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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 | ||
1da177e4 | 81 | |
7d2b451e SK |
82 | /*E-mu 0202(0404) eXtension Unit(XU) control*/ |
83 | enum { | |
84 | USB_XU_CLOCK_RATE = 0xe301, | |
85 | USB_XU_CLOCK_SOURCE = 0xe302, | |
86 | USB_XU_DIGITAL_IO_STATUS = 0xe303, | |
87 | USB_XU_DEVICE_OPTIONS = 0xe304, | |
88 | USB_XU_DIRECT_MONITORING = 0xe305, | |
89 | USB_XU_METERING = 0xe306 | |
90 | }; | |
91 | enum { | |
92 | USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ | |
93 | USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ | |
94 | USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ | |
95 | USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ | |
96 | }; | |
1da177e4 LT |
97 | |
98 | /* | |
99 | * manual mapping of mixer names | |
100 | * if the mixer topology is too complicated and the parsed names are | |
101 | * ambiguous, add the entries in usbmixer_maps.c. | |
102 | */ | |
f0b5e634 | 103 | #include "mixer_maps.c" |
1da177e4 | 104 | |
c3a3e040 JK |
105 | static const struct usbmix_name_map * |
106 | find_map(struct mixer_build *state, int unitid, int control) | |
1da177e4 | 107 | { |
c3a3e040 | 108 | const struct usbmix_name_map *p = state->map; |
1da177e4 | 109 | |
c3a3e040 JK |
110 | if (!p) |
111 | return NULL; | |
1da177e4 LT |
112 | |
113 | for (p = state->map; p->id; p++) { | |
c3a3e040 JK |
114 | if (p->id == unitid && |
115 | (!control || !p->control || control == p->control)) | |
116 | return p; | |
1da177e4 | 117 | } |
c3a3e040 | 118 | return NULL; |
1da177e4 LT |
119 | } |
120 | ||
c3a3e040 JK |
121 | /* get the mapped name if the unit matches */ |
122 | static int | |
123 | check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) | |
1da177e4 | 124 | { |
c3a3e040 JK |
125 | if (!p || !p->name) |
126 | return 0; | |
1da177e4 | 127 | |
c3a3e040 JK |
128 | buflen--; |
129 | return strlcpy(buf, p->name, buflen); | |
130 | } | |
131 | ||
132 | /* check whether the control should be ignored */ | |
133 | static inline int | |
134 | check_ignored_ctl(const struct usbmix_name_map *p) | |
135 | { | |
136 | if (!p || p->name || p->dB) | |
1da177e4 | 137 | return 0; |
c3a3e040 JK |
138 | return 1; |
139 | } | |
140 | ||
141 | /* dB mapping */ | |
142 | static inline void check_mapped_dB(const struct usbmix_name_map *p, | |
143 | struct usb_mixer_elem_info *cval) | |
144 | { | |
145 | if (p && p->dB) { | |
146 | cval->dBmin = p->dB->min; | |
147 | cval->dBmax = p->dB->max; | |
1da177e4 | 148 | } |
1da177e4 LT |
149 | } |
150 | ||
8e062ec7 | 151 | /* get the mapped selector source name */ |
86e07d34 | 152 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
153 | int index, char *buf, int buflen) |
154 | { | |
155 | const struct usbmix_selector_map *p; | |
156 | ||
157 | if (! state->selector_map) | |
158 | return 0; | |
159 | for (p = state->selector_map; p->id; p++) { | |
160 | if (p->id == unitid && index < p->count) | |
161 | return strlcpy(buf, p->names[index], buflen); | |
162 | } | |
163 | return 0; | |
164 | } | |
165 | ||
1da177e4 LT |
166 | /* |
167 | * find an audio control unit with the given unit id | |
168 | */ | |
86e07d34 | 169 | static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) |
1da177e4 | 170 | { |
67e1daa0 DM |
171 | /* we just parse the header */ |
172 | struct uac_feature_unit_descriptor *hdr = NULL; | |
173 | ||
174 | while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, | |
175 | USB_DT_CS_INTERFACE)) != NULL) { | |
176 | if (hdr->bLength >= 4 && | |
177 | hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && | |
178 | hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && | |
179 | hdr->bUnitID == unit) | |
180 | return hdr; | |
1da177e4 | 181 | } |
67e1daa0 | 182 | |
1da177e4 LT |
183 | return NULL; |
184 | } | |
185 | ||
1da177e4 LT |
186 | /* |
187 | * copy a string with the given id | |
188 | */ | |
86e07d34 | 189 | static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) |
1da177e4 LT |
190 | { |
191 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
192 | buf[len] = 0; | |
193 | return len; | |
194 | } | |
195 | ||
196 | /* | |
197 | * convert from the byte/word on usb descriptor to the zero-based integer | |
198 | */ | |
86e07d34 | 199 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
200 | { |
201 | switch (cval->val_type) { | |
202 | case USB_MIXER_BOOLEAN: | |
203 | return !!val; | |
204 | case USB_MIXER_INV_BOOLEAN: | |
205 | return !val; | |
206 | case USB_MIXER_U8: | |
207 | val &= 0xff; | |
208 | break; | |
209 | case USB_MIXER_S8: | |
210 | val &= 0xff; | |
211 | if (val >= 0x80) | |
212 | val -= 0x100; | |
213 | break; | |
214 | case USB_MIXER_U16: | |
215 | val &= 0xffff; | |
216 | break; | |
217 | case USB_MIXER_S16: | |
218 | val &= 0xffff; | |
219 | if (val >= 0x8000) | |
220 | val -= 0x10000; | |
221 | break; | |
222 | } | |
223 | return val; | |
224 | } | |
225 | ||
226 | /* | |
227 | * convert from the zero-based int to the byte/word for usb descriptor | |
228 | */ | |
86e07d34 | 229 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
230 | { |
231 | switch (cval->val_type) { | |
232 | case USB_MIXER_BOOLEAN: | |
233 | return !!val; | |
234 | case USB_MIXER_INV_BOOLEAN: | |
235 | return !val; | |
236 | case USB_MIXER_S8: | |
237 | case USB_MIXER_U8: | |
238 | return val & 0xff; | |
239 | case USB_MIXER_S16: | |
240 | case USB_MIXER_U16: | |
241 | return val & 0xffff; | |
242 | } | |
243 | return 0; /* not reached */ | |
244 | } | |
245 | ||
86e07d34 | 246 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
247 | { |
248 | if (! cval->res) | |
249 | cval->res = 1; | |
250 | if (val < cval->min) | |
251 | return 0; | |
14790f1c TI |
252 | else if (val >= cval->max) |
253 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
254 | else |
255 | return (val - cval->min) / cval->res; | |
256 | } | |
257 | ||
86e07d34 | 258 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
259 | { |
260 | if (val < 0) | |
261 | return cval->min; | |
262 | if (! cval->res) | |
263 | cval->res = 1; | |
264 | val *= cval->res; | |
265 | val += cval->min; | |
266 | if (val > cval->max) | |
267 | return cval->max; | |
268 | return val; | |
269 | } | |
270 | ||
271 | ||
272 | /* | |
273 | * retrieve a mixer value | |
274 | */ | |
275 | ||
23caaf19 | 276 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
1da177e4 LT |
277 | { |
278 | unsigned char buf[2]; | |
279 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
280 | int timeout = 10; | |
281 | ||
282 | while (timeout-- > 0) { | |
84957a8a CL |
283 | if (snd_usb_ctl_msg(cval->mixer->chip->dev, |
284 | usb_rcvctrlpipe(cval->mixer->chip->dev, 0), | |
1da177e4 LT |
285 | request, |
286 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
84957a8a | 287 | validx, cval->mixer->ctrlif | (cval->id << 8), |
a04395ea | 288 | buf, val_len, 100) >= val_len) { |
1da177e4 LT |
289 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
290 | return 0; | |
291 | } | |
292 | } | |
84957a8a CL |
293 | snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
294 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); | |
1da177e4 LT |
295 | return -EINVAL; |
296 | } | |
297 | ||
23caaf19 DM |
298 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
299 | { | |
e8bdb6bb | 300 | unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ |
23caaf19 | 301 | unsigned char *val; |
e8bdb6bb | 302 | int ret, size; |
