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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 DM |
35 | #include <linux/usb/audio.h> |
36 | ||
1da177e4 LT |
37 | #include <sound/core.h> |
38 | #include <sound/control.h> | |
b259b10c | 39 | #include <sound/hwdep.h> |
aafad562 | 40 | #include <sound/info.h> |
7bc5ba7e | 41 | #include <sound/tlv.h> |
1da177e4 LT |
42 | |
43 | #include "usbaudio.h" | |
3e1aebef | 44 | #include "usbmixer.h" |
e5779998 | 45 | #include "helper.h" |
7b1eda22 | 46 | #include "mixer_quirks.h" |
4d1a70da | 47 | |
ebfdeea3 JK |
48 | #define MAX_ID_ELEMS 256 |
49 | ||
1da177e4 LT |
50 | struct usb_audio_term { |
51 | int id; | |
52 | int type; | |
53 | int channels; | |
54 | unsigned int chconfig; | |
55 | int name; | |
56 | }; | |
57 | ||
58 | struct usbmix_name_map; | |
59 | ||
86e07d34 TI |
60 | struct mixer_build { |
61 | struct snd_usb_audio *chip; | |
84957a8a | 62 | struct usb_mixer_interface *mixer; |
1da177e4 LT |
63 | unsigned char *buffer; |
64 | unsigned int buflen; | |
291186e0 | 65 | DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); |
86e07d34 | 66 | struct usb_audio_term oterm; |
1da177e4 | 67 | const struct usbmix_name_map *map; |
8e062ec7 | 68 | const struct usbmix_selector_map *selector_map; |
1da177e4 LT |
69 | }; |
70 | ||
1da177e4 LT |
71 | enum { |
72 | USB_MIXER_BOOLEAN, | |
73 | USB_MIXER_INV_BOOLEAN, | |
74 | USB_MIXER_S8, | |
75 | USB_MIXER_U8, | |
76 | USB_MIXER_S16, | |
77 | USB_MIXER_U16, | |
78 | }; | |
79 | ||
80 | enum { | |
81 | USB_PROC_UPDOWN = 1, | |
82 | USB_PROC_UPDOWN_SWITCH = 1, | |
83 | USB_PROC_UPDOWN_MODE_SEL = 2, | |
84 | ||
85 | USB_PROC_PROLOGIC = 2, | |
86 | USB_PROC_PROLOGIC_SWITCH = 1, | |
87 | USB_PROC_PROLOGIC_MODE_SEL = 2, | |
88 | ||
89 | USB_PROC_3DENH = 3, | |
90 | USB_PROC_3DENH_SWITCH = 1, | |
91 | USB_PROC_3DENH_SPACE = 2, | |
92 | ||
93 | USB_PROC_REVERB = 4, | |
94 | USB_PROC_REVERB_SWITCH = 1, | |
95 | USB_PROC_REVERB_LEVEL = 2, | |
96 | USB_PROC_REVERB_TIME = 3, | |
97 | USB_PROC_REVERB_DELAY = 4, | |
98 | ||
99 | USB_PROC_CHORUS = 5, | |
100 | USB_PROC_CHORUS_SWITCH = 1, | |
101 | USB_PROC_CHORUS_LEVEL = 2, | |
102 | USB_PROC_CHORUS_RATE = 3, | |
103 | USB_PROC_CHORUS_DEPTH = 4, | |
104 | ||
105 | USB_PROC_DCR = 6, | |
106 | USB_PROC_DCR_SWITCH = 1, | |
107 | USB_PROC_DCR_RATIO = 2, | |
108 | USB_PROC_DCR_MAX_AMP = 3, | |
109 | USB_PROC_DCR_THRESHOLD = 4, | |
110 | USB_PROC_DCR_ATTACK = 5, | |
111 | USB_PROC_DCR_RELEASE = 6, | |
112 | }; | |
113 | ||
7d2b451e SK |
114 | /*E-mu 0202(0404) eXtension Unit(XU) control*/ |
115 | enum { | |
116 | USB_XU_CLOCK_RATE = 0xe301, | |
117 | USB_XU_CLOCK_SOURCE = 0xe302, | |
118 | USB_XU_DIGITAL_IO_STATUS = 0xe303, | |
119 | USB_XU_DEVICE_OPTIONS = 0xe304, | |
120 | USB_XU_DIRECT_MONITORING = 0xe305, | |
121 | USB_XU_METERING = 0xe306 | |
122 | }; | |
123 | enum { | |
124 | USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ | |
125 | USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ | |
126 | USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ | |
127 | USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ | |
128 | }; | |
1da177e4 LT |
129 | |
130 | /* | |
131 | * manual mapping of mixer names | |
132 | * if the mixer topology is too complicated and the parsed names are | |
133 | * ambiguous, add the entries in usbmixer_maps.c. | |
134 | */ | |
135 | #include "usbmixer_maps.c" | |
136 | ||
c3a3e040 JK |
137 | static const struct usbmix_name_map * |
138 | find_map(struct mixer_build *state, int unitid, int control) | |
1da177e4 | 139 | { |
c3a3e040 | 140 | const struct usbmix_name_map *p = state->map; |
1da177e4 | 141 | |
c3a3e040 JK |
142 | if (!p) |
143 | return NULL; | |
1da177e4 LT |
144 | |
145 | for (p = state->map; p->id; p++) { | |
c3a3e040 JK |
146 | if (p->id == unitid && |
147 | (!control || !p->control || control == p->control)) | |
148 | return p; | |
1da177e4 | 149 | } |
c3a3e040 | 150 | return NULL; |
1da177e4 LT |
151 | } |
152 | ||
c3a3e040 JK |
153 | /* get the mapped name if the unit matches */ |
154 | static int | |
155 | check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) | |
1da177e4 | 156 | { |
c3a3e040 JK |
157 | if (!p || !p->name) |
158 | return 0; | |
1da177e4 | 159 | |
c3a3e040 JK |
160 | buflen--; |
161 | return strlcpy(buf, p->name, buflen); | |
162 | } | |
163 | ||
164 | /* check whether the control should be ignored */ | |
165 | static inline int | |
166 | check_ignored_ctl(const struct usbmix_name_map *p) | |
167 | { | |
168 | if (!p || p->name || p->dB) | |
1da177e4 | 169 | return 0; |
c3a3e040 JK |
170 | return 1; |
171 | } | |
172 | ||
173 | /* dB mapping */ | |
174 | static inline void check_mapped_dB(const struct usbmix_name_map *p, | |
175 | struct usb_mixer_elem_info *cval) | |
176 | { | |
177 | if (p && p->dB) { | |
178 | cval->dBmin = p->dB->min; | |
179 | cval->dBmax = p->dB->max; | |
1da177e4 | 180 | } |
1da177e4 LT |
181 | } |
182 | ||
8e062ec7 | 183 | /* get the mapped selector source name */ |
86e07d34 | 184 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
185 | int index, char *buf, int buflen) |
186 | { | |
187 | const struct usbmix_selector_map *p; | |
188 | ||
189 | if (! state->selector_map) | |
190 | return 0; | |
191 | for (p = state->selector_map; p->id; p++) { | |
192 | if (p->id == unitid && index < p->count) | |
193 | return strlcpy(buf, p->names[index], buflen); | |
194 | } | |
195 | return 0; | |
196 | } | |
197 | ||
1da177e4 LT |
198 | /* |
199 | * find an audio control unit with the given unit id | |
200 | */ | |
86e07d34 | 201 | static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) |
1da177e4 LT |
202 | { |
203 | unsigned char *p; | |
204 | ||
205 | p = NULL; | |
206 | while ((p = snd_usb_find_desc(state->buffer, state->buflen, p, | |
207 | USB_DT_CS_INTERFACE)) != NULL) { | |
de48c7bc | 208 | if (p[0] >= 4 && p[2] >= UAC_INPUT_TERMINAL && p[2] <= UAC_EXTENSION_UNIT_V1 && p[3] == unit) |
1da177e4 LT |
209 | return p; |
210 | } | |
211 | return NULL; | |
212 | } | |
213 | ||
214 | ||
215 | /* | |
216 | * copy a string with the given id | |
217 | */ | |
86e07d34 | 218 | static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) |
1da177e4 LT |
219 | { |
220 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
221 | buf[len] = 0; | |
222 | return len; | |
223 | } | |
224 | ||
225 | /* | |
226 | * convert from the byte/word on usb descriptor to the zero-based integer | |
227 | */ | |
86e07d34 | 228 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
229 | { |
230 | switch (cval->val_type) { | |
231 | case USB_MIXER_BOOLEAN: | |
232 | return !!val; | |
233 | case USB_MIXER_INV_BOOLEAN: | |
234 | return !val; | |
235 | case USB_MIXER_U8: | |
236 | val &= 0xff; | |
237 | break; | |
238 | case USB_MIXER_S8: | |
239 | val &= 0xff; | |
240 | if (val >= 0x80) | |
241 | val -= 0x100; | |
242 | break; | |
243 | case USB_MIXER_U16: | |
244 | val &= 0xffff; | |
245 | break; | |
246 | case USB_MIXER_S16: | |
247 | val &= 0xffff; | |
248 | if (val >= 0x8000) | |
249 | val -= 0x10000; | |
250 | break; | |
251 | } | |
252 | return val; | |
253 | } | |
254 | ||
255 | /* | |
256 | * convert from the zero-based int to the byte/word for usb descriptor | |
257 | */ | |
86e07d34 | 258 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
259 | { |
260 | switch (cval->val_type) { | |
261 | case USB_MIXER_BOOLEAN: | |
262 | return !!val; | |
263 | case USB_MIXER_INV_BOOLEAN: | |
264 | return !val; | |
265 | case USB_MIXER_S8: | |
266 | case USB_MIXER_U8: | |
267 | return val & 0xff; | |
268 | case USB_MIXER_S16: | |
269 | case USB_MIXER_U16: | |
270 | return val & 0xffff; | |
271 | } | |
272 | return 0; /* not reached */ | |
273 | } | |
274 | ||
86e07d34 | 275 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
276 | { |
277 | if (! cval->res) | |
278 | cval->res = 1; | |
279 | if (val < cval->min) | |
280 | return 0; | |
14790f1c TI |
281 | else if (val >= cval->max) |
282 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
283 | else |
284 | return (val - cval->min) / cval->res; | |
285 | } | |
286 | ||
86e07d34 | 287 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
288 | { |
289 | if (val < 0) | |
290 | return cval->min; | |
291 | if (! cval->res) | |
292 | cval->res = 1; | |
293 | val *= cval->res; | |
294 | val += cval->min; | |
295 | if (val > cval->max) | |
296 | return cval->max; | |
297 | return val; | |
298 | } | |
299 | ||
300 | ||
301 | /* | |
302 | * retrieve a mixer value | |
303 | */ | |
304 | ||
86e07d34 | 305 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
1da177e4 LT |
306 | { |
