (snd_usb_ctl_msg(cval->mixer->chip->dev, |
445 | usb_sndctrlpipe(cval->mixer->chip->dev, 0), | |
1da177e4 LT |
446 | request, |
447 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | |
84957a8a | 448 | validx, cval->mixer->ctrlif | (cval->id << 8), |
1da177e4 LT |
449 | buf, val_len, 100) >= 0) |
450 | return 0; | |
84957a8a CL |
451 | snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
452 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type, buf[0], buf[1]); | |
1da177e4 LT |
453 | return -EINVAL; |
454 | } | |
455 | ||
86e07d34 | 456 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) |
1da177e4 | 457 | { |
7b1eda22 | 458 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
459 | } |
460 | ||
641b4879 TI |
461 | static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
462 | int index, int value) | |
1da177e4 | 463 | { |
641b4879 | 464 | int err; |
7b1eda22 | 465 | err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, |
641b4879 TI |
466 | value); |
467 | if (err < 0) | |
468 | return err; | |
469 | cval->cached |= 1 << channel; | |
470 | cval->cache_val[index] = value; | |
471 | return 0; | |
1da177e4 LT |
472 | } |
473 | ||
7bc5ba7e TI |
474 | /* |
475 | * TLV callback for mixer volume controls | |
476 | */ | |
477 | static int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, | |
478 | unsigned int size, unsigned int __user *_tlv) | |
479 | { | |
480 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 481 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
482 | |
483 | if (size < sizeof(scale)) | |
484 | return -ENOMEM; | |
c3a3e040 JK |
485 | scale[2] = cval->dBmin; |
486 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
487 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
488 | return -EFAULT; | |
489 | return 0; | |
490 | } | |
1da177e4 LT |
491 | |
492 | /* | |
493 | * parser routines begin here... | |
494 | */ | |
495 | ||
86e07d34 | 496 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
497 | |
498 | ||
499 | /* | |
500 | * check if the input/output channel routing is enabled on the given bitmap. | |
501 | * used for mixer unit parser | |
502 | */ | |
503 | static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) | |
504 | { | |
505 | int idx = ich * num_outs + och; | |
506 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
507 | } | |
508 | ||
509 | ||
510 | /* | |
511 | * add an alsa control element | |
512 | * search and increment the index until an empty slot is found. | |
513 | * | |
514 | * if failed, give up and free the control instance. | |
515 | */ | |
516 | ||
86e07d34 | 517 | static int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl) |
1da177e4 | 518 | { |
86e07d34 | 519 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 520 | int err; |
84957a8a CL |
521 | |
522 | while (snd_ctl_find_id(state->chip->card, &kctl->id)) | |
1da177e4 | 523 | kctl->id.index++; |
84957a8a | 524 | if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) { |
1da177e4 | 525 | snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); |
6639b6c2 | 526 | return err; |
1da177e4 | 527 | } |
6639b6c2 CL |
528 | cval->elem_id = &kctl->id; |
529 | cval->next_id_elem = state->mixer->id_elems[cval->id]; | |
530 | state->mixer->id_elems[cval->id] = cval; | |
531 | return 0; | |
1da177e4 LT |
532 | } |
533 | ||
534 | ||
535 | /* | |
536 | * get a terminal name string | |
537 | */ | |
538 | ||
539 | static struct iterm_name_combo { | |
540 | int type; | |
541 | char *name; | |
542 | } iterm_names[] = { | |
543 | { 0x0300, "Output" }, | |
544 | { 0x0301, "Speaker" }, | |
545 | { 0x0302, "Headphone" }, | |
546 | { 0x0303, "HMD Audio" }, | |
547 | { 0x0304, "Desktop Speaker" }, | |
548 | { 0x0305, "Room Speaker" }, | |
549 | { 0x0306, "Com Speaker" }, | |
550 | { 0x0307, "LFE" }, | |
551 | { 0x0600, "External In" }, | |
552 | { 0x0601, "Analog In" }, | |
553 | { 0x0602, "Digital In" }, | |
554 | { 0x0603, "Line" }, | |
555 | { 0x0604, "Legacy In" }, | |
556 | { 0x0605, "IEC958 In" }, | |
557 | { 0x0606, "1394 DA Stream" }, | |
558 | { 0x0607, "1394 DV Stream" }, | |
559 | { 0x0700, "Embedded" }, | |
560 | { 0x0701, "Noise Source" }, | |
561 | { 0x0702, "Equalization Noise" }, | |
562 | { 0x0703, "CD" }, | |
563 | { 0x0704, "DAT" }, | |
564 | { 0x0705, "DCC" }, | |
565 | { 0x0706, "MiniDisk" }, | |
566 | { 0x0707, "Analog Tape" }, | |
567 | { 0x0708, "Phonograph" }, | |
568 | { 0x0709, "VCR Audio" }, | |
569 | { 0x070a, "Video Disk Audio" }, | |
570 | { 0x070b, "DVD Audio" }, | |
571 | { 0x070c, "TV Tuner Audio" }, | |
572 | { 0x070d, "Satellite Rec Audio" }, | |
573 | { 0x070e, "Cable Tuner Audio" }, | |
574 | { 0x070f, "DSS Audio" }, | |
575 | { 0x0710, "Radio Receiver" }, | |
576 | { 0x0711, "Radio Transmitter" }, | |
577 | { 0x0712, "Multi-Track Recorder" }, | |
578 | { 0x0713, "Synthesizer" }, | |
579 | { 0 }, | |
580 | }; | |
581 | ||
86e07d34 | 582 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
583 | unsigned char *name, int maxlen, int term_only) |
584 | { | |
585 | struct iterm_name_combo *names; | |
586 | ||
587 | if (iterm->name) | |
588 | return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); | |
589 | ||
590 | /* virtual type - not a real terminal */ | |
591 | if (iterm->type >> 16) { | |
592 | if (term_only) | |
593 | return 0; | |
594 | switch (iterm->type >> 16) { | |
de48c7bc | 595 | case UAC_SELECTOR_UNIT: |
1da177e4 | 596 | strcpy(name, "Selector"); return 8; |
de48c7bc | 597 | case UAC_PROCESSING_UNIT_V1: |
1da177e4 | 598 | strcpy(name, "Process Unit"); return 12; |
de48c7bc | 599 | case UAC_EXTENSION_UNIT_V1: |
1da177e4 | 600 | strcpy(name, "Ext Unit"); return 8; |
de48c7bc | 601 | case UAC_MIXER_UNIT: |
1da177e4 LT |
602 | strcpy(name, "Mixer"); return 5; |
603 | default: | |
604 | return sprintf(name, "Unit %d", iterm->id); | |
605 | } | |
606 | } | |
607 | ||
608 | switch (iterm->type & 0xff00) { | |
609 | case 0x0100: | |
610 | strcpy(name, "PCM"); return 3; | |
611 | case 0x0200: | |
612 | strcpy(name, "Mic"); return 3; | |
613 | case 0x0400: | |
614 | strcpy(name, "Headset"); return 7; | |
615 | case 0x0500: | |
616 | strcpy(name, "Phone"); return 5; | |
617 | } | |
618 | ||
619 | for (names = iterm_names; names->type; names++) | |
620 | if (names->type == iterm->type) { | |
621 | strcpy(name, names->name); | |
622 | return strlen(names->name); | |
623 | } | |
624 | return 0; | |
625 | } | |
626 | ||
627 | ||
628 | /* | |
629 | * parse the source unit recursively until it reaches to a terminal | |
630 | * or a branched unit. | |
631 | */ | |
86e07d34 | 632 | static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) |
1da177e4 | 633 | { |
23caaf19 | 634 | void *p1; |
1da177e4 LT |
635 | |
636 | memset(term, 0, sizeof(*term)); | |
637 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 638 | unsigned char *hdr = p1; |
1da177e4 | 639 | term->id = id; |
23caaf19 | 640 | switch (hdr[2]) { |
de48c7bc | 641 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
642 | if (state->mixer->protocol == UAC_VERSION_1) { |
643 | struct uac_input_terminal_descriptor *d = p1; | |
644 | term->type = le16_to_cpu(d->wTerminalType); | |
645 | term->channels = d->bNrChannels; | |
646 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
647 | term->name = d->iTerminal; | |
648 | } else { /* UAC_VERSION_2 */ | |
649 | struct uac2_input_terminal_descriptor *d = p1; | |
650 | term->type = le16_to_cpu(d->wTerminalType); | |
651 | term->channels = d->bNrChannels; | |
652 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
653 | term->name = d->iTerminal; | |
654 | } | |
1da177e4 | 655 | return 0; |
23caaf19 DM |
656 | case UAC_FEATURE_UNIT: { |
657 | /* the header is the same for v1 and v2 */ | |
658 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 659 | id = d->bSourceID; |
1da177e4 | 660 | break; /* continue to parse */ |
23caaf19 DM |
661 | } |
662 | case UAC_MIXER_UNIT: { | |
663 | struct uac_mixer_unit_descriptor *d = p1; | |
664 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
665 | term->channels = uac_mixer_unit_bNrChannels(d); | |
666 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