23caaf19 DM |
303 | __u8 bRequest; |
304 | ||
e8bdb6bb DM |
305 | if (request == UAC_GET_CUR) { |
306 | bRequest = UAC2_CS_CUR; | |
307 | size = sizeof(__u16); | |
308 | } else { | |
309 | bRequest = UAC2_CS_RANGE; | |
310 | size = sizeof(buf); | |
311 | } | |
312 | ||
313 | memset(buf, 0, sizeof(buf)); | |
23caaf19 DM |
314 | |
315 | ret = snd_usb_ctl_msg(cval->mixer->chip->dev, | |
316 | usb_rcvctrlpipe(cval->mixer->chip->dev, 0), | |
317 | bRequest, | |
318 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
319 | validx, cval->mixer->ctrlif | (cval->id << 8), | |
e8bdb6bb | 320 | buf, size, 1000); |
23caaf19 DM |
321 | |
322 | if (ret < 0) { | |
09414207 DM |
323 | snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
324 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); | |
23caaf19 DM |
325 | return ret; |
326 | } | |
327 | ||
e8bdb6bb DM |
328 | /* FIXME: how should we handle multiple triplets here? */ |
329 | ||
23caaf19 DM |
330 | switch (request) { |
331 | case UAC_GET_CUR: | |
332 | val = buf; | |
333 | break; | |
334 | case UAC_GET_MIN: | |
335 | val = buf + sizeof(__u16); | |
336 | break; | |
337 | case UAC_GET_MAX: | |
338 | val = buf + sizeof(__u16) * 2; | |
339 | break; | |
340 | case UAC_GET_RES: | |
341 | val = buf + sizeof(__u16) * 3; | |
342 | break; | |
343 | default: | |
344 | return -EINVAL; | |
345 | } | |
346 | ||
347 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); | |
348 | ||
349 | return 0; | |
350 | } | |
351 | ||
352 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) | |
353 | { | |
354 | return (cval->mixer->protocol == UAC_VERSION_1) ? | |
355 | get_ctl_value_v1(cval, request, validx, value_ret) : | |
356 | get_ctl_value_v2(cval, request, validx, value_ret); | |
357 | } | |
358 | ||
86e07d34 | 359 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) |
1da177e4 | 360 | { |
de48c7bc | 361 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
362 | } |
363 | ||
364 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
365 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
366 | int channel, int *value) | |
1da177e4 | 367 | { |
de48c7bc | 368 | return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); |
1da177e4 LT |
369 | } |
370 | ||
641b4879 TI |
371 | static int get_cur_mix_value(struct usb_mixer_elem_info *cval, |
372 | int channel, int index, int *value) | |
373 | { | |
374 | int err; | |
375 | ||
376 | if (cval->cached & (1 << channel)) { | |
377 | *value = cval->cache_val[index]; | |
378 | return 0; | |
379 | } | |
380 | err = get_cur_mix_raw(cval, channel, value); | |
381 | if (err < 0) { | |
382 | if (!cval->mixer->ignore_ctl_error) | |
23caaf19 | 383 | snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", |
641b4879 TI |
384 | cval->control, channel, err); |
385 | return err; | |
386 | } | |
387 | cval->cached |= 1 << channel; | |
388 | cval->cache_val[index] = *value; | |
389 | return 0; | |
390 | } | |
391 | ||
392 | ||
1da177e4 LT |
393 | /* |
394 | * set a mixer value | |
395 | */ | |
396 | ||
7b1eda22 DM |
397 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
398 | int request, int validx, int value_set) | |
1da177e4 LT |
399 | { |
400 | unsigned char buf[2]; | |
23caaf19 DM |
401 | int val_len, timeout = 10; |
402 | ||
403 | if (cval->mixer->protocol == UAC_VERSION_1) { | |
404 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
405 | } else { /* UAC_VERSION_2 */ | |
406 | /* audio class v2 controls are always 2 bytes in size */ | |
407 | val_len = sizeof(__u16); | |
408 | ||
409 | /* FIXME */ | |
410 | if (request != UAC_SET_CUR) { | |
411 | snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); | |
412 | return -EINVAL; | |
413 | } | |
414 | ||
415 | request = UAC2_CS_CUR; | |
416 | } | |
1da177e4 LT |
417 | |
418 | value_set = convert_bytes_value(cval, value_set); | |
419 | buf[0] = value_set & 0xff; | |
420 | buf[1] = (value_set >> 8) & 0xff; | |
cf3f9130 | 421 | while (timeout-- > 0) |
84957a8a CL |
422 | if (snd_usb_ctl_msg(cval->mixer->chip->dev, |
423 | usb_sndctrlpipe(cval->mixer->chip->dev, 0), | |
1da177e4 LT |
424 | request, |
425 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | |
84957a8a | 426 | validx, cval->mixer->ctrlif | (cval->id << 8), |
1da177e4 LT |
427 | buf, val_len, 100) >= 0) |
428 | return 0; | |
84957a8a CL |
429 | snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
430 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type, buf[0], buf[1]); | |
1da177e4 LT |
431 | return -EINVAL; |
432 | } | |
433 | ||
86e07d34 | 434 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) |
1da177e4 | 435 | { |
7b1eda22 | 436 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
437 | } |
438 | ||
641b4879 TI |
439 | static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
440 | int index, int value) | |
1da177e4 | 441 | { |
641b4879 | 442 | int err; |
a6a33259 DM |
443 | unsigned int read_only = (channel == 0) ? |
444 | cval->master_readonly : | |
445 | cval->ch_readonly & (1 << (channel - 1)); | |
446 | ||
447 | if (read_only) { | |
448 | snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", | |
449 | __func__, channel, cval->control); | |
450 | return 0; | |
451 | } | |
452 | ||
7b1eda22 | 453 | err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, |
641b4879 TI |
454 | value); |
455 | if (err < 0) | |
456 | return err; | |
457 | cval->cached |= 1 << channel; | |
458 | cval->cache_val[index] = value; | |
459 | return 0; | |
1da177e4 LT |
460 | } |
461 | ||
7bc5ba7e TI |
462 | /* |
463 | * TLV callback for mixer volume controls | |
464 | */ | |
465 | static int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, | |
466 | unsigned int size, unsigned int __user *_tlv) | |
467 | { | |
468 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 469 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
470 | |
471 | if (size < sizeof(scale)) | |
472 | return -ENOMEM; | |
c3a3e040 JK |
473 | scale[2] = cval->dBmin; |
474 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
475 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
476 | return -EFAULT; | |
477 | return 0; | |
478 | } | |
1da177e4 LT |
479 | |
480 | /* | |
481 | * parser routines begin here... | |
482 | */ | |
483 | ||
86e07d34 | 484 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
485 | |
486 | ||
487 | /* | |
488 | * check if the input/output channel routing is enabled on the given bitmap. | |
489 | * used for mixer unit parser | |
490 | */ | |
491 | static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) | |
492 | { | |
493 | int idx = ich * num_outs + och; | |
494 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
495 | } | |
496 | ||
497 | ||
498 | /* | |
499 | * add an alsa control element | |
500 | * search and increment the index until an empty slot is found. | |
501 | * | |
502 | * if failed, give up and free the control instance. | |
503 | */ | |
504 | ||
86e07d34 | 505 | static int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl) |
1da177e4 | 506 | { |
86e07d34 | 507 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 508 | int err; |
84957a8a CL |
509 | |
510 | while (snd_ctl_find_id(state->chip->card, &kctl->id)) | |
1da177e4 | 511 | kctl->id.index++; |
84957a8a | 512 | if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) { |
1da177e4 | 513 | snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); |
6639b6c2 | 514 | return err; |
1da177e4 | 515 | } |
6639b6c2 CL |