307 | unsigned char buf[2]; | |
308 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
309 | int timeout = 10; | |
310 | ||
311 | while (timeout-- > 0) { | |
84957a8a CL |
312 | if (snd_usb_ctl_msg(cval->mixer->chip->dev, |
313 | usb_rcvctrlpipe(cval->mixer->chip->dev, 0), | |
1da177e4 LT |
314 | request, |
315 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
84957a8a | 316 | validx, cval->mixer->ctrlif | (cval->id << 8), |
a04395ea | 317 | buf, val_len, 100) >= val_len) { |
1da177e4 LT |
318 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
319 | return 0; | |
320 | } | |
321 | } | |
84957a8a CL |
322 | snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
323 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); | |
1da177e4 LT |
324 | return -EINVAL; |
325 | } | |
326 | ||
86e07d34 | 327 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) |
1da177e4 | 328 | { |
de48c7bc | 329 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
330 | } |
331 | ||
332 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
333 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
334 | int channel, int *value) | |
1da177e4 | 335 | { |
de48c7bc | 336 | return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); |
1da177e4 LT |
337 | } |
338 | ||
641b4879 TI |
339 | static int get_cur_mix_value(struct usb_mixer_elem_info *cval, |
340 | int channel, int index, int *value) | |
341 | { | |
342 | int err; | |
343 | ||
344 | if (cval->cached & (1 << channel)) { | |
345 | *value = cval->cache_val[index]; | |
346 | return 0; | |
347 | } | |
348 | err = get_cur_mix_raw(cval, channel, value); | |
349 | if (err < 0) { | |
350 | if (!cval->mixer->ignore_ctl_error) | |
351 | snd_printd(KERN_ERR "cannot get current value for " | |
352 | "control %d ch %d: err = %d\n", | |
353 | cval->control, channel, err); | |
354 | return err; | |
355 | } | |
356 | cval->cached |= 1 << channel; | |
357 | cval->cache_val[index] = *value; | |
358 | return 0; | |
359 | } | |
360 | ||
361 | ||
1da177e4 LT |
362 | /* |
363 | * set a mixer value | |
364 | */ | |
365 | ||
7b1eda22 DM |
366 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
367 | int request, int validx, int value_set) | |
1da177e4 LT |
368 | { |
369 | unsigned char buf[2]; | |
370 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
371 | int timeout = 10; | |
372 | ||
373 | value_set = convert_bytes_value(cval, value_set); | |
374 | buf[0] = value_set & 0xff; | |
375 | buf[1] = (value_set >> 8) & 0xff; | |
cf3f9130 | 376 | while (timeout-- > 0) |
84957a8a CL |
377 | if (snd_usb_ctl_msg(cval->mixer->chip->dev, |
378 | usb_sndctrlpipe(cval->mixer->chip->dev, 0), | |
1da177e4 LT |
379 | request, |
380 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | |
84957a8a | 381 | validx, cval->mixer->ctrlif | (cval->id << 8), |
1da177e4 LT |
382 | buf, val_len, 100) >= 0) |
383 | return 0; | |
84957a8a CL |
384 | snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
385 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type, buf[0], buf[1]); | |
1da177e4 LT |
386 | return -EINVAL; |
387 | } | |
388 | ||
86e07d34 | 389 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) |
1da177e4 | 390 | { |
7b1eda22 | 391 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
392 | } |
393 | ||
641b4879 TI |
394 | static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
395 | int index, int value) | |
1da177e4 | 396 | { |
641b4879 | 397 | int err; |
7b1eda22 | 398 | err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, |
641b4879 TI |
399 | value); |
400 | if (err < 0) | |
401 | return err; | |
402 | cval->cached |= 1 << channel; | |
403 | cval->cache_val[index] = value; | |
404 | return 0; | |
1da177e4 LT |
405 | } |
406 | ||
7bc5ba7e TI |
407 | /* |
408 | * TLV callback for mixer volume controls | |
409 | */ | |
410 | static int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, | |
411 | unsigned int size, unsigned int __user *_tlv) | |
412 | { | |
413 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 414 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
415 | |
416 | if (size < sizeof(scale)) | |
417 | return -ENOMEM; | |
c3a3e040 JK |
418 | scale[2] = cval->dBmin; |
419 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
420 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
421 | return -EFAULT; | |
422 | return 0; | |
423 | } | |
1da177e4 LT |
424 | |
425 | /* | |
426 | * parser routines begin here... | |
427 | */ | |
428 | ||
86e07d34 | 429 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
430 | |
431 | ||
432 | /* | |
433 | * check if the input/output channel routing is enabled on the given bitmap. | |
434 | * used for mixer unit parser | |
435 | */ | |
436 | static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) | |
437 | { | |
438 | int idx = ich * num_outs + och; | |
439 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
440 | } | |
441 | ||
442 | ||
443 | /* | |
444 | * add an alsa control element | |
445 | * search and increment the index until an empty slot is found. | |
446 | * | |
447 | * if failed, give up and free the control instance. | |
448 | */ | |
449 | ||
86e07d34 | 450 | static int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl) |
1da177e4 | 451 | { |
86e07d34 | 452 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 453 | int err; |
84957a8a CL |
454 | |
455 | while (snd_ctl_find_id(state->chip->card, &kctl->id)) | |
1da177e4 | 456 | kctl->id.index++; |
84957a8a | 457 | if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) { |
1da177e4 | 458 | snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); |
6639b6c2 | 459 | return err; |
1da177e4 | 460 | } |
6639b6c2 CL |
461 | cval->elem_id = &kctl->id; |
462 | cval->next_id_elem = state->mixer->id_elems[cval->id]; | |
463 | state->mixer->id_elems[cval->id] = cval; | |
464 | return 0; | |
1da177e4 LT |
465 | } |
466 | ||
467 | ||
468 | /* | |
469 | * get a terminal name string | |
470 | */ | |
471 | ||
472 | static struct iterm_name_combo { | |
473 | int type; | |
474 | char *name; | |
475 | } iterm_names[] = { | |
476 | { 0x0300, "Output" }, | |
477 | { 0x0301, "Speaker" }, | |
478 | { 0x0302, "Headphone" }, | |
479 | { 0x0303, "HMD Audio" }, | |
480 | { 0x0304, "Desktop Speaker" }, | |
481 | { 0x0305, "Room Speaker" }, | |
482 | { 0x0306, "Com Speaker" }, | |
483 | { 0x0307, "LFE" }, | |
484 | { 0x0600, "External In" }, | |
485 | { 0x0601, "Analog In" }, | |
486 | { 0x0602, "Digital In" }, | |
487 | { 0x0603, "Line" }, | |
488 | { 0x0604, "Legacy In" }, | |
489 | { 0x0605, "IEC958 In" }, | |
490 | { 0x0606, "1394 DA Stream" }, | |
491 | { 0x0607, "1394 DV Stream" }, | |
492 | { 0x0700, "Embedded" }, | |
493 | { 0x0701, "Noise Source" }, | |
494 | { 0x0702, "Equalization Noise" }, | |
495 | { 0x0703, "CD" }, | |
496 | { 0x0704, "DAT" }, | |
497 | { 0x0705, "DCC" }, | |
498 | { 0x0706, "MiniDisk" }, | |
499 | { 0x0707, "Analog Tape" }, | |
500 | { 0x0708, "Phonograph" }, | |
501 | { 0x0709, "VCR Audio" }, | |
502 | { 0x070a, "Video Disk Audio" }, | |
503 | { 0x070b, "DVD Audio" }, | |
504 | { 0x070c, "TV Tuner Audio" }, | |
505 | { 0x070d, "Satellite Rec Audio" }, | |
506 | { 0x070e, "Cable Tuner Audio" }, | |
507 | { 0x070f, "DSS Audio" }, | |
508 | { 0x0710, "Radio Receiver" }, | |
509 | { 0x0711, "Radio Transmitter" }, | |
510 | { 0x0712, "Multi-Track Recorder" }, | |
511 | { 0x0713, "Synthesizer" }, | |
512 | { 0 }, | |
513 | }; | |
514 | ||
86e07d34 | 515 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
516 | unsigned char *name, int maxlen, int term_only) |
517 | { | |
518 | struct iterm_name_combo *names; | |
519 | ||
520 | if (iterm->name) | |
521 | return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); | |
522 | ||
523 | /* virtual type - not a real terminal */ | |
524 | if (iterm->type >> 16) { | |
525 | if (term_only) | |
526 | return 0; | |
527 | switch (iterm->type >> 16) { | |
de48c7bc | 528 | case UAC_SELECTOR_UNIT: |
1da177e4 | 529 | strcpy(name, "Selector"); return 8; |
de48c7bc | 530 | case UAC_PROCESSING_UNIT_V1: |
1da177e4 | 531 | strcpy(name, "Process Unit"); return 12; |
de48c7bc | 532 | case UAC_EXTENSION_UNIT_V1: |
1da177e4 | 533 | strcpy(name, "Ext Unit"); return 8; |
de48c7bc | 534 | case UAC_MIXER_UNIT: |
1da177e4 LT |
535 | strcpy(name, "Mixer"); return 5; |
536 | default: | |
537 | return sprintf(name, "Unit %d", iterm->id); | |
538 | } | |
539 | } | |
540 | ||
541 | switch (iterm->type & 0xff00) { | |
542 | case 0x0100: | |
543 | strcpy(name, "PCM"); return 3; | |
544 | case 0x0200: | |
545 | strcpy(name, "Mic"); return 3; | |
546 | case 0x0400: | |