667 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 668 | return 0; |
23caaf19 DM |
669 | } |
670 | case UAC_SELECTOR_UNIT: { | |
671 | struct uac_selector_unit_descriptor *d = p1; | |
1da177e4 | 672 | /* call recursively to retrieve the channel info */ |
23caaf19 | 673 | if (check_input_term(state, d->baSourceID[0], term) < 0) |
1da177e4 | 674 | return -ENODEV; |
23caaf19 | 675 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 676 | term->id = id; |
23caaf19 | 677 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 678 | return 0; |
23caaf19 | 679 | } |
de48c7bc | 680 | case UAC_PROCESSING_UNIT_V1: |
23caaf19 DM |
681 | case UAC_EXTENSION_UNIT_V1: { |
682 | struct uac_processing_unit_descriptor *d = p1; | |
683 | if (d->bNrInPins) { | |
684 | id = d->baSourceID[0]; | |
1da177e4 LT |
685 | break; /* continue to parse */ |
686 | } | |
23caaf19 DM |
687 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
688 | term->channels = uac_processing_unit_bNrChannels(d); | |
689 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
690 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 691 | return 0; |
23caaf19 | 692 | } |
1da177e4 LT |
693 | default: |
694 | return -ENODEV; | |
695 | } | |
696 | } | |
697 | return -ENODEV; | |
698 | } | |
699 | ||
700 | ||
701 | /* | |
702 | * Feature Unit | |
703 | */ | |
704 | ||
705 | /* feature unit control information */ | |
706 | struct usb_feature_control_info { | |
707 | const char *name; | |
708 | unsigned int type; /* control type (mute, volume, etc.) */ | |
709 | }; | |
710 | ||
711 | static struct usb_feature_control_info audio_feature_info[] = { | |
712 | { "Mute", USB_MIXER_INV_BOOLEAN }, | |
713 | { "Volume", USB_MIXER_S16 }, | |
714 | { "Tone Control - Bass", USB_MIXER_S8 }, | |
715 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
716 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
717 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
718 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, | |
719 | { "Delay Control", USB_MIXER_U16 }, | |
720 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
721 | { "Loudness", USB_MIXER_BOOLEAN }, | |
722 | }; | |
723 | ||
724 | ||
725 | /* private_free callback */ | |
86e07d34 | 726 | static void usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 727 | { |
4d572776 JJ |
728 | kfree(kctl->private_data); |
729 | kctl->private_data = NULL; | |
1da177e4 LT |
730 | } |
731 | ||
732 | ||
733 | /* | |
734 | * interface to ALSA control for feature/mixer units | |
735 | */ | |
736 | ||
737 | /* | |
738 | * retrieve the minimum and maximum values for the specified control | |
739 | */ | |
86e07d34 | 740 | static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) |
1da177e4 LT |
741 | { |
742 | /* for failsafe */ | |
743 | cval->min = default_min; | |
744 | cval->max = cval->min + 1; | |
745 | cval->res = 1; | |
c3a3e040 | 746 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
747 | |
748 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
749 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
750 | cval->initialized = 1; | |
751 | } else { | |
752 | int minchn = 0; | |
753 | if (cval->cmask) { | |
754 | int i; | |
755 | for (i = 0; i < MAX_CHANNELS; i++) | |
756 | if (cval->cmask & (1 << i)) { | |
757 | minchn = i + 1; | |
758 | break; | |
759 | } | |
760 | } | |
de48c7bc DM |
761 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
762 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
84957a8a CL |
763 | snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", |
764 | cval->id, cval->mixer->ctrlif, cval->control, cval->id); | |
1da177e4 LT |
765 | return -EINVAL; |
766 | } | |
de48c7bc | 767 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { |
1da177e4 LT |
768 | cval->res = 1; |
769 | } else { | |
770 | int last_valid_res = cval->res; | |
771 | ||
772 | while (cval->res > 1) { | |
7b1eda22 DM |
773 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
774 | (cval->control << 8) | minchn, cval->res / 2) < 0) | |
1da177e4 LT |
775 | break; |
776 | cval->res /= 2; | |
777 | } | |
de48c7bc | 778 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) |
1da177e4 LT |
779 | cval->res = last_valid_res; |
780 | } | |
781 | if (cval->res == 0) | |
782 | cval->res = 1; | |
14790f1c TI |
783 | |
784 | /* Additional checks for the proper resolution | |
785 | * | |
786 | * Some devices report smaller resolutions than actually | |
787 | * reacting. They don't return errors but simply clip | |
788 | * to the lower aligned value. | |
789 | */ | |
790 | if (cval->min + cval->res < cval->max) { | |
791 | int last_valid_res = cval->res; | |
792 | int saved, test, check; | |
641b4879 | 793 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
794 | for (;;) { |
795 | test = saved; | |
796 | if (test < cval->max) | |
797 | test += cval->res; | |
798 | else | |
799 | test -= cval->res; | |
800 | if (test < cval->min || test > cval->max || | |
641b4879 TI |
801 | set_cur_mix_value(cval, minchn, 0, test) || |
802 | get_cur_mix_raw(cval, minchn, &check)) { | |
14790f1c TI |
803 | cval->res = last_valid_res; |
804 | break; | |
805 | } | |
806 | if (test == check) | |
807 | break; | |
808 | cval->res *= 2; | |
809 | } | |
641b4879 | 810 | set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
811 | } |
812 | ||
1da177e4 LT |
813 | cval->initialized = 1; |
814 | } | |
c3a3e040 JK |
815 | |
816 | /* USB descriptions contain the dB scale in 1/256 dB unit | |
817 | * while ALSA TLV contains in 1/100 dB unit | |
818 | */ | |
819 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
820 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
821 | if (cval->dBmin > cval->dBmax) { | |
822 | /* something is wrong; assume it's either from/to 0dB */ | |
823 | if (cval->dBmin < 0) | |
824 | cval->dBmax = 0; | |
825 | else if (cval->dBmin > 0) | |
826 | cval->dBmin = 0; | |
827 | if (cval->dBmin > cval->dBmax) { | |
828 | /* totally crap, return an error */ | |
829 | return -EINVAL; | |
830 | } | |
831 | } | |
832 | ||
1da177e4 LT |
833 | return 0; |
834 | } | |
835 | ||
836 | ||
837 | /* get a feature/mixer unit info */ | |
86e07d34 | 838 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 839 | { |
86e07d34 | 840 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
841 | |
842 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
843 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
844 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
845 | else | |
846 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
847 | uinfo->count = cval->channels; | |
848 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
849 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
850 | uinfo->value.integer.min = 0; | |
851 | uinfo->value.integer.max = 1; | |
852 | } else { | |
853 | if (! cval->initialized) | |
854 | get_min_max(cval, 0); | |
855 | uinfo->value.integer.min = 0; | |
14790f1c TI |
856 | uinfo->value.integer.max = |
857 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
858 | } |
859 | return 0; | |
860 | } | |
861 | ||
862 | /* get the current value from feature/mixer unit */ | |
86e07d34 | 863 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 864 | { |
86e07d34 | 865 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
866 | int c, cnt, val, err; |
867 | ||
641b4879 | 868 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
869 | if (cval->cmask) { |
870 | cnt = 0; | |
871 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
872 | if (!(cval->cmask & (1 << c))) |
873 | continue; | |
874 | err = get_cur_mix_value(cval, c + 1, cnt, &val); | |
875 | if (err < 0) | |
876 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
877 | val = get_relative_value(cval, val); | |
878 | ucontrol->value.integer.value[cnt] = val; | |
879 | cnt++; | |
1da177e4 | 880 | } |
641b4879 | 881 | return 0; |
1da177e4 LT |
882 | } else { |
883 | /* master channel */ | |
641b4879 TI |
884 | err = get_cur_mix_value(cval, 0, 0, &val); |
885 | if (err < 0) | |
886 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1da177e4 LT |