516 | cval->elem_id = &kctl->id; |
517 | cval->next_id_elem = state->mixer->id_elems[cval->id]; | |
518 | state->mixer->id_elems[cval->id] = cval; | |
519 | return 0; | |
1da177e4 LT |
520 | } |
521 | ||
522 | ||
523 | /* | |
524 | * get a terminal name string | |
525 | */ | |
526 | ||
527 | static struct iterm_name_combo { | |
528 | int type; | |
529 | char *name; | |
530 | } iterm_names[] = { | |
531 | { 0x0300, "Output" }, | |
532 | { 0x0301, "Speaker" }, | |
533 | { 0x0302, "Headphone" }, | |
534 | { 0x0303, "HMD Audio" }, | |
535 | { 0x0304, "Desktop Speaker" }, | |
536 | { 0x0305, "Room Speaker" }, | |
537 | { 0x0306, "Com Speaker" }, | |
538 | { 0x0307, "LFE" }, | |
539 | { 0x0600, "External In" }, | |
540 | { 0x0601, "Analog In" }, | |
541 | { 0x0602, "Digital In" }, | |
542 | { 0x0603, "Line" }, | |
543 | { 0x0604, "Legacy In" }, | |
544 | { 0x0605, "IEC958 In" }, | |
545 | { 0x0606, "1394 DA Stream" }, | |
546 | { 0x0607, "1394 DV Stream" }, | |
547 | { 0x0700, "Embedded" }, | |
548 | { 0x0701, "Noise Source" }, | |
549 | { 0x0702, "Equalization Noise" }, | |
550 | { 0x0703, "CD" }, | |
551 | { 0x0704, "DAT" }, | |
552 | { 0x0705, "DCC" }, | |
553 | { 0x0706, "MiniDisk" }, | |
554 | { 0x0707, "Analog Tape" }, | |
555 | { 0x0708, "Phonograph" }, | |
556 | { 0x0709, "VCR Audio" }, | |
557 | { 0x070a, "Video Disk Audio" }, | |
558 | { 0x070b, "DVD Audio" }, | |
559 | { 0x070c, "TV Tuner Audio" }, | |
560 | { 0x070d, "Satellite Rec Audio" }, | |
561 | { 0x070e, "Cable Tuner Audio" }, | |
562 | { 0x070f, "DSS Audio" }, | |
563 | { 0x0710, "Radio Receiver" }, | |
564 | { 0x0711, "Radio Transmitter" }, | |
565 | { 0x0712, "Multi-Track Recorder" }, | |
566 | { 0x0713, "Synthesizer" }, | |
567 | { 0 }, | |
568 | }; | |
569 | ||
86e07d34 | 570 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
571 | unsigned char *name, int maxlen, int term_only) |
572 | { | |
573 | struct iterm_name_combo *names; | |
574 | ||
575 | if (iterm->name) | |
576 | return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); | |
577 | ||
578 | /* virtual type - not a real terminal */ | |
579 | if (iterm->type >> 16) { | |
580 | if (term_only) | |
581 | return 0; | |
582 | switch (iterm->type >> 16) { | |
de48c7bc | 583 | case UAC_SELECTOR_UNIT: |
1da177e4 | 584 | strcpy(name, "Selector"); return 8; |
de48c7bc | 585 | case UAC_PROCESSING_UNIT_V1: |
1da177e4 | 586 | strcpy(name, "Process Unit"); return 12; |
de48c7bc | 587 | case UAC_EXTENSION_UNIT_V1: |
1da177e4 | 588 | strcpy(name, "Ext Unit"); return 8; |
de48c7bc | 589 | case UAC_MIXER_UNIT: |
1da177e4 LT |
590 | strcpy(name, "Mixer"); return 5; |
591 | default: | |
592 | return sprintf(name, "Unit %d", iterm->id); | |
593 | } | |
594 | } | |
595 | ||
596 | switch (iterm->type & 0xff00) { | |
597 | case 0x0100: | |
598 | strcpy(name, "PCM"); return 3; | |
599 | case 0x0200: | |
600 | strcpy(name, "Mic"); return 3; | |
601 | case 0x0400: | |
602 | strcpy(name, "Headset"); return 7; | |
603 | case 0x0500: | |
604 | strcpy(name, "Phone"); return 5; | |
605 | } | |
606 | ||
607 | for (names = iterm_names; names->type; names++) | |
608 | if (names->type == iterm->type) { | |
609 | strcpy(name, names->name); | |
610 | return strlen(names->name); | |
611 | } | |
612 | return 0; | |
613 | } | |
614 | ||
615 | ||
616 | /* | |
617 | * parse the source unit recursively until it reaches to a terminal | |
618 | * or a branched unit. | |
619 | */ | |
86e07d34 | 620 | static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) |
1da177e4 | 621 | { |
09414207 | 622 | int err; |
23caaf19 | 623 | void *p1; |
1da177e4 LT |
624 | |
625 | memset(term, 0, sizeof(*term)); | |
626 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 627 | unsigned char *hdr = p1; |
1da177e4 | 628 | term->id = id; |
23caaf19 | 629 | switch (hdr[2]) { |
de48c7bc | 630 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
631 | if (state->mixer->protocol == UAC_VERSION_1) { |
632 | struct uac_input_terminal_descriptor *d = p1; | |
633 | term->type = le16_to_cpu(d->wTerminalType); | |
634 | term->channels = d->bNrChannels; | |
635 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
636 | term->name = d->iTerminal; | |
637 | } else { /* UAC_VERSION_2 */ | |
638 | struct uac2_input_terminal_descriptor *d = p1; | |
639 | term->type = le16_to_cpu(d->wTerminalType); | |
640 | term->channels = d->bNrChannels; | |
641 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
642 | term->name = d->iTerminal; | |
09414207 DM |
643 | |
644 | /* call recursively to get the clock selectors */ | |
645 | err = check_input_term(state, d->bCSourceID, term); | |
646 | if (err < 0) | |
647 | return err; | |
23caaf19 | 648 | } |
1da177e4 | 649 | return 0; |
23caaf19 DM |
650 | case UAC_FEATURE_UNIT: { |
651 | /* the header is the same for v1 and v2 */ | |
652 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 653 | id = d->bSourceID; |
1da177e4 | 654 | break; /* continue to parse */ |
23caaf19 DM |
655 | } |
656 | case UAC_MIXER_UNIT: { | |
657 | struct uac_mixer_unit_descriptor *d = p1; | |
658 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
659 | term->channels = uac_mixer_unit_bNrChannels(d); | |
660 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
661 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 662 | return 0; |
23caaf19 | 663 | } |
09414207 DM |
664 | case UAC_SELECTOR_UNIT: |
665 | case UAC2_CLOCK_SELECTOR: { | |
23caaf19 | 666 | struct uac_selector_unit_descriptor *d = p1; |
1da177e4 | 667 | /* call recursively to retrieve the channel info */ |
23caaf19 | 668 | if (check_input_term(state, d->baSourceID[0], term) < 0) |
1da177e4 | 669 | return -ENODEV; |
23caaf19 | 670 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 671 | term->id = id; |
23caaf19 | 672 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 673 | return 0; |
23caaf19 | 674 | } |
de48c7bc | 675 | case UAC_PROCESSING_UNIT_V1: |
23caaf19 DM |
676 | case UAC_EXTENSION_UNIT_V1: { |
677 | struct uac_processing_unit_descriptor *d = p1; | |
678 | if (d->bNrInPins) { | |
679 | id = d->baSourceID[0]; | |
1da177e4 LT |
680 | break; /* continue to parse */ |
681 | } | |
23caaf19 DM |
682 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
683 | term->channels = uac_processing_unit_bNrChannels(d); | |
684 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
685 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 686 | return 0; |
23caaf19 | 687 | } |
09414207 DM |
688 | case UAC2_CLOCK_SOURCE: { |
689 | struct uac_clock_source_descriptor *d = p1; | |
690 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
691 | term->id = id; | |
692 | term->name = d->iClockSource; | |
693 | return 0; | |
694 | } | |
1da177e4 LT |
695 | default: |
696 | return -ENODEV; | |
697 | } | |
698 | } | |
699 | return -ENODEV; | |
700 | } | |
701 | ||
702 | ||
703 | /* | |
704 | * Feature Unit | |
705 | */ | |
706 | ||
707 | /* feature unit control information */ | |
708 | struct usb_feature_control_info { | |
709 | const char *name; | |
710 | unsigned int type; /* control type (mute, volume, etc.) */ | |
711 | }; | |
712 | ||
713 | static struct usb_feature_control_info audio_feature_info[] = { | |
2e0281d1 DM |
714 | { "Mute", USB_MIXER_INV_BOOLEAN }, |
715 | { "Volume", USB_MIXER_S16 }, | |
1da177e4 LT |
716 | { "Tone Control - Bass", USB_MIXER_S8 }, |
717 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
718 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