547 | strcpy(name, "Headset"); return 7; | |
548 | case 0x0500: | |
549 | strcpy(name, "Phone"); return 5; | |
550 | } | |
551 | ||
552 | for (names = iterm_names; names->type; names++) | |
553 | if (names->type == iterm->type) { | |
554 | strcpy(name, names->name); | |
555 | return strlen(names->name); | |
556 | } | |
557 | return 0; | |
558 | } | |
559 | ||
560 | ||
561 | /* | |
562 | * parse the source unit recursively until it reaches to a terminal | |
563 | * or a branched unit. | |
564 | */ | |
86e07d34 | 565 | static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) |
1da177e4 LT |
566 | { |
567 | unsigned char *p1; | |
568 | ||
569 | memset(term, 0, sizeof(*term)); | |
570 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
571 | term->id = id; | |
572 | switch (p1[2]) { | |
de48c7bc | 573 | case UAC_INPUT_TERMINAL: |
1da177e4 LT |
574 | term->type = combine_word(p1 + 4); |
575 | term->channels = p1[7]; | |
576 | term->chconfig = combine_word(p1 + 8); | |
577 | term->name = p1[11]; | |
578 | return 0; | |
de48c7bc | 579 | case UAC_FEATURE_UNIT: |
1da177e4 LT |
580 | id = p1[4]; |
581 | break; /* continue to parse */ | |
de48c7bc | 582 | case UAC_MIXER_UNIT: |
1da177e4 LT |
583 | term->type = p1[2] << 16; /* virtual type */ |
584 | term->channels = p1[5 + p1[4]]; | |
585 | term->chconfig = combine_word(p1 + 6 + p1[4]); | |
586 | term->name = p1[p1[0] - 1]; | |
587 | return 0; | |
de48c7bc | 588 | case UAC_SELECTOR_UNIT: |
1da177e4 LT |
589 | /* call recursively to retrieve the channel info */ |
590 | if (check_input_term(state, p1[5], term) < 0) | |
591 | return -ENODEV; | |
592 | term->type = p1[2] << 16; /* virtual type */ | |
593 | term->id = id; | |
594 | term->name = p1[9 + p1[0] - 1]; | |
595 | return 0; | |
de48c7bc DM |
596 | case UAC_PROCESSING_UNIT_V1: |
597 | case UAC_EXTENSION_UNIT_V1: | |
1da177e4 LT |
598 | if (p1[6] == 1) { |
599 | id = p1[7]; | |
600 | break; /* continue to parse */ | |
601 | } | |
602 | term->type = p1[2] << 16; /* virtual type */ | |
603 | term->channels = p1[7 + p1[6]]; | |
604 | term->chconfig = combine_word(p1 + 8 + p1[6]); | |
605 | term->name = p1[12 + p1[6] + p1[11 + p1[6]]]; | |
606 | return 0; | |
607 | default: | |
608 | return -ENODEV; | |
609 | } | |
610 | } | |
611 | return -ENODEV; | |
612 | } | |
613 | ||
614 | ||
615 | /* | |
616 | * Feature Unit | |
617 | */ | |
618 | ||
619 | /* feature unit control information */ | |
620 | struct usb_feature_control_info { | |
621 | const char *name; | |
622 | unsigned int type; /* control type (mute, volume, etc.) */ | |
623 | }; | |
624 | ||
625 | static struct usb_feature_control_info audio_feature_info[] = { | |
626 | { "Mute", USB_MIXER_INV_BOOLEAN }, | |
627 | { "Volume", USB_MIXER_S16 }, | |
628 | { "Tone Control - Bass", USB_MIXER_S8 }, | |
629 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
630 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
631 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
632 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, | |
633 | { "Delay Control", USB_MIXER_U16 }, | |
634 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
635 | { "Loudness", USB_MIXER_BOOLEAN }, | |
636 | }; | |
637 | ||
638 | ||
639 | /* private_free callback */ | |
86e07d34 | 640 | static void usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 641 | { |
4d572776 JJ |
642 | kfree(kctl->private_data); |
643 | kctl->private_data = NULL; | |
1da177e4 LT |
644 | } |
645 | ||
646 | ||
647 | /* | |
648 | * interface to ALSA control for feature/mixer units | |
649 | */ | |
650 | ||
651 | /* | |
652 | * retrieve the minimum and maximum values for the specified control | |
653 | */ | |
86e07d34 | 654 | static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) |
1da177e4 LT |
655 | { |
656 | /* for failsafe */ | |
657 | cval->min = default_min; | |
658 | cval->max = cval->min + 1; | |
659 | cval->res = 1; | |
c3a3e040 | 660 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
661 | |
662 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
663 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
664 | cval->initialized = 1; | |
665 | } else { | |
666 | int minchn = 0; | |
667 | if (cval->cmask) { | |
668 | int i; | |
669 | for (i = 0; i < MAX_CHANNELS; i++) | |
670 | if (cval->cmask & (1 << i)) { | |
671 | minchn = i + 1; | |
672 | break; | |
673 | } | |
674 | } | |
de48c7bc DM |
675 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
676 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
84957a8a CL |
677 | snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", |
678 | cval->id, cval->mixer->ctrlif, cval->control, cval->id); | |
1da177e4 LT |
679 | return -EINVAL; |
680 | } | |
de48c7bc | 681 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { |
1da177e4 LT |
682 | cval->res = 1; |
683 | } else { | |
684 | int last_valid_res = cval->res; | |
685 | ||
686 | while (cval->res > 1) { | |
7b1eda22 DM |
687 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
688 | (cval->control << 8) | minchn, cval->res / 2) < 0) | |
1da177e4 LT |
689 | break; |
690 | cval->res /= 2; | |
691 | } | |
de48c7bc | 692 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) |
1da177e4 LT |
693 | cval->res = last_valid_res; |
694 | } | |
695 | if (cval->res == 0) | |
696 | cval->res = 1; | |
14790f1c TI |
697 | |
698 | /* Additional checks for the proper resolution | |
699 | * | |
700 | * Some devices report smaller resolutions than actually | |
701 | * reacting. They don't return errors but simply clip | |
702 | * to the lower aligned value. | |
703 | */ | |
704 | if (cval->min + cval->res < cval->max) { | |
705 | int last_valid_res = cval->res; | |
706 | int saved, test, check; | |
641b4879 | 707 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
708 | for (;;) { |
709 | test = saved; | |
710 | if (test < cval->max) | |
711 | test += cval->res; | |
712 | else | |
713 | test -= cval->res; | |
714 | if (test < cval->min || test > cval->max || | |
641b4879 TI |
715 | set_cur_mix_value(cval, minchn, 0, test) || |
716 | get_cur_mix_raw(cval, minchn, &check)) { | |
14790f1c TI |
717 | cval->res = last_valid_res; |
718 | break; | |
719 | } | |
720 | if (test == check) | |
721 | break; | |
722 | cval->res *= 2; | |
723 | } | |
641b4879 | 724 | set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
725 | } |
726 | ||
1da177e4 LT |
727 | cval->initialized = 1; |
728 | } | |
c3a3e040 JK |
729 | |
730 | /* USB descriptions contain the dB scale in 1/256 dB unit | |
731 | * while ALSA TLV contains in 1/100 dB unit | |
732 | */ | |
733 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
734 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
735 | if (cval->dBmin > cval->dBmax) { | |
736 | /* something is wrong; assume it's either from/to 0dB */ | |
737 | if (cval->dBmin < 0) | |
738 | cval->dBmax = 0; | |
739 | else if (cval->dBmin > 0) | |
740 | cval->dBmin = 0; | |
741 | if (cval->dBmin > cval->dBmax) { | |
742 | /* totally crap, return an error */ | |
743 | return -EINVAL; | |
744 | } | |
745 | } | |
746 | ||
1da177e4 LT |
747 | return 0; |
748 | } | |
749 | ||
750 | ||
751 | /* get a feature/mixer unit info */ | |
86e07d34 | 752 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 753 | { |
86e07d34 | 754 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
755 | |
756 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
757 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
758 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
759 | else | |
760 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
761 | uinfo->count = cval->channels; | |
762 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
763 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
764 | uinfo->value.integer.min = 0; | |
765 | uinfo->value.integer.max = 1; | |
766 | } else { | |
767 | if (! cval->initialized) | |
768 | get_min_max(cval, 0); | |
769 | uinfo->value.integer.min = 0; | |
14790f1c TI |
770 | uinfo->value.integer.max = |
771 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
772 | } |
773 | return 0; | |
774 | } | |
775 | ||
776 | /* get the current value from feature/mixer unit */ | |
86e07d34 | 777 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 778 | { |
86e07d34 | 779 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
780 | int c, cnt, val, err; |
781 | ||
641b4879 | 782 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
783 | if (cval->cmask) { |
784 | cnt = 0; | |
785 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
786 | if (!(cval->cmask & (1 << c))) |
787 | continue; | |
788 | err = get_cur_mix_value(cval, c + 1, cnt, &val); | |