887 | val = get_relative_value(cval, val); |
888 | ucontrol->value.integer.value[0] = val; | |
889 | } | |
890 | return 0; | |
891 | } | |
892 | ||
893 | /* put the current value to feature/mixer unit */ | |
86e07d34 | 894 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 895 | { |
86e07d34 | 896 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
897 | int c, cnt, val, oval, err; |
898 | int changed = 0; | |
899 | ||
900 | if (cval->cmask) { | |
901 | cnt = 0; | |
902 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
903 | if (!(cval->cmask & (1 << c))) |
904 | continue; | |
905 | err = get_cur_mix_value(cval, c + 1, cnt, &oval); | |
906 | if (err < 0) | |
907 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
908 | val = ucontrol->value.integer.value[cnt]; | |
909 | val = get_abs_value(cval, val); | |
910 | if (oval != val) { | |
911 | set_cur_mix_value(cval, c + 1, cnt, val); | |
912 | changed = 1; | |
1da177e4 | 913 | } |
641b4879 | 914 | cnt++; |
1da177e4 LT |
915 | } |
916 | } else { | |
917 | /* master channel */ | |
641b4879 | 918 | err = get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 919 | if (err < 0) |
641b4879 | 920 | return cval->mixer->ignore_ctl_error ? 0 : err; |
1da177e4 LT |
921 | val = ucontrol->value.integer.value[0]; |
922 | val = get_abs_value(cval, val); | |
923 | if (val != oval) { | |
641b4879 | 924 | set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
925 | changed = 1; |
926 | } | |
927 | } | |
928 | return changed; | |
929 | } | |
930 | ||
86e07d34 | 931 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
932 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
933 | .name = "", /* will be filled later manually */ | |
934 | .info = mixer_ctl_feature_info, | |
935 | .get = mixer_ctl_feature_get, | |
936 | .put = mixer_ctl_feature_put, | |
937 | }; | |
938 | ||
23caaf19 DM |
939 | /* the read-only variant */ |
940 | static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { | |
941 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
942 | .name = "", /* will be filled later manually */ | |
943 | .info = mixer_ctl_feature_info, | |
944 | .get = mixer_ctl_feature_get, | |
945 | .put = NULL, | |
946 | }; | |
947 | ||
1da177e4 LT |
948 | |
949 | /* | |
950 | * build a feature control | |
951 | */ | |
952 | ||
08d1e635 TI |
953 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
954 | { | |
955 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
956 | } | |
957 | ||
99fc8645 | 958 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 959 | unsigned int ctl_mask, int control, |
23caaf19 DM |
960 | struct usb_audio_term *iterm, int unitid, |
961 | int read_only) | |
1da177e4 | 962 | { |
99fc8645 | 963 | struct uac_feature_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
964 | unsigned int len = 0; |
965 | int mapped_name = 0; | |
99fc8645 | 966 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
967 | struct snd_kcontrol *kctl; |
968 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 969 | const struct usbmix_name_map *map; |
1da177e4 LT |
970 | |
971 | control++; /* change from zero-based to 1-based value */ | |
972 | ||
45d76056 | 973 | if (control == UAC_GRAPHIC_EQUALIZER_CONTROL) { |
1da177e4 LT |
974 | /* FIXME: not supported yet */ |
975 | return; | |
976 | } | |
977 | ||
c3a3e040 JK |
978 | map = find_map(state, unitid, control); |
979 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
980 | return; |
981 | ||
561b220a | 982 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
983 | if (! cval) { |
984 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
985 | return; | |
986 | } | |
84957a8a | 987 | cval->mixer = state->mixer; |
1da177e4 LT |
988 | cval->id = unitid; |
989 | cval->control = control; | |
990 | cval->cmask = ctl_mask; | |
991 | cval->val_type = audio_feature_info[control-1].type; | |
992 | if (ctl_mask == 0) | |
993 | cval->channels = 1; /* master channel */ | |
994 | else { | |
995 | int i, c = 0; | |
996 | for (i = 0; i < 16; i++) | |
997 | if (ctl_mask & (1 << i)) | |
998 | c++; | |
999 | cval->channels = c; | |
1000 | } | |
1001 | ||
1002 | /* get min/max values */ | |
1003 | get_min_max(cval, 0); | |
1004 | ||
23caaf19 DM |
1005 | if (read_only) |
1006 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); | |
1007 | else | |
1008 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1009 | ||
1da177e4 LT |
1010 | if (! kctl) { |
1011 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1012 | kfree(cval); | |
1013 | return; | |
1014 | } | |
1015 | kctl->private_free = usb_mixer_elem_free; | |
1016 | ||
c3a3e040 | 1017 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1018 | mapped_name = len != 0; |
1019 | if (! len && nameid) | |
c3a3e040 JK |
1020 | len = snd_usb_copy_string_desc(state, nameid, |
1021 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
1022 | |
1023 | switch (control) { | |
45d76056 DM |
1024 | case UAC_MUTE_CONTROL: |
1025 | case UAC_VOLUME_CONTROL: | |
1da177e4 LT |
1026 | /* determine the control name. the rule is: |
1027 | * - if a name id is given in descriptor, use it. | |
1028 | * - if the connected input can be determined, then use the name | |
1029 | * of terminal type. | |
1030 | * - if the connected output can be determined, use it. | |
1031 | * - otherwise, anonymous name. | |
1032 | */ | |
1033 | if (! len) { | |
1034 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1035 | if (! len) | |
1036 | len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1037 | if (! len) | |
1038 | len = snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1039 | "Feature %d", unitid); | |
1040 | } | |
1041 | /* determine the stream direction: | |
1042 | * if the connected output is USB stream, then it's likely a | |
1043 | * capture stream. otherwise it should be playback (hopefully :) | |
1044 | */ | |
1045 | if (! mapped_name && ! (state->oterm.type >> 16)) { | |
1046 | if ((state->oterm.type & 0xff00) == 0x0100) { | |
08d1e635 | 1047 | len = append_ctl_name(kctl, " Capture"); |
1da177e4 | 1048 | } else { |
08d1e635 | 1049 | len = append_ctl_name(kctl, " Playback"); |
1da177e4 LT |
1050 | } |
1051 | } | |
45d76056 | 1052 | append_ctl_name(kctl, control == UAC_MUTE_CONTROL ? |
08d1e635 | 1053 | " Switch" : " Volume"); |
45d76056 | 1054 | if (control == UAC_VOLUME_CONTROL) { |
7bc5ba7e TI |
1055 | kctl->tlv.c = mixer_vol_tlv; |
1056 | kctl->vd[0].access |= | |
1057 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1058 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
c3a3e040 | 1059 | check_mapped_dB(map, cval); |
7bc5ba7e | 1060 | } |
1da177e4 LT |
1061 | break; |
1062 | ||
1063 | default: | |
1064 | if (! len) | |
1065 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, | |
1066 | sizeof(kctl->id.name)); | |
1067 | break; | |
1068 | } | |
1069 | ||
2cf313ee | 1070 | /* volume control quirks */ |
27d10f56 CL |
1071 | switch (state->chip->usb_id) { |
1072 | case USB_ID(0x0471, 0x0101): | |
1073 | case USB_ID(0x0471, 0x0104): | |
1074 | case USB_ID(0x0471, 0x0105): | |
1075 | case USB_ID(0x0672, 0x1041): | |
2cf313ee AF |
1076 | /* quirk for UDA1321/N101. |
1077 | * note that detection between firmware 2.1.1.7 (N101) | |
1078 | * and later 2.1.1.21 is not very clear from datasheets. | |
1079 | * I hope that the min value is -15360 for newer firmware --jk | |
1080 | */ | |
27d10f56 CL |
1081 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && |
1082 | cval->min == -15616) { | |
2cf313ee AF |
1083 | snd_printk(KERN_INFO |
1084 | "set volume quirk for UDA1321/N101 chip\n"); | |
27d10f56 CL |
1085 | cval->max = -256; |
1086 | } | |
2cf313ee AF |
1087 | break; |
1088 | ||
1089 | case USB_ID(0x046d, 0x09a4): | |
1090 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
1091 | snd_printk(KERN_INFO | |
1092 | "set volume quirk for QuickCam E3500\n"); | |
1093 | cval->min = 6080; | |
1094 | cval->max = 8768; | |
1095 | cval->res = 192; | |
1096 | } | |
1097 | break; | |
1098 | ||
1da177e4 LT |
1099 | } |
1100 | ||
1101 | snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", | |
1102 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); | |