719 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
2e0281d1 DM |
720 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, |
721 | { "Delay Control", USB_MIXER_U16 }, | |
722 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
723 | { "Loudness", USB_MIXER_BOOLEAN }, | |
724 | /* UAC2 specific */ | |
725 | { "Input Gain Control", USB_MIXER_U16 }, | |
726 | { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, | |
727 | { "Phase Inverter Control", USB_MIXER_BOOLEAN }, | |
1da177e4 LT |
728 | }; |
729 | ||
730 | ||
731 | /* private_free callback */ | |
86e07d34 | 732 | static void usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 733 | { |
4d572776 JJ |
734 | kfree(kctl->private_data); |
735 | kctl->private_data = NULL; | |
1da177e4 LT |
736 | } |
737 | ||
738 | ||
739 | /* | |
740 | * interface to ALSA control for feature/mixer units | |
741 | */ | |
742 | ||
743 | /* | |
744 | * retrieve the minimum and maximum values for the specified control | |
745 | */ | |
86e07d34 | 746 | static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) |
1da177e4 LT |
747 | { |
748 | /* for failsafe */ | |
749 | cval->min = default_min; | |
750 | cval->max = cval->min + 1; | |
751 | cval->res = 1; | |
c3a3e040 | 752 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
753 | |
754 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
755 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
756 | cval->initialized = 1; | |
757 | } else { | |
758 | int minchn = 0; | |
759 | if (cval->cmask) { | |
760 | int i; | |
761 | for (i = 0; i < MAX_CHANNELS; i++) | |
762 | if (cval->cmask & (1 << i)) { | |
763 | minchn = i + 1; | |
764 | break; | |
765 | } | |
766 | } | |
de48c7bc DM |
767 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
768 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
84957a8a CL |
769 | snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", |
770 | cval->id, cval->mixer->ctrlif, cval->control, cval->id); | |
1da177e4 LT |
771 | return -EINVAL; |
772 | } | |
de48c7bc | 773 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { |
1da177e4 LT |
774 | cval->res = 1; |
775 | } else { | |
776 | int last_valid_res = cval->res; | |
777 | ||
778 | while (cval->res > 1) { | |
7b1eda22 DM |
779 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
780 | (cval->control << 8) | minchn, cval->res / 2) < 0) | |
1da177e4 LT |
781 | break; |
782 | cval->res /= 2; | |
783 | } | |
de48c7bc | 784 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) |
1da177e4 LT |
785 | cval->res = last_valid_res; |
786 | } | |
787 | if (cval->res == 0) | |
788 | cval->res = 1; | |
14790f1c TI |
789 | |
790 | /* Additional checks for the proper resolution | |
791 | * | |
792 | * Some devices report smaller resolutions than actually | |
793 | * reacting. They don't return errors but simply clip | |
794 | * to the lower aligned value. | |
795 | */ | |
796 | if (cval->min + cval->res < cval->max) { | |
797 | int last_valid_res = cval->res; | |
798 | int saved, test, check; | |
641b4879 | 799 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
800 | for (;;) { |
801 | test = saved; | |
802 | if (test < cval->max) | |
803 | test += cval->res; | |
804 | else | |
805 | test -= cval->res; | |
806 | if (test < cval->min || test > cval->max || | |
641b4879 TI |
807 | set_cur_mix_value(cval, minchn, 0, test) || |
808 | get_cur_mix_raw(cval, minchn, &check)) { | |
14790f1c TI |
809 | cval->res = last_valid_res; |
810 | break; | |
811 | } | |
812 | if (test == check) | |
813 | break; | |
814 | cval->res *= 2; | |
815 | } | |
641b4879 | 816 | set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
817 | } |
818 | ||
1da177e4 LT |
819 | cval->initialized = 1; |
820 | } | |
c3a3e040 JK |
821 | |
822 | /* USB descriptions contain the dB scale in 1/256 dB unit | |
823 | * while ALSA TLV contains in 1/100 dB unit | |
824 | */ | |
825 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
826 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
827 | if (cval->dBmin > cval->dBmax) { | |
828 | /* something is wrong; assume it's either from/to 0dB */ | |
829 | if (cval->dBmin < 0) | |
830 | cval->dBmax = 0; | |
831 | else if (cval->dBmin > 0) | |
832 | cval->dBmin = 0; | |
833 | if (cval->dBmin > cval->dBmax) { | |
834 | /* totally crap, return an error */ | |
835 | return -EINVAL; | |
836 | } | |
837 | } | |
838 | ||
1da177e4 LT |
839 | return 0; |
840 | } | |
841 | ||
842 | ||
843 | /* get a feature/mixer unit info */ | |
86e07d34 | 844 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 845 | { |
86e07d34 | 846 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
847 | |
848 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
849 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
850 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
851 | else | |
852 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
853 | uinfo->count = cval->channels; | |
854 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
855 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
856 | uinfo->value.integer.min = 0; | |
857 | uinfo->value.integer.max = 1; | |
858 | } else { | |
859 | if (! cval->initialized) | |
860 | get_min_max(cval, 0); | |
861 | uinfo->value.integer.min = 0; | |
14790f1c TI |
862 | uinfo->value.integer.max = |
863 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
864 | } |
865 | return 0; | |
866 | } | |
867 | ||
868 | /* get the current value from feature/mixer unit */ | |
86e07d34 | 869 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 870 | { |
86e07d34 | 871 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
872 | int c, cnt, val, err; |
873 | ||
641b4879 | 874 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
875 | if (cval->cmask) { |
876 | cnt = 0; | |
877 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
878 | if (!(cval->cmask & (1 << c))) |
879 | continue; | |
880 | err = get_cur_mix_value(cval, c + 1, cnt, &val); | |
881 | if (err < 0) | |
882 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
883 | val = get_relative_value(cval, val); | |
884 | ucontrol->value.integer.value[cnt] = val; | |
885 | cnt++; | |
1da177e4 | 886 | } |
641b4879 | 887 | return 0; |
1da177e4 LT |
888 | } else { |
889 | /* master channel */ | |
641b4879 TI |
890 | err = get_cur_mix_value(cval, 0, 0, &val); |
891 | if (err < 0) | |
892 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1da177e4 LT |
893 | val = get_relative_value(cval, val); |
894 | ucontrol->value.integer.value[0] = val; | |
895 | } | |
896 | return 0; | |
897 | } | |
898 | ||
899 | /* put the current value to feature/mixer unit */ | |
86e07d34 | 900 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 901 | { |
86e07d34 | 902 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
903 | int c, cnt, val, oval, err; |
904 | int changed = 0; | |
905 | ||
906 | if (cval->cmask) { | |
907 | cnt = 0; | |
908 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
909 | if (!(cval->cmask & (1 << c))) |
910 | continue; | |
911 | err = get_cur_mix_value(cval, c + 1, cnt, &oval); | |
912 | if (err < 0) | |
913 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
914 | val = ucontrol->value.integer.value[cnt]; | |
915 | val = get_abs_value(cval, val); | |
916 | if (oval != val) { | |
917 | set_cur_mix_value(cval, c + 1, cnt, val); | |
918 | changed = 1; | |
1da177e4 | 919 | } |
641b4879 | 920 | cnt++; |
1da177e4 LT |