789 | if (err < 0) | |
790 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
791 | val = get_relative_value(cval, val); | |
792 | ucontrol->value.integer.value[cnt] = val; | |
793 | cnt++; | |
1da177e4 | 794 | } |
641b4879 | 795 | return 0; |
1da177e4 LT |
796 | } else { |
797 | /* master channel */ | |
641b4879 TI |
798 | err = get_cur_mix_value(cval, 0, 0, &val); |
799 | if (err < 0) | |
800 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1da177e4 LT |
801 | val = get_relative_value(cval, val); |
802 | ucontrol->value.integer.value[0] = val; | |
803 | } | |
804 | return 0; | |
805 | } | |
806 | ||
807 | /* put the current value to feature/mixer unit */ | |
86e07d34 | 808 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 809 | { |
86e07d34 | 810 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
811 | int c, cnt, val, oval, err; |
812 | int changed = 0; | |
813 | ||
814 | if (cval->cmask) { | |
815 | cnt = 0; | |
816 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
817 | if (!(cval->cmask & (1 << c))) |
818 | continue; | |
819 | err = get_cur_mix_value(cval, c + 1, cnt, &oval); | |
820 | if (err < 0) | |
821 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
822 | val = ucontrol->value.integer.value[cnt]; | |
823 | val = get_abs_value(cval, val); | |
824 | if (oval != val) { | |
825 | set_cur_mix_value(cval, c + 1, cnt, val); | |
826 | changed = 1; | |
1da177e4 | 827 | } |
641b4879 | 828 | cnt++; |
1da177e4 LT |
829 | } |
830 | } else { | |
831 | /* master channel */ | |
641b4879 | 832 | err = get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 833 | if (err < 0) |
641b4879 | 834 | return cval->mixer->ignore_ctl_error ? 0 : err; |
1da177e4 LT |
835 | val = ucontrol->value.integer.value[0]; |
836 | val = get_abs_value(cval, val); | |
837 | if (val != oval) { | |
641b4879 | 838 | set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
839 | changed = 1; |
840 | } | |
841 | } | |
842 | return changed; | |
843 | } | |
844 | ||
86e07d34 | 845 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
846 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
847 | .name = "", /* will be filled later manually */ | |
848 | .info = mixer_ctl_feature_info, | |
849 | .get = mixer_ctl_feature_get, | |
850 | .put = mixer_ctl_feature_put, | |
851 | }; | |
852 | ||
853 | ||
854 | /* | |
855 | * build a feature control | |
856 | */ | |
857 | ||
08d1e635 TI |
858 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
859 | { | |
860 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
861 | } | |
862 | ||
86e07d34 | 863 | static void build_feature_ctl(struct mixer_build *state, unsigned char *desc, |
1da177e4 | 864 | unsigned int ctl_mask, int control, |
86e07d34 | 865 | struct usb_audio_term *iterm, int unitid) |
1da177e4 LT |
866 | { |
867 | unsigned int len = 0; | |
868 | int mapped_name = 0; | |
869 | int nameid = desc[desc[0] - 1]; | |
86e07d34 TI |
870 | struct snd_kcontrol *kctl; |
871 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 872 | const struct usbmix_name_map *map; |
1da177e4 LT |
873 | |
874 | control++; /* change from zero-based to 1-based value */ | |
875 | ||
45d76056 | 876 | if (control == UAC_GRAPHIC_EQUALIZER_CONTROL) { |
1da177e4 LT |
877 | /* FIXME: not supported yet */ |
878 | return; | |
879 | } | |
880 | ||
c3a3e040 JK |
881 | map = find_map(state, unitid, control); |
882 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
883 | return; |
884 | ||
561b220a | 885 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
886 | if (! cval) { |
887 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
888 | return; | |
889 | } | |
84957a8a | 890 | cval->mixer = state->mixer; |
1da177e4 LT |
891 | cval->id = unitid; |
892 | cval->control = control; | |
893 | cval->cmask = ctl_mask; | |
894 | cval->val_type = audio_feature_info[control-1].type; | |
895 | if (ctl_mask == 0) | |
896 | cval->channels = 1; /* master channel */ | |
897 | else { | |
898 | int i, c = 0; | |
899 | for (i = 0; i < 16; i++) | |
900 | if (ctl_mask & (1 << i)) | |
901 | c++; | |
902 | cval->channels = c; | |
903 | } | |
904 | ||
905 | /* get min/max values */ | |
906 | get_min_max(cval, 0); | |
907 | ||
908 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
909 | if (! kctl) { | |
910 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
911 | kfree(cval); | |
912 | return; | |
913 | } | |
914 | kctl->private_free = usb_mixer_elem_free; | |
915 | ||
c3a3e040 | 916 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
917 | mapped_name = len != 0; |
918 | if (! len && nameid) | |
c3a3e040 JK |
919 | len = snd_usb_copy_string_desc(state, nameid, |
920 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
921 | |
922 | switch (control) { | |
45d76056 DM |
923 | case UAC_MUTE_CONTROL: |
924 | case UAC_VOLUME_CONTROL: | |
1da177e4 LT |
925 | /* determine the control name. the rule is: |
926 | * - if a name id is given in descriptor, use it. | |
927 | * - if the connected input can be determined, then use the name | |
928 | * of terminal type. | |
929 | * - if the connected output can be determined, use it. | |
930 | * - otherwise, anonymous name. | |
931 | */ | |
932 | if (! len) { | |
933 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
934 | if (! len) | |
935 | len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
936 | if (! len) | |
937 | len = snprintf(kctl->id.name, sizeof(kctl->id.name), | |
938 | "Feature %d", unitid); | |
939 | } | |
940 | /* determine the stream direction: | |
941 | * if the connected output is USB stream, then it's likely a | |
942 | * capture stream. otherwise it should be playback (hopefully :) | |
943 | */ | |
944 | if (! mapped_name && ! (state->oterm.type >> 16)) { | |
945 | if ((state->oterm.type & 0xff00) == 0x0100) { | |
08d1e635 | 946 | len = append_ctl_name(kctl, " Capture"); |
1da177e4 | 947 | } else { |
08d1e635 | 948 | len = append_ctl_name(kctl, " Playback"); |
1da177e4 LT |
949 | } |
950 | } | |
45d76056 | 951 | append_ctl_name(kctl, control == UAC_MUTE_CONTROL ? |
08d1e635 | 952 | " Switch" : " Volume"); |
45d76056 | 953 | if (control == UAC_VOLUME_CONTROL) { |
7bc5ba7e TI |
954 | kctl->tlv.c = mixer_vol_tlv; |
955 | kctl->vd[0].access |= | |
956 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
957 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
c3a3e040 | 958 | check_mapped_dB(map, cval); |
7bc5ba7e | 959 | } |
1da177e4 LT |
960 | break; |
961 | ||
962 | default: | |
963 | if (! len) | |
964 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, | |
965 | sizeof(kctl->id.name)); | |
966 | break; | |
967 | } | |
968 | ||
2cf313ee | 969 | /* volume control quirks */ |
27d10f56 CL |
970 | switch (state->chip->usb_id) { |
971 | case USB_ID(0x0471, 0x0101): | |
972 | case USB_ID(0x0471, 0x0104): | |
973 | case USB_ID(0x0471, 0x0105): | |
974 | case USB_ID(0x0672, 0x1041): | |
2cf313ee AF |
975 | /* quirk for UDA1321/N101. |
976 | * note that detection between firmware 2.1.1.7 (N101) | |
977 | * and later 2.1.1.21 is not very clear from datasheets. | |
978 | * I hope that the min value is -15360 for newer firmware --jk | |
979 | */ | |
27d10f56 CL |
980 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && |
981 | cval->min == -15616) { | |
2cf313ee AF |
982 | snd_printk(KERN_INFO |
983 | "set volume quirk for UDA1321/N101 chip\n"); | |
27d10f56 CL |
984 | cval->max = -256; |
985 | } | |
2cf313ee AF |
986 | break; |
987 | ||
988 | case USB_ID(0x046d, 0x09a4): | |
989 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
990 | snd_printk(KERN_INFO | |
991 | "set volume quirk for QuickCam E3500\n"); | |
992 | cval->min = 6080; | |
993 | cval->max = 8768; | |
994 | cval->res = 192; | |
995 | } | |
996 | break; | |
997 | ||
1da177e4 LT |
998 | } |
999 | ||
1000 | snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", | |
1001 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); | |
84957a8a | 1002 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1003 | } |
1004 | ||
1005 | ||
1006 | ||
1007 | /* | |
1008 | * parse a feature unit | |
1009 | * | |
1010 | * most of controlls are defined here. | |
1011 | */ | |
28e1b773 | 1012 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) |
1da177e4 LT |
1013 | { |
1014 | int channels, i, j; | |
86e07d34 | 1015 | struct usb_audio_term iterm; |
1da177e4 LT |
1016 | unsigned int master_bits, first_ch_bits; |
1017 | int err, csize; | |
28e1b773 | 1018 | struct uac_feature_unit_descriptor *ftr = _ftr; |
1da177e4 | 1019 | |
28e1b773 | 1020 | if (ftr->bLength < 7 || ! (csize = ftr->bControlSize) || ftr->bLength < 7 + csize) { |