84957a8a | 1103 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1104 | } |
1105 | ||
1106 | ||
1107 | ||
1108 | /* | |
1109 | * parse a feature unit | |
1110 | * | |
1111 | * most of controlls are defined here. | |
1112 | */ | |
28e1b773 | 1113 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) |
1da177e4 LT |
1114 | { |
1115 | int channels, i, j; | |
86e07d34 | 1116 | struct usb_audio_term iterm; |
1da177e4 LT |
1117 | unsigned int master_bits, first_ch_bits; |
1118 | int err, csize; | |
23caaf19 DM |
1119 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1120 | __u8 *bmaControls; | |
1121 | ||
1122 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1123 | csize = hdr->bControlSize; | |
1124 | channels = (hdr->bLength - 7) / csize - 1; | |
1125 | bmaControls = hdr->bmaControls; | |
1126 | } else { | |
1127 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
1128 | csize = 4; | |
1129 | channels = (hdr->bLength - 6) / 4; | |
1130 | bmaControls = ftr->bmaControls; | |
1131 | } | |
1da177e4 | 1132 | |
23caaf19 | 1133 | if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { |
de48c7bc | 1134 | snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); |
1da177e4 LT |
1135 | return -EINVAL; |
1136 | } | |
1137 | ||
1138 | /* parse the source unit */ | |
23caaf19 | 1139 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1140 | return err; |
1141 | ||
1142 | /* determine the input source type and name */ | |
23caaf19 | 1143 | if (check_input_term(state, hdr->bSourceID, &iterm) < 0) |
1da177e4 LT |
1144 | return -EINVAL; |
1145 | ||
23caaf19 | 1146 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1147 | /* master configuration quirks */ |
1148 | switch (state->chip->usb_id) { | |
1149 | case USB_ID(0x08bb, 0x2702): | |
1150 | snd_printk(KERN_INFO | |
1151 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
1152 | /* disable non-functional volume control */ | |
45d76056 | 1153 | master_bits &= ~UAC_FU_VOLUME; |
0c3cee57 JK |
1154 | break; |
1155 | } | |
1da177e4 | 1156 | if (channels > 0) |
23caaf19 | 1157 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1158 | else |
1159 | first_ch_bits = 0; | |
23caaf19 DM |
1160 | |
1161 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1162 | /* check all control types */ | |
1163 | for (i = 0; i < 10; i++) { | |
1164 | unsigned int ch_bits = 0; | |
1165 | for (j = 0; j < channels; j++) { | |
1166 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
1167 | if (mask & (1 << i)) | |
1168 | ch_bits |= (1 << j); | |
1169 | } | |
1170 | /* audio class v1 controls are never read-only */ | |
1171 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ | |
1172 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); | |
1173 | if (master_bits & (1 << i)) | |
1174 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); | |
1175 | } | |
1176 | } else { /* UAC_VERSION_2 */ | |
1177 | for (i = 0; i < 30/2; i++) { | |
1178 | /* From the USB Audio spec v2.0: | |
1179 | bmaControls() is a (ch+1)-element array of 4-byte bitmaps, | |
1180 | each containing a set of bit pairs. If a Control is present, | |
1181 | it must be Host readable. If a certain Control is not | |
1182 | present then the bit pair must be set to 0b00. | |
1183 | If a Control is present but read-only, the bit pair must be | |
1184 | set to 0b01. If a Control is also Host programmable, the bit | |
1185 | pair must be set to 0b11. The value 0b10 is not allowed. */ | |
1186 | unsigned int ch_bits = 0; | |
1187 | unsigned int ch_read_only = 0; | |
1188 | ||
1189 | for (j = 0; j < channels; j++) { | |
1190 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
1191 | if (mask & (1 << (i * 2))) { | |
1192 | ch_bits |= (1 << j); | |
1193 | if (~mask & (1 << ((i * 2) + 1))) | |
1194 | ch_read_only |= (1 << j); | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | /* FIXME: the whole unit is read-only if any of the channels is marked read-only */ | |
1199 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ | |
1200 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, !!ch_read_only); | |
1201 | if (master_bits & (1 << i * 2)) | |
1202 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, | |
1203 | ~master_bits & (1 << ((i * 2) + 1))); | |
1da177e4 | 1204 | } |
1da177e4 LT |
1205 | } |
1206 | ||
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | ||
1211 | /* | |
1212 | * Mixer Unit | |
1213 | */ | |
1214 | ||
1215 | /* | |
1216 | * build a mixer unit control | |
1217 | * | |
1218 | * the callbacks are identical with feature unit. | |
1219 | * input channel number (zero based) is given in control field instead. | |
1220 | */ | |
1221 | ||
99fc8645 DM |
1222 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1223 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1224 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1225 | struct usb_audio_term *iterm) |
1da177e4 | 1226 | { |
86e07d34 | 1227 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1228 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1229 | unsigned int i, len; |
86e07d34 | 1230 | struct snd_kcontrol *kctl; |
c3a3e040 | 1231 | const struct usbmix_name_map *map; |
1da177e4 | 1232 | |
c3a3e040 JK |
1233 | map = find_map(state, unitid, 0); |
1234 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1235 | return; |
1236 | ||
561b220a | 1237 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1238 | if (! cval) |
1239 | return; | |
1240 | ||
84957a8a | 1241 | cval->mixer = state->mixer; |
1da177e4 LT |
1242 | cval->id = unitid; |
1243 | cval->control = in_ch + 1; /* based on 1 */ | |
1244 | cval->val_type = USB_MIXER_S16; | |
1245 | for (i = 0; i < num_outs; i++) { | |
23caaf19 | 1246 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { |
1da177e4 LT |
1247 | cval->cmask |= (1 << i); |
1248 | cval->channels++; | |
1249 | } | |
1250 | } | |
1251 | ||
1252 | /* get min/max values */ | |
1253 | get_min_max(cval, 0); | |
1254 | ||
1255 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1256 | if (! kctl) { | |
1257 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1258 | kfree(cval); | |
1259 | return; | |
1260 | } | |
1261 | kctl->private_free = usb_mixer_elem_free; | |
1262 | ||
c3a3e040 | 1263 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1264 | if (! len) |
1265 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); | |
1266 | if (! len) | |
1267 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); | |
08d1e635 | 1268 | append_ctl_name(kctl, " Volume"); |
1da177e4 LT |
1269 | |
1270 | snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", | |
1271 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1272 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1273 | } |
1274 | ||
1275 | ||
1276 | /* | |
1277 | * parse a mixer unit | |
1278 | */ | |
99fc8645 | 1279 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1280 | { |
99fc8645 | 1281 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1282 | struct usb_audio_term iterm; |
1da177e4 LT |
1283 | int input_pins, num_ins, num_outs; |
1284 | int pin, ich, err; | |
1285 | ||
99fc8645 | 1286 | if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { |
1da177e4 LT |
1287 | snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); |
1288 | return -EINVAL; | |
1289 | } | |
1290 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
99fc8645 | 1291 | if (desc->bLength <= 10 + input_pins) { |
1da177e4 LT |
1292 | snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); |
1293 | return 0; | |
1294 | } | |
1295 | ||
1296 | num_ins = 0; | |
1297 | ich = 0; | |
1298 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1299 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 LT |
1300 | if (err < 0) |
1301 | return err; | |
99fc8645 | 1302 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1303 | if (err < 0) |
1304 | return err; | |
1305 | num_ins += iterm.channels; | |
1306 | for (; ich < num_ins; ++ich) { | |
1307 | int och, ich_has_controls = 0; | |
1308 | ||
1309 | for (och = 0; och < num_outs; ++och) { | |
23caaf19 | 1310 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), |