921 | } |
922 | } else { | |
923 | /* master channel */ | |
641b4879 | 924 | err = get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 925 | if (err < 0) |
641b4879 | 926 | return cval->mixer->ignore_ctl_error ? 0 : err; |
1da177e4 LT |
927 | val = ucontrol->value.integer.value[0]; |
928 | val = get_abs_value(cval, val); | |
929 | if (val != oval) { | |
641b4879 | 930 | set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
931 | changed = 1; |
932 | } | |
933 | } | |
934 | return changed; | |
935 | } | |
936 | ||
86e07d34 | 937 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
938 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
939 | .name = "", /* will be filled later manually */ | |
940 | .info = mixer_ctl_feature_info, | |
941 | .get = mixer_ctl_feature_get, | |
942 | .put = mixer_ctl_feature_put, | |
943 | }; | |
944 | ||
23caaf19 DM |
945 | /* the read-only variant */ |
946 | static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { | |
947 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
948 | .name = "", /* will be filled later manually */ | |
949 | .info = mixer_ctl_feature_info, | |
950 | .get = mixer_ctl_feature_get, | |
951 | .put = NULL, | |
952 | }; | |
953 | ||
1da177e4 LT |
954 | |
955 | /* | |
956 | * build a feature control | |
957 | */ | |
958 | ||
08d1e635 TI |
959 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
960 | { | |
961 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
962 | } | |
963 | ||
99fc8645 | 964 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 965 | unsigned int ctl_mask, int control, |
23caaf19 | 966 | struct usb_audio_term *iterm, int unitid, |
a6a33259 | 967 | int readonly_mask) |
1da177e4 | 968 | { |
99fc8645 | 969 | struct uac_feature_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
970 | unsigned int len = 0; |
971 | int mapped_name = 0; | |
99fc8645 | 972 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
973 | struct snd_kcontrol *kctl; |
974 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 975 | const struct usbmix_name_map *map; |
1da177e4 LT |
976 | |
977 | control++; /* change from zero-based to 1-based value */ | |
978 | ||
65f25da4 | 979 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
980 | /* FIXME: not supported yet */ |
981 | return; | |
982 | } | |
983 | ||
c3a3e040 JK |
984 | map = find_map(state, unitid, control); |
985 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
986 | return; |
987 | ||
561b220a | 988 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
989 | if (! cval) { |
990 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
991 | return; | |
992 | } | |
84957a8a | 993 | cval->mixer = state->mixer; |
1da177e4 LT |
994 | cval->id = unitid; |
995 | cval->control = control; | |
996 | cval->cmask = ctl_mask; | |
997 | cval->val_type = audio_feature_info[control-1].type; | |
a6a33259 | 998 | if (ctl_mask == 0) { |
1da177e4 | 999 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
1000 | cval->master_readonly = readonly_mask; |
1001 | } else { | |
1da177e4 LT |
1002 | int i, c = 0; |
1003 | for (i = 0; i < 16; i++) | |
1004 | if (ctl_mask & (1 << i)) | |
1005 | c++; | |
1006 | cval->channels = c; | |
a6a33259 | 1007 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
1008 | } |
1009 | ||
1010 | /* get min/max values */ | |
1011 | get_min_max(cval, 0); | |
1012 | ||
a6a33259 DM |
1013 | /* if all channels in the mask are marked read-only, make the control |
1014 | * read-only. set_cur_mix_value() will check the mask again and won't | |
1015 | * issue write commands to read-only channels. */ | |
1016 | if (cval->channels == readonly_mask) | |
23caaf19 DM |
1017 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1018 | else | |
1019 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1020 | ||
1da177e4 LT |
1021 | if (! kctl) { |
1022 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1023 | kfree(cval); | |
1024 | return; | |
1025 | } | |
1026 | kctl->private_free = usb_mixer_elem_free; | |
1027 | ||
c3a3e040 | 1028 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1029 | mapped_name = len != 0; |
1030 | if (! len && nameid) | |
c3a3e040 JK |
1031 | len = snd_usb_copy_string_desc(state, nameid, |
1032 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
1033 | |
1034 | switch (control) { | |
65f25da4 DM |
1035 | case UAC_FU_MUTE: |
1036 | case UAC_FU_VOLUME: | |
1da177e4 LT |
1037 | /* determine the control name. the rule is: |
1038 | * - if a name id is given in descriptor, use it. | |
1039 | * - if the connected input can be determined, then use the name | |
1040 | * of terminal type. | |
1041 | * - if the connected output can be determined, use it. | |
1042 | * - otherwise, anonymous name. | |
1043 | */ | |
1044 | if (! len) { | |
1045 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1046 | if (! len) | |
1047 | len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1048 | if (! len) | |
1049 | len = snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1050 | "Feature %d", unitid); | |
1051 | } | |
1052 | /* determine the stream direction: | |
1053 | * if the connected output is USB stream, then it's likely a | |
1054 | * capture stream. otherwise it should be playback (hopefully :) | |
1055 | */ | |
1056 | if (! mapped_name && ! (state->oterm.type >> 16)) { | |
1057 | if ((state->oterm.type & 0xff00) == 0x0100) { | |
08d1e635 | 1058 | len = append_ctl_name(kctl, " Capture"); |
1da177e4 | 1059 | } else { |
08d1e635 | 1060 | len = append_ctl_name(kctl, " Playback"); |
1da177e4 LT |
1061 | } |
1062 | } | |
65f25da4 | 1063 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1064 | " Switch" : " Volume"); |
65f25da4 | 1065 | if (control == UAC_FU_VOLUME) { |
7bc5ba7e TI |
1066 | kctl->tlv.c = mixer_vol_tlv; |
1067 | kctl->vd[0].access |= | |
1068 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1069 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
c3a3e040 | 1070 | check_mapped_dB(map, cval); |
7bc5ba7e | 1071 | } |
1da177e4 LT |
1072 | break; |
1073 | ||
1074 | default: | |
1075 | if (! len) | |
1076 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, | |
1077 | sizeof(kctl->id.name)); | |
1078 | break; | |
1079 | } | |
1080 | ||
2cf313ee | 1081 | /* volume control quirks */ |
27d10f56 CL |
1082 | switch (state->chip->usb_id) { |
1083 | case USB_ID(0x0471, 0x0101): | |
1084 | case USB_ID(0x0471, 0x0104): | |
1085 | case USB_ID(0x0471, 0x0105): | |
1086 | case USB_ID(0x0672, 0x1041): | |
2cf313ee AF |
1087 | /* quirk for UDA1321/N101. |
1088 | * note that detection between firmware 2.1.1.7 (N101) | |
1089 | * and later 2.1.1.21 is not very clear from datasheets. | |
1090 | * I hope that the min value is -15360 for newer firmware --jk | |
1091 | */ | |
27d10f56 CL |
1092 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && |
1093 | cval->min == -15616) { | |
2cf313ee AF |
1094 | snd_printk(KERN_INFO |
1095 | "set volume quirk for UDA1321/N101 chip\n"); | |
27d10f56 CL |
1096 | cval->max = -256; |
1097 | } | |
2cf313ee AF |
1098 | break; |
1099 | ||
1100 | case USB_ID(0x046d, 0x09a4): | |
1101 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
1102 | snd_printk(KERN_INFO | |
1103 | "set volume quirk for QuickCam E3500\n"); | |
1104 | cval->min = 6080; | |
1105 | cval->max = 8768; | |
1106 | cval->res = 192; | |
1107 | } | |
1108 | break; | |
1109 | ||
1da177e4 LT |
1110 | } |
1111 | ||
1112 | snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", | |