de48c7bc | 1021 | snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); |
1da177e4 LT |
1022 | return -EINVAL; |
1023 | } | |
1024 | ||
1025 | /* parse the source unit */ | |
28e1b773 | 1026 | if ((err = parse_audio_unit(state, ftr->bSourceID)) < 0) |
1da177e4 LT |
1027 | return err; |
1028 | ||
1029 | /* determine the input source type and name */ | |
28e1b773 | 1030 | if (check_input_term(state, ftr->bSourceID, &iterm) < 0) |
1da177e4 LT |
1031 | return -EINVAL; |
1032 | ||
28e1b773 | 1033 | channels = (ftr->bLength - 7) / csize - 1; |
1da177e4 | 1034 | |
28e1b773 | 1035 | master_bits = snd_usb_combine_bytes(ftr->controls, csize); |
0c3cee57 JK |
1036 | /* master configuration quirks */ |
1037 | switch (state->chip->usb_id) { | |
1038 | case USB_ID(0x08bb, 0x2702): | |
1039 | snd_printk(KERN_INFO | |
1040 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
1041 | /* disable non-functional volume control */ | |
45d76056 | 1042 | master_bits &= ~UAC_FU_VOLUME; |
0c3cee57 JK |
1043 | break; |
1044 | } | |
1da177e4 | 1045 | if (channels > 0) |
28e1b773 | 1046 | first_ch_bits = snd_usb_combine_bytes(ftr->controls + csize, csize); |
1da177e4 LT |
1047 | else |
1048 | first_ch_bits = 0; | |
1049 | /* check all control types */ | |
1050 | for (i = 0; i < 10; i++) { | |
1051 | unsigned int ch_bits = 0; | |
1052 | for (j = 0; j < channels; j++) { | |
28e1b773 | 1053 | unsigned int mask = snd_usb_combine_bytes(ftr->controls + csize * (j+1), csize); |
1da177e4 LT |
1054 | if (mask & (1 << i)) |
1055 | ch_bits |= (1 << j); | |
1056 | } | |
1057 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ | |
28e1b773 | 1058 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid); |
1da177e4 | 1059 | if (master_bits & (1 << i)) |
28e1b773 | 1060 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid); |
1da177e4 LT |
1061 | } |
1062 | ||
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | ||
1067 | /* | |
1068 | * Mixer Unit | |
1069 | */ | |
1070 | ||
1071 | /* | |
1072 | * build a mixer unit control | |
1073 | * | |
1074 | * the callbacks are identical with feature unit. | |
1075 | * input channel number (zero based) is given in control field instead. | |
1076 | */ | |
1077 | ||
86e07d34 | 1078 | static void build_mixer_unit_ctl(struct mixer_build *state, unsigned char *desc, |
1da177e4 | 1079 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1080 | struct usb_audio_term *iterm) |
1da177e4 | 1081 | { |
86e07d34 | 1082 | struct usb_mixer_elem_info *cval; |
1da177e4 LT |
1083 | unsigned int input_pins = desc[4]; |
1084 | unsigned int num_outs = desc[5 + input_pins]; | |
1085 | unsigned int i, len; | |
86e07d34 | 1086 | struct snd_kcontrol *kctl; |
c3a3e040 | 1087 | const struct usbmix_name_map *map; |
1da177e4 | 1088 | |
c3a3e040 JK |
1089 | map = find_map(state, unitid, 0); |
1090 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1091 | return; |
1092 | ||
561b220a | 1093 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1094 | if (! cval) |
1095 | return; | |
1096 | ||
84957a8a | 1097 | cval->mixer = state->mixer; |
1da177e4 LT |
1098 | cval->id = unitid; |
1099 | cval->control = in_ch + 1; /* based on 1 */ | |
1100 | cval->val_type = USB_MIXER_S16; | |
1101 | for (i = 0; i < num_outs; i++) { | |
1102 | if (check_matrix_bitmap(desc + 9 + input_pins, in_ch, i, num_outs)) { | |
1103 | cval->cmask |= (1 << i); | |
1104 | cval->channels++; | |
1105 | } | |
1106 | } | |
1107 | ||
1108 | /* get min/max values */ | |
1109 | get_min_max(cval, 0); | |
1110 | ||
1111 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1112 | if (! kctl) { | |
1113 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1114 | kfree(cval); | |
1115 | return; | |
1116 | } | |
1117 | kctl->private_free = usb_mixer_elem_free; | |
1118 | ||
c3a3e040 | 1119 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1120 | if (! len) |
1121 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); | |
1122 | if (! len) | |
1123 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); | |
08d1e635 | 1124 | append_ctl_name(kctl, " Volume"); |
1da177e4 LT |
1125 | |
1126 | snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", | |
1127 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1128 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1129 | } |
1130 | ||
1131 | ||
1132 | /* | |
1133 | * parse a mixer unit | |
1134 | */ | |
86e07d34 | 1135 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, unsigned char *desc) |
1da177e4 | 1136 | { |
86e07d34 | 1137 | struct usb_audio_term iterm; |
1da177e4 LT |
1138 | int input_pins, num_ins, num_outs; |
1139 | int pin, ich, err; | |
1140 | ||
1141 | if (desc[0] < 11 || ! (input_pins = desc[4]) || ! (num_outs = desc[5 + input_pins])) { | |
1142 | snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); | |
1143 | return -EINVAL; | |
1144 | } | |
1145 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
1146 | if (desc[0] <= 10 + input_pins) { | |
1147 | snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); | |
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | num_ins = 0; | |
1152 | ich = 0; | |
1153 | for (pin = 0; pin < input_pins; pin++) { | |
1154 | err = parse_audio_unit(state, desc[5 + pin]); | |
1155 | if (err < 0) | |
1156 | return err; | |
1157 | err = check_input_term(state, desc[5 + pin], &iterm); | |
1158 | if (err < 0) | |
1159 | return err; | |
1160 | num_ins += iterm.channels; | |
1161 | for (; ich < num_ins; ++ich) { | |
1162 | int och, ich_has_controls = 0; | |
1163 | ||
1164 | for (och = 0; och < num_outs; ++och) { | |
1165 | if (check_matrix_bitmap(desc + 9 + input_pins, | |
1166 | ich, och, num_outs)) { | |
1167 | ich_has_controls = 1; | |
1168 | break; | |
1169 | } | |
1170 | } | |
1171 | if (ich_has_controls) | |
1172 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1173 | unitid, &iterm); | |
1174 | } | |
1175 | } | |
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | ||
1180 | /* | |
1181 | * Processing Unit / Extension Unit | |
1182 | */ | |
1183 | ||
1184 | /* get callback for processing/extension unit */ | |
86e07d34 | 1185 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1186 | { |
86e07d34 | 1187 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1188 | int err, val; |
1189 | ||
1190 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
84957a8a | 1191 | if (err < 0 && cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1192 | ucontrol->value.integer.value[0] = cval->min; |
1193 | return 0; | |
1194 | } | |
1195 | if (err < 0) | |
1196 | return err; | |
1197 | val = get_relative_value(cval, val); | |
1198 | ucontrol->value.integer.value[0] = val; | |
1199 | return 0; | |
1200 | } | |
1201 | ||
1202 | /* put callback for processing/extension unit */ | |
86e07d34 | 1203 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1204 | { |
86e07d34 | 1205 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1206 | int val, oval, err; |
1207 | ||
1208 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
1209 | if (err < 0) { | |
84957a8a | 1210 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1211 | return 0; |
1212 | return err; | |
1213 | } | |
1214 | val = ucontrol->value.integer.value[0]; | |
1215 | val = get_abs_value(cval, val); | |
1216 | if (val != oval) { | |
1217 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1218 | return 1; | |
1219 | } | |
1220 | return 0; | |
1221 | } | |
1222 | ||
1223 | /* alsa control interface for processing/extension unit */ | |
86e07d34 | 1224 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1225 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1226 | .name = "", /* will be filled later */ | |
1227 | .info = mixer_ctl_feature_info, | |
1228 | .get = mixer_ctl_procunit_get, | |
1229 | .put = mixer_ctl_procunit_put, | |
1230 | }; | |
1231 | ||
1232 | ||
1233 | /* | |
1234 | * predefined data for processing units | |
1235 | */ | |
1236 | struct procunit_value_info { | |
1237 | int control; | |
1238 | char *suffix; | |
1239 | int val_type; | |
1240 | int min_value; | |
1241 | }; | |
1242 | ||
1243 | struct procunit_info { | |
1244 | int type; | |
1245 | char *name; | |
1246 | struct procunit_value_info *values; | |
1247 | }; | |
1248 | ||
1249 | static struct procunit_value_info updown_proc_info[] = { | |
1250 | { USB_PROC_UPDOWN_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1251 | { USB_PROC_UPDOWN_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 }, | |
1252 | { 0 } | |
1253 | }; | |
1254 | static struct procunit_value_info prologic_proc_info[] = { | |