1da177e4 LT |
1311 | ich, och, num_outs)) { |
1312 | ich_has_controls = 1; | |
1313 | break; | |
1314 | } | |
1315 | } | |
1316 | if (ich_has_controls) | |
1317 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1318 | unitid, &iterm); | |
1319 | } | |
1320 | } | |
1321 | return 0; | |
1322 | } | |
1323 | ||
1324 | ||
1325 | /* | |
1326 | * Processing Unit / Extension Unit | |
1327 | */ | |
1328 | ||
1329 | /* get callback for processing/extension unit */ | |
86e07d34 | 1330 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1331 | { |
86e07d34 | 1332 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1333 | int err, val; |
1334 | ||
1335 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
84957a8a | 1336 | if (err < 0 && cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1337 | ucontrol->value.integer.value[0] = cval->min; |
1338 | return 0; | |
1339 | } | |
1340 | if (err < 0) | |
1341 | return err; | |
1342 | val = get_relative_value(cval, val); | |
1343 | ucontrol->value.integer.value[0] = val; | |
1344 | return 0; | |
1345 | } | |
1346 | ||
1347 | /* put callback for processing/extension unit */ | |
86e07d34 | 1348 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1349 | { |
86e07d34 | 1350 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1351 | int val, oval, err; |
1352 | ||
1353 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
1354 | if (err < 0) { | |
84957a8a | 1355 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1356 | return 0; |
1357 | return err; | |
1358 | } | |
1359 | val = ucontrol->value.integer.value[0]; | |
1360 | val = get_abs_value(cval, val); | |
1361 | if (val != oval) { | |
1362 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1363 | return 1; | |
1364 | } | |
1365 | return 0; | |
1366 | } | |
1367 | ||
1368 | /* alsa control interface for processing/extension unit */ | |
86e07d34 | 1369 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1370 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1371 | .name = "", /* will be filled later */ | |
1372 | .info = mixer_ctl_feature_info, | |
1373 | .get = mixer_ctl_procunit_get, | |
1374 | .put = mixer_ctl_procunit_put, | |
1375 | }; | |
1376 | ||
1377 | ||
1378 | /* | |
1379 | * predefined data for processing units | |
1380 | */ | |
1381 | struct procunit_value_info { | |
1382 | int control; | |
1383 | char *suffix; | |
1384 | int val_type; | |
1385 | int min_value; | |
1386 | }; | |
1387 | ||
1388 | struct procunit_info { | |
1389 | int type; | |
1390 | char *name; | |
1391 | struct procunit_value_info *values; | |
1392 | }; | |
1393 | ||
1394 | static struct procunit_value_info updown_proc_info[] = { | |
1395 | { USB_PROC_UPDOWN_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1396 | { USB_PROC_UPDOWN_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 }, | |
1397 | { 0 } | |
1398 | }; | |
1399 | static struct procunit_value_info prologic_proc_info[] = { | |
1400 | { USB_PROC_PROLOGIC_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1401 | { USB_PROC_PROLOGIC_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 }, | |
1402 | { 0 } | |
1403 | }; | |
1404 | static struct procunit_value_info threed_enh_proc_info[] = { | |
1405 | { USB_PROC_3DENH_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1406 | { USB_PROC_3DENH_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1407 | { 0 } | |
1408 | }; | |
1409 | static struct procunit_value_info reverb_proc_info[] = { | |
1410 | { USB_PROC_REVERB_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1411 | { USB_PROC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1412 | { USB_PROC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1413 | { USB_PROC_REVERB_DELAY, "Delay", USB_MIXER_U8 }, | |
1414 | { 0 } | |
1415 | }; | |
1416 | static struct procunit_value_info chorus_proc_info[] = { | |
1417 | { USB_PROC_CHORUS_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1418 | { USB_PROC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1419 | { USB_PROC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1420 | { USB_PROC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1421 | { 0 } | |
1422 | }; | |
1423 | static struct procunit_value_info dcr_proc_info[] = { | |
1424 | { USB_PROC_DCR_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1425 | { USB_PROC_DCR_RATIO, "Ratio", USB_MIXER_U16 }, | |
1426 | { USB_PROC_DCR_MAX_AMP, "Max Amp", USB_MIXER_S16 }, | |
1427 | { USB_PROC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1428 | { USB_PROC_DCR_ATTACK, "Attack Time", USB_MIXER_U16 }, | |
1429 | { USB_PROC_DCR_RELEASE, "Release Time", USB_MIXER_U16 }, | |
1430 | { 0 } | |
1431 | }; | |
1432 | ||
1433 | static struct procunit_info procunits[] = { | |
1434 | { USB_PROC_UPDOWN, "Up Down", updown_proc_info }, | |
1435 | { USB_PROC_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1436 | { USB_PROC_3DENH, "3D Stereo Extender", threed_enh_proc_info }, | |
1437 | { USB_PROC_REVERB, "Reverb", reverb_proc_info }, | |
1438 | { USB_PROC_CHORUS, "Chorus", chorus_proc_info }, | |
1439 | { USB_PROC_DCR, "DCR", dcr_proc_info }, | |
1440 | { 0 }, | |
1441 | }; | |
7d2b451e SK |
1442 | /* |
1443 | * predefined data for extension units | |
1444 | */ | |
1445 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1446 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1447 | { 0 } | |
7d2b451e SK |
1448 | }; |
1449 | static struct procunit_value_info clock_source_xu_info[] = { | |
1450 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1451 | { 0 } | |
1452 | }; | |
1453 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1454 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1455 | { 0 } | |
1456 | }; | |
1457 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1458 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1459 | { 0 } | |
1460 | }; | |
1461 | static struct procunit_info extunits[] = { | |
1462 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1463 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1464 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1465 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1466 | { 0 } | |
1467 | }; | |
1da177e4 LT |
1468 | /* |
1469 | * build a processing/extension unit | |
1470 | */ | |
99fc8645 | 1471 | static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) |
1da177e4 | 1472 | { |
99fc8645 DM |
1473 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1474 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1475 | struct usb_mixer_elem_info *cval; |
1476 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1477 | int i, err, nameid, type, len; |
1478 | struct procunit_info *info; | |
1479 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1480 | const struct usbmix_name_map *map; |
1da177e4 LT |
1481 | static struct procunit_value_info default_value_info[] = { |
1482 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1483 | { 0 } | |
1484 | }; | |
1485 | static struct procunit_info default_info = { | |
1486 | 0, NULL, default_value_info | |
1487 | }; | |
1488 | ||
23caaf19 DM |
1489 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1490 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
1da177e4 LT |
1491 | snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); |
1492 | return -EINVAL; | |
1493 | } | |
1494 | ||
1495 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1496 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1497 | return err; |
1498 | } | |
1499 | ||
99fc8645 | 1500 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1501 | for (info = list; info && info->type; info++) |
1502 | if (info->type == type) | |
1503 | break; | |
1504 | if (! info || ! info->type) | |
1505 | info = &default_info; | |
1506 | ||
1507 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1508 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 DM |
1509 | |
1510 | if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) | |
1da177e4 | 1511 | continue; |
c3a3e040 JK |
1512 | map = find_map(state, unitid, valinfo->control); |
1513 | if (check_ignored_ctl(map)) | |
1da177e4 | 1514 | continue; |