1113 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); | |
84957a8a | 1114 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1115 | } |
1116 | ||
1117 | ||
1118 | ||
1119 | /* | |
1120 | * parse a feature unit | |
1121 | * | |
1122 | * most of controlls are defined here. | |
1123 | */ | |
28e1b773 | 1124 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) |
1da177e4 LT |
1125 | { |
1126 | int channels, i, j; | |
86e07d34 | 1127 | struct usb_audio_term iterm; |
1da177e4 LT |
1128 | unsigned int master_bits, first_ch_bits; |
1129 | int err, csize; | |
23caaf19 DM |
1130 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1131 | __u8 *bmaControls; | |
1132 | ||
1133 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1134 | csize = hdr->bControlSize; | |
1135 | channels = (hdr->bLength - 7) / csize - 1; | |
1136 | bmaControls = hdr->bmaControls; | |
1137 | } else { | |
1138 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
1139 | csize = 4; | |
e8d0fee7 | 1140 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 DM |
1141 | bmaControls = ftr->bmaControls; |
1142 | } | |
1da177e4 | 1143 | |
23caaf19 | 1144 | if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { |
de48c7bc | 1145 | snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); |
1da177e4 LT |
1146 | return -EINVAL; |
1147 | } | |
1148 | ||
1149 | /* parse the source unit */ | |
23caaf19 | 1150 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1151 | return err; |
1152 | ||
1153 | /* determine the input source type and name */ | |
23caaf19 | 1154 | if (check_input_term(state, hdr->bSourceID, &iterm) < 0) |
1da177e4 LT |
1155 | return -EINVAL; |
1156 | ||
23caaf19 | 1157 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1158 | /* master configuration quirks */ |
1159 | switch (state->chip->usb_id) { | |
1160 | case USB_ID(0x08bb, 0x2702): | |
1161 | snd_printk(KERN_INFO | |
1162 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
1163 | /* disable non-functional volume control */ | |
65f25da4 | 1164 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 JK |
1165 | break; |
1166 | } | |
1da177e4 | 1167 | if (channels > 0) |
23caaf19 | 1168 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1169 | else |
1170 | first_ch_bits = 0; | |
23caaf19 DM |
1171 | |
1172 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1173 | /* check all control types */ | |
1174 | for (i = 0; i < 10; i++) { | |
1175 | unsigned int ch_bits = 0; | |
1176 | for (j = 0; j < channels; j++) { | |
1177 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
1178 | if (mask & (1 << i)) | |
1179 | ch_bits |= (1 << j); | |
1180 | } | |
1181 | /* audio class v1 controls are never read-only */ | |
1182 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ | |
1183 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); | |
1184 | if (master_bits & (1 << i)) | |
1185 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); | |
1186 | } | |
1187 | } else { /* UAC_VERSION_2 */ | |
1188 | for (i = 0; i < 30/2; i++) { | |
1189 | /* From the USB Audio spec v2.0: | |
1190 | bmaControls() is a (ch+1)-element array of 4-byte bitmaps, | |
1191 | each containing a set of bit pairs. If a Control is present, | |
1192 | it must be Host readable. If a certain Control is not | |
1193 | present then the bit pair must be set to 0b00. | |
1194 | If a Control is present but read-only, the bit pair must be | |
1195 | set to 0b01. If a Control is also Host programmable, the bit | |
1196 | pair must be set to 0b11. The value 0b10 is not allowed. */ | |
1197 | unsigned int ch_bits = 0; | |
1198 | unsigned int ch_read_only = 0; | |
1199 | ||
1200 | for (j = 0; j < channels; j++) { | |
1201 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
dcbe7bcf | 1202 | if (uac2_control_is_readable(mask, i)) { |
23caaf19 | 1203 | ch_bits |= (1 << j); |
dcbe7bcf | 1204 | if (!uac2_control_is_writeable(mask, i)) |
23caaf19 DM |
1205 | ch_read_only |= (1 << j); |
1206 | } | |
1207 | } | |
1208 | ||
a6a33259 DM |
1209 | /* NOTE: build_feature_ctl() will mark the control read-only if all channels |
1210 | * are marked read-only in the descriptors. Otherwise, the control will be | |
1211 | * reported as writeable, but the driver will not actually issue a write | |
1212 | * command for read-only channels */ | |
23caaf19 | 1213 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ |
a6a33259 | 1214 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); |
dcbe7bcf | 1215 | if (uac2_control_is_readable(master_bits, i)) |
23caaf19 | 1216 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
dcbe7bcf | 1217 | !uac2_control_is_writeable(master_bits, i)); |
1da177e4 | 1218 | } |
1da177e4 LT |
1219 | } |
1220 | ||
1221 | return 0; | |
1222 | } | |
1223 | ||
1224 | ||
1225 | /* | |
1226 | * Mixer Unit | |
1227 | */ | |
1228 | ||
1229 | /* | |
1230 | * build a mixer unit control | |
1231 | * | |
1232 | * the callbacks are identical with feature unit. | |
1233 | * input channel number (zero based) is given in control field instead. | |
1234 | */ | |
1235 | ||
99fc8645 DM |
1236 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1237 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1238 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1239 | struct usb_audio_term *iterm) |
1da177e4 | 1240 | { |
86e07d34 | 1241 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1242 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1243 | unsigned int i, len; |
86e07d34 | 1244 | struct snd_kcontrol *kctl; |
c3a3e040 | 1245 | const struct usbmix_name_map *map; |
1da177e4 | 1246 | |
c3a3e040 JK |
1247 | map = find_map(state, unitid, 0); |
1248 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1249 | return; |
1250 | ||
561b220a | 1251 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1252 | if (! cval) |
1253 | return; | |
1254 | ||
84957a8a | 1255 | cval->mixer = state->mixer; |
1da177e4 LT |
1256 | cval->id = unitid; |
1257 | cval->control = in_ch + 1; /* based on 1 */ | |
1258 | cval->val_type = USB_MIXER_S16; | |
1259 | for (i = 0; i < num_outs; i++) { | |
23caaf19 | 1260 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { |
1da177e4 LT |
1261 | cval->cmask |= (1 << i); |
1262 | cval->channels++; | |
1263 | } | |
1264 | } | |
1265 | ||
1266 | /* get min/max values */ | |
1267 | get_min_max(cval, 0); | |
1268 | ||
1269 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1270 | if (! kctl) { | |
1271 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1272 | kfree(cval); | |
1273 | return; | |
1274 | } | |
1275 | kctl->private_free = usb_mixer_elem_free; | |
1276 | ||
c3a3e040 | 1277 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1278 | if (! len) |
1279 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); | |
1280 | if (! len) | |
1281 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); | |
08d1e635 | 1282 | append_ctl_name(kctl, " Volume"); |
1da177e4 LT |
1283 | |
1284 | snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", | |
1285 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1286 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1287 | } |
1288 | ||
1289 | ||
1290 | /* | |
1291 | * parse a mixer unit | |
1292 | */ | |
99fc8645 | 1293 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1294 | { |
99fc8645 | 1295 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1296 | struct usb_audio_term iterm; |
1da177e4 LT |