1255 | { USB_PROC_PROLOGIC_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1256 | { USB_PROC_PROLOGIC_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 }, | |
1257 | { 0 } | |
1258 | }; | |
1259 | static struct procunit_value_info threed_enh_proc_info[] = { | |
1260 | { USB_PROC_3DENH_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1261 | { USB_PROC_3DENH_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1262 | { 0 } | |
1263 | }; | |
1264 | static struct procunit_value_info reverb_proc_info[] = { | |
1265 | { USB_PROC_REVERB_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1266 | { USB_PROC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1267 | { USB_PROC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1268 | { USB_PROC_REVERB_DELAY, "Delay", USB_MIXER_U8 }, | |
1269 | { 0 } | |
1270 | }; | |
1271 | static struct procunit_value_info chorus_proc_info[] = { | |
1272 | { USB_PROC_CHORUS_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1273 | { USB_PROC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1274 | { USB_PROC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1275 | { USB_PROC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1276 | { 0 } | |
1277 | }; | |
1278 | static struct procunit_value_info dcr_proc_info[] = { | |
1279 | { USB_PROC_DCR_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1280 | { USB_PROC_DCR_RATIO, "Ratio", USB_MIXER_U16 }, | |
1281 | { USB_PROC_DCR_MAX_AMP, "Max Amp", USB_MIXER_S16 }, | |
1282 | { USB_PROC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1283 | { USB_PROC_DCR_ATTACK, "Attack Time", USB_MIXER_U16 }, | |
1284 | { USB_PROC_DCR_RELEASE, "Release Time", USB_MIXER_U16 }, | |
1285 | { 0 } | |
1286 | }; | |
1287 | ||
1288 | static struct procunit_info procunits[] = { | |
1289 | { USB_PROC_UPDOWN, "Up Down", updown_proc_info }, | |
1290 | { USB_PROC_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1291 | { USB_PROC_3DENH, "3D Stereo Extender", threed_enh_proc_info }, | |
1292 | { USB_PROC_REVERB, "Reverb", reverb_proc_info }, | |
1293 | { USB_PROC_CHORUS, "Chorus", chorus_proc_info }, | |
1294 | { USB_PROC_DCR, "DCR", dcr_proc_info }, | |
1295 | { 0 }, | |
1296 | }; | |
7d2b451e SK |
1297 | /* |
1298 | * predefined data for extension units | |
1299 | */ | |
1300 | static struct procunit_value_info clock_rate_xu_info[] = { | |
1301 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, | |
1302 | { 0 } | |
1303 | }; | |
1304 | static struct procunit_value_info clock_source_xu_info[] = { | |
1305 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1306 | { 0 } | |
1307 | }; | |
1308 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1309 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1310 | { 0 } | |
1311 | }; | |
1312 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1313 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1314 | { 0 } | |
1315 | }; | |
1316 | static struct procunit_info extunits[] = { | |
1317 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1318 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1319 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1320 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1321 | { 0 } | |
1322 | }; | |
1da177e4 LT |
1323 | /* |
1324 | * build a processing/extension unit | |
1325 | */ | |
86e07d34 | 1326 | static int build_audio_procunit(struct mixer_build *state, int unitid, unsigned char *dsc, struct procunit_info *list, char *name) |
1da177e4 LT |
1327 | { |
1328 | int num_ins = dsc[6]; | |
86e07d34 TI |
1329 | struct usb_mixer_elem_info *cval; |
1330 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1331 | int i, err, nameid, type, len; |
1332 | struct procunit_info *info; | |
1333 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1334 | const struct usbmix_name_map *map; |
1da177e4 LT |
1335 | static struct procunit_value_info default_value_info[] = { |
1336 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1337 | { 0 } | |
1338 | }; | |
1339 | static struct procunit_info default_info = { | |
1340 | 0, NULL, default_value_info | |
1341 | }; | |
1342 | ||
1343 | if (dsc[0] < 13 || dsc[0] < 13 + num_ins || dsc[0] < num_ins + dsc[11 + num_ins]) { | |
1344 | snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); | |
1345 | return -EINVAL; | |
1346 | } | |
1347 | ||
1348 | for (i = 0; i < num_ins; i++) { | |
1349 | if ((err = parse_audio_unit(state, dsc[7 + i])) < 0) | |
1350 | return err; | |
1351 | } | |
1352 | ||
1353 | type = combine_word(&dsc[4]); | |
1da177e4 LT |
1354 | for (info = list; info && info->type; info++) |
1355 | if (info->type == type) | |
1356 | break; | |
1357 | if (! info || ! info->type) | |
1358 | info = &default_info; | |
1359 | ||
1360 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
1361 | /* FIXME: bitmap might be longer than 8bit */ | |
1362 | if (! (dsc[12 + num_ins] & (1 << (valinfo->control - 1)))) | |
1363 | continue; | |
c3a3e040 JK |
1364 | map = find_map(state, unitid, valinfo->control); |
1365 | if (check_ignored_ctl(map)) | |
1da177e4 | 1366 | continue; |
561b220a | 1367 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1368 | if (! cval) { |
1369 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1370 | return -ENOMEM; | |
1371 | } | |
84957a8a | 1372 | cval->mixer = state->mixer; |
1da177e4 LT |
1373 | cval->id = unitid; |
1374 | cval->control = valinfo->control; | |
1375 | cval->val_type = valinfo->val_type; | |
1376 | cval->channels = 1; | |
1377 | ||
1378 | /* get min/max values */ | |
1379 | if (type == USB_PROC_UPDOWN && cval->control == USB_PROC_UPDOWN_MODE_SEL) { | |
1380 | /* FIXME: hard-coded */ | |
1381 | cval->min = 1; | |
1382 | cval->max = dsc[15]; | |
1383 | cval->res = 1; | |
1384 | cval->initialized = 1; | |
7d2b451e SK |
1385 | } else { |
1386 | if (type == USB_XU_CLOCK_RATE) { | |
1387 | /* E-Mu USB 0404/0202/TrackerPre | |
1388 | * samplerate control quirk | |
1389 | */ | |
1390 | cval->min = 0; | |
1391 | cval->max = 5; | |
1392 | cval->res = 1; | |
1393 | cval->initialized = 1; | |
1394 | } else | |
1395 | get_min_max(cval, valinfo->min_value); | |
1396 | } | |
1da177e4 LT |
1397 | |
1398 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
1399 | if (! kctl) { | |
1400 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1401 | kfree(cval); | |
1402 | return -ENOMEM; | |
1403 | } | |
1404 | kctl->private_free = usb_mixer_elem_free; | |
1405 | ||
c3a3e040 JK |
1406 | if (check_mapped_name(map, kctl->id.name, |
1407 | sizeof(kctl->id.name))) | |
1408 | /* nothing */ ; | |
1da177e4 LT |
1409 | else if (info->name) |
1410 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); | |
1411 | else { | |
1412 | nameid = dsc[12 + num_ins + dsc[11 + num_ins]]; | |
1413 | len = 0; | |
1414 | if (nameid) | |
1415 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1416 | if (! len) | |
1417 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); | |
1418 | } | |
08d1e635 TI |
1419 | append_ctl_name(kctl, " "); |
1420 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 LT |
1421 | |
1422 | snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", | |
1423 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1424 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1425 | return err; |
1426 | } | |
1427 | return 0; | |
1428 | } | |
1429 | ||
1430 | ||
86e07d34 | 1431 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, unsigned char *desc) |
1da177e4 LT |
1432 | { |
1433 | return build_audio_procunit(state, unitid, desc, procunits, "Processing Unit"); | |
1434 | } | |
1435 | ||
86e07d34 | 1436 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, unsigned char *desc) |
1da177e4 | 1437 | { |
7d2b451e | 1438 | return build_audio_procunit(state, unitid, desc, extunits, "Extension Unit"); |
1da177e4 LT |
1439 | } |
1440 | ||
1441 | ||
1442 | /* | |
1443 | * Selector Unit | |
1444 | */ | |
1445 | ||
1446 | /* info callback for selector unit | |
1447 | * use an enumerator type for routing | |
1448 | */ | |
86e07d34 | 1449 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 1450 | { |
86e07d34 | 1451 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1452 | char **itemlist = (char **)kcontrol->private_value; |
1453 | ||
5e246b85 TI |
1454 | if (snd_BUG_ON(!itemlist)) |
1455 | return -EINVAL; | |
1da177e4 LT |
1456 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
1457 | uinfo->count = 1; | |
1458 | uinfo->value.enumerated.items = cval->max; | |
1459 | if ((int)uinfo->value.enumerated.item >= cval->max) | |
1460 | uinfo->value.enumerated.item = cval->max - 1; | |
1461 | strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]); | |
1462 | return 0; | |