561b220a | 1515 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1516 | if (! cval) { |
1517 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1518 | return -ENOMEM; | |
1519 | } | |
84957a8a | 1520 | cval->mixer = state->mixer; |
1da177e4 LT |
1521 | cval->id = unitid; |
1522 | cval->control = valinfo->control; | |
1523 | cval->val_type = valinfo->val_type; | |
1524 | cval->channels = 1; | |
1525 | ||
1526 | /* get min/max values */ | |
1527 | if (type == USB_PROC_UPDOWN && cval->control == USB_PROC_UPDOWN_MODE_SEL) { | |
23caaf19 | 1528 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1529 | /* FIXME: hard-coded */ |
1530 | cval->min = 1; | |
99fc8645 | 1531 | cval->max = control_spec[0]; |
1da177e4 LT |
1532 | cval->res = 1; |
1533 | cval->initialized = 1; | |
7d2b451e SK |
1534 | } else { |
1535 | if (type == USB_XU_CLOCK_RATE) { | |
1536 | /* E-Mu USB 0404/0202/TrackerPre | |
1537 | * samplerate control quirk | |
1538 | */ | |
1539 | cval->min = 0; | |
1540 | cval->max = 5; | |
1541 | cval->res = 1; | |
1542 | cval->initialized = 1; | |
1543 | } else | |
1544 | get_min_max(cval, valinfo->min_value); | |
1545 | } | |
1da177e4 LT |
1546 | |
1547 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
1548 | if (! kctl) { | |
1549 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1550 | kfree(cval); | |
1551 | return -ENOMEM; | |
1552 | } | |
1553 | kctl->private_free = usb_mixer_elem_free; | |
1554 | ||
c3a3e040 JK |
1555 | if (check_mapped_name(map, kctl->id.name, |
1556 | sizeof(kctl->id.name))) | |
1557 | /* nothing */ ; | |
1da177e4 LT |
1558 | else if (info->name) |
1559 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); | |
1560 | else { | |
23caaf19 | 1561 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1562 | len = 0; |
1563 | if (nameid) | |
1564 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1565 | if (! len) | |
1566 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); | |
1567 | } | |
08d1e635 TI |
1568 | append_ctl_name(kctl, " "); |
1569 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 LT |
1570 | |
1571 | snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", | |
1572 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1573 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1574 | return err; |
1575 | } | |
1576 | return 0; | |
1577 | } | |
1578 | ||
1579 | ||
99fc8645 | 1580 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1581 | { |
99fc8645 | 1582 | return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); |
1da177e4 LT |
1583 | } |
1584 | ||
99fc8645 | 1585 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1586 | { |
99fc8645 DM |
1587 | /* Note that we parse extension units with processing unit descriptors. |
1588 | * That's ok as the layout is the same */ | |
1589 | return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); | |
1da177e4 LT |
1590 | } |
1591 | ||
1592 | ||
1593 | /* | |
1594 | * Selector Unit | |
1595 | */ | |
1596 | ||
1597 | /* info callback for selector unit | |
1598 | * use an enumerator type for routing | |
1599 | */ | |
86e07d34 | 1600 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 1601 | { |
86e07d34 | 1602 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1603 | char **itemlist = (char **)kcontrol->private_value; |
1604 | ||
5e246b85 TI |
1605 | if (snd_BUG_ON(!itemlist)) |
1606 | return -EINVAL; | |
1da177e4 LT |
1607 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
1608 | uinfo->count = 1; | |
1609 | uinfo->value.enumerated.items = cval->max; | |
1610 | if ((int)uinfo->value.enumerated.item >= cval->max) | |
1611 | uinfo->value.enumerated.item = cval->max - 1; | |
1612 | strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]); | |
1613 | return 0; | |
1614 | } | |
1615 | ||
1616 | /* get callback for selector unit */ | |
86e07d34 | 1617 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1618 | { |
86e07d34 | 1619 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1620 | int val, err; |
1621 | ||
1622 | err = get_cur_ctl_value(cval, 0, &val); | |
1623 | if (err < 0) { | |
84957a8a | 1624 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1625 | ucontrol->value.enumerated.item[0] = 0; |
1626 | return 0; | |
1627 | } | |
1628 | return err; | |
1629 | } | |
1630 | val = get_relative_value(cval, val); | |
1631 | ucontrol->value.enumerated.item[0] = val; | |
1632 | return 0; | |
1633 | } | |
1634 | ||
1635 | /* put callback for selector unit */ | |
86e07d34 | 1636 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1637 | { |
86e07d34 | 1638 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1639 | int val, oval, err; |
1640 | ||
1641 | err = get_cur_ctl_value(cval, 0, &oval); | |
1642 | if (err < 0) { | |
84957a8a | 1643 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1644 | return 0; |
1645 | return err; | |
1646 | } | |
1647 | val = ucontrol->value.enumerated.item[0]; | |
1648 | val = get_abs_value(cval, val); | |
1649 | if (val != oval) { | |
1650 | set_cur_ctl_value(cval, 0, val); | |
1651 | return 1; | |
1652 | } | |
1653 | return 0; | |
1654 | } | |
1655 | ||
1656 | /* alsa control interface for selector unit */ | |
86e07d34 | 1657 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
1658 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1659 | .name = "", /* will be filled later */ | |
1660 | .info = mixer_ctl_selector_info, | |
1661 | .get = mixer_ctl_selector_get, | |
1662 | .put = mixer_ctl_selector_put, | |
1663 | }; | |
1664 | ||
1665 | ||
1666 | /* private free callback. | |
1667 | * free both private_data and private_value | |
1668 | */ | |
86e07d34 | 1669 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
1670 | { |
1671 | int i, num_ins = 0; | |
1672 | ||
1673 | if (kctl->private_data) { | |
86e07d34 | 1674 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
1675 | num_ins = cval->max; |
1676 | kfree(cval); | |
1677 | kctl->private_data = NULL; | |
1678 | } | |
1679 | if (kctl->private_value) { | |
1680 | char **itemlist = (char **)kctl->private_value; | |
1681 | for (i = 0; i < num_ins; i++) | |
1682 | kfree(itemlist[i]); | |
1683 | kfree(itemlist); | |
1684 | kctl->private_value = 0; | |
1685 | } | |
1686 | } | |
1687 | ||
1688 | /* | |
1689 | * parse a selector unit | |
1690 | */ | |
99fc8645 | 1691 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1692 | { |
99fc8645 | 1693 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1694 | unsigned int i, nameid, len; |
1695 | int err; | |
86e07d34 TI |
1696 | struct usb_mixer_elem_info *cval; |
1697 | struct snd_kcontrol *kctl; | |
c3a3e040 | 1698 | const struct usbmix_name_map *map; |
1da177e4 LT |
1699 | char **namelist; |
1700 | ||
99fc8645 | 1701 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
1da177e4 LT |
1702 | snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); |
1703 | return -EINVAL; | |
1704 | } | |
1705 | ||
99fc8645 DM |
1706 | for (i = 0; i < desc->bNrInPins; i++) { |
1707 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
1708 | return err; |
1709 | } | |
1710 | ||
99fc8645 | 1711 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
1712 | return 0; |
1713 | ||
c3a3e040 JK |
1714 | map = find_map(state, unitid, 0); |
1715 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1716 | return 0; |
1717 | ||
561b220a | 1718 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1719 | if (! cval) { |
1720 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1721 | return -ENOMEM; | |
1722 | } | |
84957a8a | 1723 | cval->mixer = state->mixer; |
1da177e4 LT |
1724 | cval->id = unitid; |
1725 | cval->val_type = USB_MIXER_U8; | |
1726 | cval->channels = 1; | |
1727 | cval->min = 1; | |
99fc8645 | 1728 | cval->max = desc->bNrInPins; |
1da177e4 LT |
1729 | cval->res = 1; |
1730 | cval->initialized = 1; | |
1731 | ||
99fc8645 | 1732 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
1da177e4 LT |
1733 | if (! namelist) { |
1734 | snd_printk(KERN_ERR "cannot malloc\n"); | |
1735 | kfree(cval); | |
1736 | return -ENOMEM; | |
1737 | } | |
1738 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 1739 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 1740 | struct usb_audio_term iterm; |