1297 | int input_pins, num_ins, num_outs; |
1298 | int pin, ich, err; | |
1299 | ||
99fc8645 | 1300 | if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { |
1da177e4 LT |
1301 | snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); |
1302 | return -EINVAL; | |
1303 | } | |
1304 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
99fc8645 | 1305 | if (desc->bLength <= 10 + input_pins) { |
1da177e4 LT |
1306 | snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); |
1307 | return 0; | |
1308 | } | |
1309 | ||
1310 | num_ins = 0; | |
1311 | ich = 0; | |
1312 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1313 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 LT |
1314 | if (err < 0) |
1315 | return err; | |
99fc8645 | 1316 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1317 | if (err < 0) |
1318 | return err; | |
1319 | num_ins += iterm.channels; | |
1320 | for (; ich < num_ins; ++ich) { | |
1321 | int och, ich_has_controls = 0; | |
1322 | ||
1323 | for (och = 0; och < num_outs; ++och) { | |
23caaf19 | 1324 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), |
1da177e4 LT |
1325 | ich, och, num_outs)) { |
1326 | ich_has_controls = 1; | |
1327 | break; | |
1328 | } | |
1329 | } | |
1330 | if (ich_has_controls) | |
1331 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1332 | unitid, &iterm); | |
1333 | } | |
1334 | } | |
1335 | return 0; | |
1336 | } | |
1337 | ||
1338 | ||
1339 | /* | |
1340 | * Processing Unit / Extension Unit | |
1341 | */ | |
1342 | ||
1343 | /* get callback for processing/extension unit */ | |
86e07d34 | 1344 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1345 | { |
86e07d34 | 1346 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1347 | int err, val; |
1348 | ||
1349 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
84957a8a | 1350 | if (err < 0 && cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1351 | ucontrol->value.integer.value[0] = cval->min; |
1352 | return 0; | |
1353 | } | |
1354 | if (err < 0) | |
1355 | return err; | |
1356 | val = get_relative_value(cval, val); | |
1357 | ucontrol->value.integer.value[0] = val; | |
1358 | return 0; | |
1359 | } | |
1360 | ||
1361 | /* put callback for processing/extension unit */ | |
86e07d34 | 1362 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1363 | { |
86e07d34 | 1364 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1365 | int val, oval, err; |
1366 | ||
1367 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
1368 | if (err < 0) { | |
84957a8a | 1369 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1370 | return 0; |
1371 | return err; | |
1372 | } | |
1373 | val = ucontrol->value.integer.value[0]; | |
1374 | val = get_abs_value(cval, val); | |
1375 | if (val != oval) { | |
1376 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1377 | return 1; | |
1378 | } | |
1379 | return 0; | |
1380 | } | |
1381 | ||
1382 | /* alsa control interface for processing/extension unit */ | |
86e07d34 | 1383 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1384 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1385 | .name = "", /* will be filled later */ | |
1386 | .info = mixer_ctl_feature_info, | |
1387 | .get = mixer_ctl_procunit_get, | |
1388 | .put = mixer_ctl_procunit_put, | |
1389 | }; | |
1390 | ||
1391 | ||
1392 | /* | |
1393 | * predefined data for processing units | |
1394 | */ | |
1395 | struct procunit_value_info { | |
1396 | int control; | |
1397 | char *suffix; | |
1398 | int val_type; | |
1399 | int min_value; | |
1400 | }; | |
1401 | ||
1402 | struct procunit_info { | |
1403 | int type; | |
1404 | char *name; | |
1405 | struct procunit_value_info *values; | |
1406 | }; | |
1407 | ||
1408 | static struct procunit_value_info updown_proc_info[] = { | |
65f25da4 DM |
1409 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1410 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1411 | { 0 } |
1412 | }; | |
1413 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
1414 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1415 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1416 | { 0 } |
1417 | }; | |
1418 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
1419 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1420 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
1421 | { 0 } |
1422 | }; | |
1423 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
1424 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1425 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1426 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1427 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
1428 | { 0 } |
1429 | }; | |
1430 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
1431 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1432 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1433 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1434 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
1435 | { 0 } |
1436 | }; | |
1437 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
1438 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1439 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
1440 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
1441 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1442 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
1443 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
1444 | { 0 } |
1445 | }; | |
1446 | ||
1447 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
1448 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
1449 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1450 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
1451 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
1452 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
1453 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
1454 | { 0 }, |
1455 | }; | |
7d2b451e SK |
1456 | /* |
1457 | * predefined data for extension units | |
1458 | */ | |
1459 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1460 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1461 | { 0 } | |
7d2b451e SK |
1462 | }; |
1463 | static struct procunit_value_info clock_source_xu_info[] = { | |
1464 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1465 | { 0 } | |
1466 | }; | |
1467 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1468 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1469 | { 0 } | |
1470 | }; | |
1471 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1472 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1473 | { 0 } | |
1474 | }; | |
1475 | static struct procunit_info extunits[] = { | |
1476 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1477 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1478 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1479 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1480 | { 0 } | |
1481 | }; | |
1da177e4 LT |
1482 | /* |
1483 | * build a processing/extension unit | |
1484 | */ | |
99fc8645 | 1485 | static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) |
1da177e4 | 1486 | { |
99fc8645 DM |
1487 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1488 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1489 | struct usb_mixer_elem_info *cval; |
1490 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1491 | int i, err, nameid, type, len; |
1492 | struct procunit_info *info; | |
1493 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1494 | const struct usbmix_name_map *map; |