1463 | } | |
1464 | ||
1465 | /* get callback for selector unit */ | |
86e07d34 | 1466 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1467 | { |
86e07d34 | 1468 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1469 | int val, err; |
1470 | ||
1471 | err = get_cur_ctl_value(cval, 0, &val); | |
1472 | if (err < 0) { | |
84957a8a | 1473 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1474 | ucontrol->value.enumerated.item[0] = 0; |
1475 | return 0; | |
1476 | } | |
1477 | return err; | |
1478 | } | |
1479 | val = get_relative_value(cval, val); | |
1480 | ucontrol->value.enumerated.item[0] = val; | |
1481 | return 0; | |
1482 | } | |
1483 | ||
1484 | /* put callback for selector unit */ | |
86e07d34 | 1485 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1486 | { |
86e07d34 | 1487 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1488 | int val, oval, err; |
1489 | ||
1490 | err = get_cur_ctl_value(cval, 0, &oval); | |
1491 | if (err < 0) { | |
84957a8a | 1492 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1493 | return 0; |
1494 | return err; | |
1495 | } | |
1496 | val = ucontrol->value.enumerated.item[0]; | |
1497 | val = get_abs_value(cval, val); | |
1498 | if (val != oval) { | |
1499 | set_cur_ctl_value(cval, 0, val); | |
1500 | return 1; | |
1501 | } | |
1502 | return 0; | |
1503 | } | |
1504 | ||
1505 | /* alsa control interface for selector unit */ | |
86e07d34 | 1506 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
1507 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1508 | .name = "", /* will be filled later */ | |
1509 | .info = mixer_ctl_selector_info, | |
1510 | .get = mixer_ctl_selector_get, | |
1511 | .put = mixer_ctl_selector_put, | |
1512 | }; | |
1513 | ||
1514 | ||
1515 | /* private free callback. | |
1516 | * free both private_data and private_value | |
1517 | */ | |
86e07d34 | 1518 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
1519 | { |
1520 | int i, num_ins = 0; | |
1521 | ||
1522 | if (kctl->private_data) { | |
86e07d34 | 1523 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
1524 | num_ins = cval->max; |
1525 | kfree(cval); | |
1526 | kctl->private_data = NULL; | |
1527 | } | |
1528 | if (kctl->private_value) { | |
1529 | char **itemlist = (char **)kctl->private_value; | |
1530 | for (i = 0; i < num_ins; i++) | |
1531 | kfree(itemlist[i]); | |
1532 | kfree(itemlist); | |
1533 | kctl->private_value = 0; | |
1534 | } | |
1535 | } | |
1536 | ||
1537 | /* | |
1538 | * parse a selector unit | |
1539 | */ | |
86e07d34 | 1540 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, unsigned char *desc) |
1da177e4 LT |
1541 | { |
1542 | unsigned int num_ins = desc[4]; | |
1543 | unsigned int i, nameid, len; | |
1544 | int err; | |
86e07d34 TI |
1545 | struct usb_mixer_elem_info *cval; |
1546 | struct snd_kcontrol *kctl; | |
c3a3e040 | 1547 | const struct usbmix_name_map *map; |
1da177e4 LT |
1548 | char **namelist; |
1549 | ||
38977e96 | 1550 | if (! num_ins || desc[0] < 5 + num_ins) { |
1da177e4 LT |
1551 | snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); |
1552 | return -EINVAL; | |
1553 | } | |
1554 | ||
1555 | for (i = 0; i < num_ins; i++) { | |
1556 | if ((err = parse_audio_unit(state, desc[5 + i])) < 0) | |
1557 | return err; | |
1558 | } | |
1559 | ||
1560 | if (num_ins == 1) /* only one ? nonsense! */ | |
1561 | return 0; | |
1562 | ||
c3a3e040 JK |
1563 | map = find_map(state, unitid, 0); |
1564 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1565 | return 0; |
1566 | ||
561b220a | 1567 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1568 | if (! cval) { |
1569 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1570 | return -ENOMEM; | |
1571 | } | |
84957a8a | 1572 | cval->mixer = state->mixer; |
1da177e4 LT |
1573 | cval->id = unitid; |
1574 | cval->val_type = USB_MIXER_U8; | |
1575 | cval->channels = 1; | |
1576 | cval->min = 1; | |
1577 | cval->max = num_ins; | |
1578 | cval->res = 1; | |
1579 | cval->initialized = 1; | |
1580 | ||
1581 | namelist = kmalloc(sizeof(char *) * num_ins, GFP_KERNEL); | |
1582 | if (! namelist) { | |
1583 | snd_printk(KERN_ERR "cannot malloc\n"); | |
1584 | kfree(cval); | |
1585 | return -ENOMEM; | |
1586 | } | |
1587 | #define MAX_ITEM_NAME_LEN 64 | |
1588 | for (i = 0; i < num_ins; i++) { | |
86e07d34 | 1589 | struct usb_audio_term iterm; |
1da177e4 LT |
1590 | len = 0; |
1591 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
1592 | if (! namelist[i]) { | |
1593 | snd_printk(KERN_ERR "cannot malloc\n"); | |
7fbe3ca5 | 1594 | while (i--) |
1da177e4 LT |
1595 | kfree(namelist[i]); |
1596 | kfree(namelist); | |
1597 | kfree(cval); | |
1598 | return -ENOMEM; | |
1599 | } | |
8e062ec7 CL |
1600 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
1601 | MAX_ITEM_NAME_LEN); | |
1602 | if (! len && check_input_term(state, desc[5 + i], &iterm) >= 0) | |
1da177e4 LT |
1603 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
1604 | if (! len) | |
1605 | sprintf(namelist[i], "Input %d", i); | |
1606 | } | |
1607 | ||
1608 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
1609 | if (! kctl) { | |
1610 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
878b4789 | 1611 | kfree(namelist); |
1da177e4 LT |
1612 | kfree(cval); |
1613 | return -ENOMEM; | |
1614 | } | |
1615 | kctl->private_value = (unsigned long)namelist; | |
1616 | kctl->private_free = usb_mixer_selector_elem_free; | |
1617 | ||
1618 | nameid = desc[desc[0] - 1]; | |
c3a3e040 | 1619 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1620 | if (len) |
1621 | ; | |
1622 | else if (nameid) | |
1623 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1624 | else { | |
1625 | len = get_term_name(state, &state->oterm, | |
1626 | kctl->id.name, sizeof(kctl->id.name), 0); | |
1627 | if (! len) | |
1628 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); | |
1629 | ||
1630 | if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 1631 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 1632 | else |
08d1e635 | 1633 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
1634 | } |
1635 | ||
1636 | snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", | |
1637 | cval->id, kctl->id.name, num_ins); | |
84957a8a | 1638 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1639 | return err; |
1640 | ||
1641 | return 0; | |
1642 | } | |
1643 | ||
1644 | ||
1645 | /* | |
1646 | * parse an audio unit recursively | |
1647 | */ | |
1648 | ||
86e07d34 | 1649 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
1650 | { |
1651 | unsigned char *p1; | |
1652 | ||
1653 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
1654 | return 0; /* the unit already visited */ | |
1655 | ||
1656 | p1 = find_audio_control_unit(state, unitid); | |
1657 | if (!p1) { | |
1658 | snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); | |
1659 | return -EINVAL; | |
1660 | } | |
1661 | ||
1662 | switch (p1[2]) { | |
de48c7bc | 1663 | case UAC_INPUT_TERMINAL: |
1da177e4 | 1664 | return 0; /* NOP */ |
de48c7bc | 1665 | case UAC_MIXER_UNIT: |
1da177e4 | 1666 | return parse_audio_mixer_unit(state, unitid, p1); |
de48c7bc | 1667 | case UAC_SELECTOR_UNIT: |
1da177e4 | 1668 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 1669 | case UAC_FEATURE_UNIT: |
1da177e4 | 1670 | return parse_audio_feature_unit(state, unitid, p1); |
de48c7bc | 1671 | case UAC_PROCESSING_UNIT_V1: |
1da177e4 | 1672 | return parse_audio_processing_unit(state, unitid, p1); |
de48c7bc | 1673 | case UAC_EXTENSION_UNIT_V1: |
1da177e4 LT |
1674 | return parse_audio_extension_unit(state, unitid, p1); |
1675 | default: | |
1676 | snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1677 | return -EINVAL; | |
1678 | } | |
1679 | } | |
1680 | ||
84957a8a CL |
1681 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
1682 | { | |
6639b6c2 CL |
1683 | kfree(mixer->id_elems); |
1684 | if (mixer->urb) { | |
1685 | kfree(mixer->urb->transfer_buffer); | |
1686 | usb_free_urb(mixer->urb); | |
1687 | } | |
68df9de1 | 1688 | usb_free_urb(mixer->rc_urb); |
b259b10c | 1689 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
1690 | kfree(mixer); |
1691 | } | |
1692 | ||
86e07d34 | 1693 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
1694 | { |
1695 | struct usb_mixer_interface *mixer = device->device_data; | |
1696 | snd_usb_mixer_free(mixer); | |
1697 | return 0; | |
1698 | } | |
1699 | ||
1da177e4 LT |
1700 | /* |
1701 | * create mixer controls | |
1702 | * | |
de48c7bc | 1703 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 1704 | */ |
84957a8a | 1705 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 1706 | { |