1da177e4 LT |
1741 | len = 0; |
1742 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
1743 | if (! namelist[i]) { | |
1744 | snd_printk(KERN_ERR "cannot malloc\n"); | |
7fbe3ca5 | 1745 | while (i--) |
1da177e4 LT |
1746 | kfree(namelist[i]); |
1747 | kfree(namelist); | |
1748 | kfree(cval); | |
1749 | return -ENOMEM; | |
1750 | } | |
8e062ec7 CL |
1751 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
1752 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 1753 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
1754 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
1755 | if (! len) | |
1756 | sprintf(namelist[i], "Input %d", i); | |
1757 | } | |
1758 | ||
1759 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
1760 | if (! kctl) { | |
1761 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
878b4789 | 1762 | kfree(namelist); |
1da177e4 LT |
1763 | kfree(cval); |
1764 | return -ENOMEM; | |
1765 | } | |
1766 | kctl->private_value = (unsigned long)namelist; | |
1767 | kctl->private_free = usb_mixer_selector_elem_free; | |
1768 | ||
99fc8645 | 1769 | nameid = uac_selector_unit_iSelector(desc); |
c3a3e040 | 1770 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1771 | if (len) |
1772 | ; | |
1773 | else if (nameid) | |
1774 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1775 | else { | |
1776 | len = get_term_name(state, &state->oterm, | |
1777 | kctl->id.name, sizeof(kctl->id.name), 0); | |
1778 | if (! len) | |
1779 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); | |
1780 | ||
1781 | if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 1782 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 1783 | else |
08d1e635 | 1784 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
1785 | } |
1786 | ||
1787 | snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", | |
99fc8645 | 1788 | cval->id, kctl->id.name, desc->bNrInPins); |
84957a8a | 1789 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1790 | return err; |
1791 | ||
1792 | return 0; | |
1793 | } | |
1794 | ||
1795 | ||
1796 | /* | |
1797 | * parse an audio unit recursively | |
1798 | */ | |
1799 | ||
86e07d34 | 1800 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
1801 | { |
1802 | unsigned char *p1; | |
1803 | ||
1804 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
1805 | return 0; /* the unit already visited */ | |
1806 | ||
1807 | p1 = find_audio_control_unit(state, unitid); | |
1808 | if (!p1) { | |
1809 | snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); | |
1810 | return -EINVAL; | |
1811 | } | |
1812 | ||
1813 | switch (p1[2]) { | |
de48c7bc | 1814 | case UAC_INPUT_TERMINAL: |
1da177e4 | 1815 | return 0; /* NOP */ |
de48c7bc | 1816 | case UAC_MIXER_UNIT: |
1da177e4 | 1817 | return parse_audio_mixer_unit(state, unitid, p1); |
de48c7bc | 1818 | case UAC_SELECTOR_UNIT: |
1da177e4 | 1819 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 1820 | case UAC_FEATURE_UNIT: |
1da177e4 | 1821 | return parse_audio_feature_unit(state, unitid, p1); |
de48c7bc | 1822 | case UAC_PROCESSING_UNIT_V1: |
23caaf19 DM |
1823 | /* UAC2_EFFECT_UNIT has the same value */ |
1824 | if (state->mixer->protocol == UAC_VERSION_1) | |
1825 | return parse_audio_processing_unit(state, unitid, p1); | |
1826 | else | |
1827 | return 0; /* FIXME - effect units not implemented yet */ | |
de48c7bc | 1828 | case UAC_EXTENSION_UNIT_V1: |
23caaf19 DM |
1829 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
1830 | if (state->mixer->protocol == UAC_VERSION_1) | |
1831 | return parse_audio_extension_unit(state, unitid, p1); | |
1832 | else /* UAC_VERSION_2 */ | |
1833 | return parse_audio_processing_unit(state, unitid, p1); | |
1da177e4 LT |
1834 | default: |
1835 | snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1836 | return -EINVAL; | |
1837 | } | |
1838 | } | |
1839 | ||
84957a8a CL |
1840 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
1841 | { | |
6639b6c2 CL |
1842 | kfree(mixer->id_elems); |
1843 | if (mixer->urb) { | |
1844 | kfree(mixer->urb->transfer_buffer); | |
1845 | usb_free_urb(mixer->urb); | |
1846 | } | |
68df9de1 | 1847 | usb_free_urb(mixer->rc_urb); |
b259b10c | 1848 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
1849 | kfree(mixer); |
1850 | } | |
1851 | ||
86e07d34 | 1852 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
1853 | { |
1854 | struct usb_mixer_interface *mixer = device->device_data; | |
1855 | snd_usb_mixer_free(mixer); | |
1856 | return 0; | |
1857 | } | |
1858 | ||
1da177e4 LT |
1859 | /* |
1860 | * create mixer controls | |
1861 | * | |
de48c7bc | 1862 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 1863 | */ |
84957a8a | 1864 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 1865 | { |
86e07d34 | 1866 | struct mixer_build state; |
1da177e4 LT |
1867 | int err; |
1868 | const struct usbmix_ctl_map *map; | |
84957a8a | 1869 | struct usb_host_interface *hostif; |
23caaf19 | 1870 | void *p; |
1da177e4 | 1871 | |
84957a8a | 1872 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; |
1da177e4 | 1873 | memset(&state, 0, sizeof(state)); |
84957a8a CL |
1874 | state.chip = mixer->chip; |
1875 | state.mixer = mixer; | |
1da177e4 LT |
1876 | state.buffer = hostif->extra; |
1877 | state.buflen = hostif->extralen; | |
1da177e4 LT |
1878 | |
1879 | /* check the mapping table */ | |
27d10f56 CL |
1880 | for (map = usbmix_ctl_maps; map->id; map++) { |
1881 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 1882 | state.map = map->map; |
8e062ec7 | 1883 | state.selector_map = map->selector_map; |
84957a8a | 1884 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
1885 | break; |
1886 | } | |
1887 | } | |
1da177e4 | 1888 | |
23caaf19 DM |
1889 | p = NULL; |
1890 | while ((p = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, p, UAC_OUTPUT_TERMINAL)) != NULL) { | |
1891 | if (mixer->protocol == UAC_VERSION_1) { | |
1892 | struct uac_output_terminal_descriptor_v1 *desc = p; | |
1893 | ||
1894 | if (desc->bLength < sizeof(*desc)) | |
1895 | continue; /* invalid descriptor? */ | |
1896 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
1897 | state.oterm.id = desc->bTerminalID; | |
1898 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1899 | state.oterm.name = desc->iTerminal; | |
1900 | err = parse_audio_unit(&state, desc->bSourceID); | |
1901 | if (err < 0) | |
1902 | return err; | |
1903 | } else { /* UAC_VERSION_2 */ | |
1904 | struct uac2_output_terminal_descriptor *desc = p; | |
1905 | ||
1906 | if (desc->bLength < sizeof(*desc)) | |
1907 | continue; /* invalid descriptor? */ | |
1908 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
1909 | state.oterm.id = desc->bTerminalID; | |
1910 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1911 | state.oterm.name = desc->iTerminal; | |
1912 | err = parse_audio_unit(&state, desc->bSourceID); | |
1913 | if (err < 0) | |
1914 | return err; | |
1915 | } | |
1da177e4 | 1916 | } |
23caaf19 | 1917 | |
1da177e4 LT |
1918 | return 0; |
1919 | } | |
84957a8a | 1920 | |
7b1eda22 | 1921 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 1922 | { |
86e07d34 | 1923 | struct usb_mixer_elem_info *info; |
6639b6c2 CL |
1924 | |
1925 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) | |
1926 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
1927 | info->elem_id); | |
1928 | } | |
1929 | ||
ebfdeea3 JK |
1930 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
1931 | int unitid, | |
1932 | struct usb_mixer_elem_info *cval) | |
1933 | { | |
1934 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", | |
1935 | "S8", "U8", "S16", "U16"}; | |
1936 | snd_iprintf(buffer, " Unit: %i\n", unitid); | |
1937 | if (cval->elem_id) | |
1938 | snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", | |
1939 | cval->elem_id->name, cval->elem_id->index); | |
1940 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " | |
1941 | "channels=%i, type=\"%s\"\n", cval->id, | |
1942 | cval->control, cval->cmask, cval->channels, | |
1943 | val_types[cval->val_type]); | |
1944 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
1945 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
1946 | } | |
1947 | ||
1948 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
1949 | struct snd_info_buffer *buffer) | |
1950 | { | |
1951 | struct snd_usb_audio *chip = entry->private_data; | |
1952 | struct usb_mixer_interface *mixer; | |
1953 | struct usb_mixer_elem_info *cval; | |
1954 | int unitid; | |
1955 | ||
1956 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
1957 | snd_iprintf(buffer, | |
7affdc17 JK |
1958 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
1959 | chip->usb_id, mixer->ctrlif, | |
1960 | mixer->ignore_ctl_error); | |
ebfdeea3 JK |
1961 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
1962 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
1963 | for (cval = mixer->id_elems[unitid]; cval; | |
1964 | cval = cval->next_id_elem) | |
1965 | snd_usb_mixer_dump_cval(buffer, unitid, cval); | |
1966 | } | |
1967 | } | |
1968 | } | |
1969 | ||
e213e9cf DM |
1970 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
1971 | int attribute, int value, int index) | |
1972 | { | |
1973 | struct usb_mixer_elem_info *info; | |
1974 | __u8 unitid = (index >> 8) & 0xff; | |
1975 | __u8 control = (value >> 8) & 0xff; | |
1976 | __u8 channel = value & 0xff; | |
1977 | ||
1978 | if (channel >= MAX_CHANNELS) { | |
1979 | snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", | |
1980 | __func__, channel); | |
1981 | return; | |
1982 | } | |
1983 | ||
1984 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { | |
1985 | if (info->control != control) | |
1986 | continue; | |
1987 | ||
1988 | switch (attribute) { | |
1989 | case UAC2_CS_CUR: | |
1990 | /* invalidate cache, so the value is read from the device */ | |
1991 | if (channel) | |
1992 | info->cached &= ~(1 << channel); | |
1993 | else /* master channel */ | |
1994 | info->cached = 0; | |
1995 | ||
1996 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
1997 | info->elem_id); | |
1998 | break; | |
1999 | ||
2000 | case UAC2_CS_RANGE: | |
2001 | /* TODO */ | |
2002 | break; | |
2003 | ||
2004 | case UAC2_CS_MEM: | |
2005 | /* TODO */ | |
2006 | break; | |
2007 | ||
2008 | default: | |
2009 | snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", | |
2010 | attribute); | |
2011 | break; | |
2012 | } /* switch */ | |
2013 | } | |
2014 | } | |
2015 | ||
2016 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2017 | { |
2018 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf DM |
2019 | int len = urb->actual_length; |
2020 | ||
2021 | if (urb->status != 0) | |
2022 | goto requeue; | |
6639b6c2 | 2023 | |
e213e9cf DM |
2024 | if (mixer->protocol == UAC_VERSION_1) { |
2025 | struct uac1_status_word *status; | |
6639b6c2 | 2026 | |
e213e9cf DM |
2027 | for (status = urb->transfer_buffer; |
2028 | len >= sizeof(*status); | |
2029 | len -= sizeof(*status), status++) { | |
6639b6c2 | 2030 | snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", |
e213e9cf DM |
2031 | status->bStatusType, |
2032 | status->bOriginator); | |
2033 | ||
6639b6c2 | 2034 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2035 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2036 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2037 | continue; |
e213e9cf DM |
2038 | |
2039 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2040 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2041 | else |
e213e9cf DM |
2042 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2043 | } | |
2044 | } else { /* UAC_VERSION_2 */ | |
2045 | struct uac2_interrupt_data_msg *msg; | |
2046 | ||
2047 | for (msg = urb->transfer_buffer; | |
2048 | len >= sizeof(*msg); | |
2049 | len -= sizeof(*msg), msg++) { | |
2050 | /* drop vendor specific and endpoint requests */ | |
2051 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2052 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2053 | continue; | |
2054 | ||
2055 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2056 | le16_to_cpu(msg->wValue), | |
2057 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2058 | } |
2059 | } | |
e213e9cf DM |
2060 | |
2061 | requeue: | |
6639b6c2 CL |
2062 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) { |
2063 | urb->dev = mixer->chip->dev; | |
2064 | usb_submit_urb(urb, GFP_ATOMIC); | |
2065 | } | |
2066 | } | |
2067 | ||
2068 | /* create the handler for the optional status interrupt endpoint */ | |
2069 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2070 | { | |
2071 | struct usb_host_interface *hostif; | |
2072 | struct usb_endpoint_descriptor *ep; | |
2073 | void *transfer_buffer; | |
2074 | int buffer_length; | |
2075 | unsigned int epnum; | |
2076 | ||
2077 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; | |
2078 | /* we need one interrupt input endpoint */ | |
2079 | if (get_iface_desc(hostif)->bNumEndpoints < 1) | |
2080 | return 0; | |
2081 | ep = get_endpoint(hostif, 0); | |
913ae5a2 | 2082 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2083 | return 0; |
2084 | ||
42a6e66f | 2085 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2086 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2087 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2088 | if (!transfer_buffer) | |
2089 | return -ENOMEM; | |
2090 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2091 | if (!mixer->urb) { | |
2092 | kfree(transfer_buffer); | |
2093 | return -ENOMEM; | |
2094 | } | |
2095 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2096 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2097 | transfer_buffer, buffer_length, | |
e213e9cf | 2098 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2099 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2100 | return 0; | |
2101 | } | |
2102 | ||
7a9b8063 TI |
2103 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2104 | int ignore_error) | |
84957a8a | 2105 | { |
86e07d34 | 2106 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2107 | .dev_free = snd_usb_mixer_dev_free |
2108 | }; | |
2109 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2110 | struct snd_info_entry *entry; |
7b8a043f | 2111 | struct usb_host_interface *host_iface; |
23caaf19 | 2112 | int err; |
84957a8a CL |
2113 | |
2114 | strcpy(chip->card->mixername, "USB Mixer"); | |
2115 | ||
561b220a | 2116 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2117 | if (!mixer) |
2118 | return -ENOMEM; | |
2119 | mixer->chip = chip; | |
2120 | mixer->ctrlif = ctrlif; | |
7a9b8063 | 2121 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2122 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2123 | GFP_KERNEL); | |
6639b6c2 CL |
2124 | if (!mixer->id_elems) { |
2125 | kfree(mixer); | |
2126 | return -ENOMEM; | |
2127 | } | |
84957a8a | 2128 | |
7b8a043f | 2129 | host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
ca4c2ada | 2130 | mixer->protocol = get_iface_desc(host_iface)->bInterfaceProtocol; |
7b8a043f | 2131 | |
6639b6c2 | 2132 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2133 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2134 | goto _error; | |
84957a8a | 2135 | |
7b1eda22 | 2136 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2137 | |
84957a8a | 2138 | err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); |
93446edc CL |
2139 | if (err < 0) |
2140 | goto _error; | |
ebfdeea3 JK |
2141 | |
2142 | if (list_empty(&chip->mixer_list) && | |
2143 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2144 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2145 | ||
84957a8a CL |
2146 | list_add(&mixer->list, &chip->mixer_list); |
2147 | return 0; | |
93446edc CL |
2148 | |
2149 | _error: | |
2150 | snd_usb_mixer_free(mixer); | |
2151 | return err; | |
84957a8a CL |
2152 | } |
2153 | ||
2154 | void snd_usb_mixer_disconnect(struct list_head *p) | |
2155 | { | |
6639b6c2 | 2156 | struct usb_mixer_interface *mixer; |
7b1eda22 | 2157 | |
6639b6c2 | 2158 | mixer = list_entry(p, struct usb_mixer_interface, list); |
68df9de1 MK |
2159 | usb_kill_urb(mixer->urb); |
2160 | usb_kill_urb(mixer->rc_urb); | |
84957a8a | 2161 | } |