28e1b773 | 1707 | struct uac_output_terminal_descriptor_v1 *desc; |
86e07d34 | 1708 | struct mixer_build state; |
1da177e4 LT |
1709 | int err; |
1710 | const struct usbmix_ctl_map *map; | |
84957a8a | 1711 | struct usb_host_interface *hostif; |
1da177e4 | 1712 | |
84957a8a | 1713 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; |
1da177e4 | 1714 | memset(&state, 0, sizeof(state)); |
84957a8a CL |
1715 | state.chip = mixer->chip; |
1716 | state.mixer = mixer; | |
1da177e4 LT |
1717 | state.buffer = hostif->extra; |
1718 | state.buflen = hostif->extralen; | |
1da177e4 LT |
1719 | |
1720 | /* check the mapping table */ | |
27d10f56 CL |
1721 | for (map = usbmix_ctl_maps; map->id; map++) { |
1722 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 1723 | state.map = map->map; |
8e062ec7 | 1724 | state.selector_map = map->selector_map; |
84957a8a | 1725 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
1726 | break; |
1727 | } | |
1728 | } | |
1da177e4 LT |
1729 | |
1730 | desc = NULL; | |
de48c7bc | 1731 | while ((desc = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, desc, UAC_OUTPUT_TERMINAL)) != NULL) { |
28e1b773 | 1732 | if (desc->bLength < 9) |
1da177e4 | 1733 | continue; /* invalid descriptor? */ |
28e1b773 DM |
1734 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ |
1735 | state.oterm.id = desc->bTerminalID; | |
1736 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1737 | state.oterm.name = desc->iTerminal; | |
1738 | err = parse_audio_unit(&state, desc->bSourceID); | |
1da177e4 LT |
1739 | if (err < 0) |
1740 | return err; | |
1741 | } | |
1742 | return 0; | |
1743 | } | |
84957a8a | 1744 | |
7b1eda22 | 1745 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 1746 | { |
86e07d34 | 1747 | struct usb_mixer_elem_info *info; |
6639b6c2 CL |
1748 | |
1749 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) | |
1750 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
1751 | info->elem_id); | |
1752 | } | |
1753 | ||
ebfdeea3 JK |
1754 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
1755 | int unitid, | |
1756 | struct usb_mixer_elem_info *cval) | |
1757 | { | |
1758 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", | |
1759 | "S8", "U8", "S16", "U16"}; | |
1760 | snd_iprintf(buffer, " Unit: %i\n", unitid); | |
1761 | if (cval->elem_id) | |
1762 | snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", | |
1763 | cval->elem_id->name, cval->elem_id->index); | |
1764 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " | |
1765 | "channels=%i, type=\"%s\"\n", cval->id, | |
1766 | cval->control, cval->cmask, cval->channels, | |
1767 | val_types[cval->val_type]); | |
1768 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
1769 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
1770 | } | |
1771 | ||
1772 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
1773 | struct snd_info_buffer *buffer) | |
1774 | { | |
1775 | struct snd_usb_audio *chip = entry->private_data; | |
1776 | struct usb_mixer_interface *mixer; | |
1777 | struct usb_mixer_elem_info *cval; | |
1778 | int unitid; | |
1779 | ||
1780 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
1781 | snd_iprintf(buffer, | |
7affdc17 JK |
1782 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
1783 | chip->usb_id, mixer->ctrlif, | |
1784 | mixer->ignore_ctl_error); | |
ebfdeea3 JK |
1785 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
1786 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
1787 | for (cval = mixer->id_elems[unitid]; cval; | |
1788 | cval = cval->next_id_elem) | |
1789 | snd_usb_mixer_dump_cval(buffer, unitid, cval); | |
1790 | } | |
1791 | } | |
1792 | } | |
1793 | ||
7d12e780 | 1794 | static void snd_usb_mixer_status_complete(struct urb *urb) |
6639b6c2 CL |
1795 | { |
1796 | struct usb_mixer_interface *mixer = urb->context; | |
1797 | ||
1798 | if (urb->status == 0) { | |
1799 | u8 *buf = urb->transfer_buffer; | |
1800 | int i; | |
1801 | ||
1802 | for (i = urb->actual_length; i >= 2; buf += 2, i -= 2) { | |
1803 | snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", | |
1804 | buf[0], buf[1]); | |
1805 | /* ignore any notifications not from the control interface */ | |
1806 | if ((buf[0] & 0x0f) != 0) | |
1807 | continue; | |
1808 | if (!(buf[0] & 0x40)) | |
1809 | snd_usb_mixer_notify_id(mixer, buf[1]); | |
b259b10c | 1810 | else |
7b1eda22 | 1811 | snd_usb_mixer_rc_memory_change(mixer, buf[1]); |
6639b6c2 CL |
1812 | } |
1813 | } | |
1814 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) { | |
1815 | urb->dev = mixer->chip->dev; | |
1816 | usb_submit_urb(urb, GFP_ATOMIC); | |
1817 | } | |
1818 | } | |
1819 | ||
1820 | /* create the handler for the optional status interrupt endpoint */ | |
1821 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
1822 | { | |
1823 | struct usb_host_interface *hostif; | |
1824 | struct usb_endpoint_descriptor *ep; | |
1825 | void *transfer_buffer; | |
1826 | int buffer_length; | |
1827 | unsigned int epnum; | |
1828 | ||
1829 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; | |
1830 | /* we need one interrupt input endpoint */ | |
1831 | if (get_iface_desc(hostif)->bNumEndpoints < 1) | |
1832 | return 0; | |
1833 | ep = get_endpoint(hostif, 0); | |
913ae5a2 | 1834 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
1835 | return 0; |
1836 | ||
42a6e66f | 1837 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
1838 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
1839 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
1840 | if (!transfer_buffer) | |
1841 | return -ENOMEM; | |
1842 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
1843 | if (!mixer->urb) { | |
1844 | kfree(transfer_buffer); | |
1845 | return -ENOMEM; | |
1846 | } | |
1847 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
1848 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
1849 | transfer_buffer, buffer_length, | |
1850 | snd_usb_mixer_status_complete, mixer, ep->bInterval); | |
1851 | usb_submit_urb(mixer->urb, GFP_KERNEL); | |
1852 | return 0; | |
1853 | } | |
1854 | ||
7a9b8063 TI |
1855 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
1856 | int ignore_error) | |
84957a8a | 1857 | { |
86e07d34 | 1858 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
1859 | .dev_free = snd_usb_mixer_dev_free |
1860 | }; | |
1861 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 1862 | struct snd_info_entry *entry; |
7b8a043f DM |
1863 | struct usb_host_interface *host_iface; |
1864 | int err, protocol; | |
84957a8a CL |
1865 | |
1866 | strcpy(chip->card->mixername, "USB Mixer"); | |
1867 | ||
561b220a | 1868 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
1869 | if (!mixer) |
1870 | return -ENOMEM; | |
1871 | mixer->chip = chip; | |
1872 | mixer->ctrlif = ctrlif; | |
7a9b8063 | 1873 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
1874 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
1875 | GFP_KERNEL); | |
6639b6c2 CL |
1876 | if (!mixer->id_elems) { |
1877 | kfree(mixer); | |
1878 | return -ENOMEM; | |
1879 | } | |
84957a8a | 1880 | |
7b8a043f DM |
1881 | host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
1882 | protocol = host_iface->desc.bInterfaceProtocol; | |
1883 | ||
1884 | /* FIXME! */ | |
1885 | if (protocol != UAC_VERSION_1) { | |
1886 | snd_printk(KERN_WARNING "mixer interface protocol 0x%02x not yet supported\n", | |
1887 | protocol); | |
1888 | return 0; | |
1889 | } | |
1890 | ||
6639b6c2 | 1891 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
1892 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
1893 | goto _error; | |
84957a8a | 1894 | |
7b1eda22 | 1895 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 1896 | |
84957a8a | 1897 | err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); |
93446edc CL |
1898 | if (err < 0) |
1899 | goto _error; | |
ebfdeea3 JK |
1900 | |
1901 | if (list_empty(&chip->mixer_list) && | |
1902 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
1903 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
1904 | ||
84957a8a CL |
1905 | list_add(&mixer->list, &chip->mixer_list); |
1906 | return 0; | |
93446edc CL |
1907 | |
1908 | _error: | |
1909 | snd_usb_mixer_free(mixer); | |
1910 | return err; | |
84957a8a CL |
1911 | } |
1912 | ||
1913 | void snd_usb_mixer_disconnect(struct list_head *p) | |
1914 | { | |
6639b6c2 | 1915 | struct usb_mixer_interface *mixer; |
7b1eda22 | 1916 | |
6639b6c2 | 1917 | mixer = list_entry(p, struct usb_mixer_interface, list); |
68df9de1 MK |
1918 | usb_kill_urb(mixer->urb); |
1919 | usb_kill_urb(mixer->rc_urb); | |
84957a8a | 1920 | } |