1da177e4 LT |
1495 | static struct procunit_value_info default_value_info[] = { |
1496 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1497 | { 0 } | |
1498 | }; | |
1499 | static struct procunit_info default_info = { | |
1500 | 0, NULL, default_value_info | |
1501 | }; | |
1502 | ||
23caaf19 DM |
1503 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1504 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
1da177e4 LT |
1505 | snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); |
1506 | return -EINVAL; | |
1507 | } | |
1508 | ||
1509 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1510 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1511 | return err; |
1512 | } | |
1513 | ||
99fc8645 | 1514 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1515 | for (info = list; info && info->type; info++) |
1516 | if (info->type == type) | |
1517 | break; | |
1518 | if (! info || ! info->type) | |
1519 | info = &default_info; | |
1520 | ||
1521 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1522 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 DM |
1523 | |
1524 | if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) | |
1da177e4 | 1525 | continue; |
c3a3e040 JK |
1526 | map = find_map(state, unitid, valinfo->control); |
1527 | if (check_ignored_ctl(map)) | |
1da177e4 | 1528 | continue; |
561b220a | 1529 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1530 | if (! cval) { |
1531 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1532 | return -ENOMEM; | |
1533 | } | |
84957a8a | 1534 | cval->mixer = state->mixer; |
1da177e4 LT |
1535 | cval->id = unitid; |
1536 | cval->control = valinfo->control; | |
1537 | cval->val_type = valinfo->val_type; | |
1538 | cval->channels = 1; | |
1539 | ||
1540 | /* get min/max values */ | |
65f25da4 | 1541 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
23caaf19 | 1542 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1543 | /* FIXME: hard-coded */ |
1544 | cval->min = 1; | |
99fc8645 | 1545 | cval->max = control_spec[0]; |
1da177e4 LT |
1546 | cval->res = 1; |
1547 | cval->initialized = 1; | |
7d2b451e SK |
1548 | } else { |
1549 | if (type == USB_XU_CLOCK_RATE) { | |
1550 | /* E-Mu USB 0404/0202/TrackerPre | |
1551 | * samplerate control quirk | |
1552 | */ | |
1553 | cval->min = 0; | |
1554 | cval->max = 5; | |
1555 | cval->res = 1; | |
1556 | cval->initialized = 1; | |
1557 | } else | |
1558 | get_min_max(cval, valinfo->min_value); | |
1559 | } | |
1da177e4 LT |
1560 | |
1561 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
1562 | if (! kctl) { | |
1563 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1564 | kfree(cval); | |
1565 | return -ENOMEM; | |
1566 | } | |
1567 | kctl->private_free = usb_mixer_elem_free; | |
1568 | ||
c3a3e040 JK |
1569 | if (check_mapped_name(map, kctl->id.name, |
1570 | sizeof(kctl->id.name))) | |
1571 | /* nothing */ ; | |
1da177e4 LT |
1572 | else if (info->name) |
1573 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); | |
1574 | else { | |
23caaf19 | 1575 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1576 | len = 0; |
1577 | if (nameid) | |
1578 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1579 | if (! len) | |
1580 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); | |
1581 | } | |
08d1e635 TI |
1582 | append_ctl_name(kctl, " "); |
1583 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 LT |
1584 | |
1585 | snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", | |
1586 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1587 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1588 | return err; |
1589 | } | |
1590 | return 0; | |
1591 | } | |
1592 | ||
1593 | ||
99fc8645 | 1594 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1595 | { |
99fc8645 | 1596 | return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); |
1da177e4 LT |
1597 | } |
1598 | ||
99fc8645 | 1599 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1600 | { |
99fc8645 DM |
1601 | /* Note that we parse extension units with processing unit descriptors. |
1602 | * That's ok as the layout is the same */ | |
1603 | return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); | |
1da177e4 LT |
1604 | } |
1605 | ||
1606 | ||
1607 | /* | |
1608 | * Selector Unit | |
1609 | */ | |
1610 | ||
1611 | /* info callback for selector unit | |
1612 | * use an enumerator type for routing | |
1613 | */ | |
86e07d34 | 1614 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 1615 | { |
86e07d34 | 1616 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1617 | char **itemlist = (char **)kcontrol->private_value; |
1618 | ||
5e246b85 TI |
1619 | if (snd_BUG_ON(!itemlist)) |
1620 | return -EINVAL; | |
1da177e4 LT |
1621 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
1622 | uinfo->count = 1; | |
1623 | uinfo->value.enumerated.items = cval->max; | |
1624 | if ((int)uinfo->value.enumerated.item >= cval->max) | |
1625 | uinfo->value.enumerated.item = cval->max - 1; | |
1626 | strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]); | |
1627 | return 0; | |
1628 | } | |
1629 | ||
1630 | /* get callback for selector unit */ | |
86e07d34 | 1631 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1632 | { |
86e07d34 | 1633 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1634 | int val, err; |
1635 | ||
09414207 | 1636 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 1637 | if (err < 0) { |
84957a8a | 1638 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1639 | ucontrol->value.enumerated.item[0] = 0; |
1640 | return 0; | |
1641 | } | |
1642 | return err; | |
1643 | } | |
1644 | val = get_relative_value(cval, val); | |
1645 | ucontrol->value.enumerated.item[0] = val; | |
1646 | return 0; | |
1647 | } | |
1648 | ||
1649 | /* put callback for selector unit */ | |
86e07d34 | 1650 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1651 | { |
86e07d34 | 1652 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1653 | int val, oval, err; |
1654 | ||
09414207 | 1655 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
1da177e4 | 1656 | if (err < 0) { |
84957a8a | 1657 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1658 | return 0; |
1659 | return err; | |
1660 | } | |
1661 | val = ucontrol->value.enumerated.item[0]; | |
1662 | val = get_abs_value(cval, val); | |
1663 | if (val != oval) { | |
09414207 | 1664 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
1665 | return 1; |
1666 | } | |
1667 | return 0; | |
1668 | } | |
1669 | ||
1670 | /* alsa control interface for selector unit */ | |
86e07d34 | 1671 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
1672 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1673 | .name = "", /* will be filled later */ | |
1674 | .info = mixer_ctl_selector_info, | |
1675 | .get = mixer_ctl_selector_get, | |
1676 | .put = mixer_ctl_selector_put, | |
1677 | }; | |
1678 | ||
1679 | ||
1680 | /* private free callback. | |
1681 | * free both private_data and private_value | |
1682 | */ | |
86e07d34 | 1683 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
1684 | { |
1685 | int i, num_ins = 0; | |
1686 | ||
1687 | if (kctl->private_data) { | |
86e07d34 | 1688 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
1689 | num_ins = cval->max; |
1690 | kfree(cval); | |
1691 | kctl->private_data = NULL; | |
1692 | } | |
1693 | if (kctl->private_value) { | |
1694 | char **itemlist = (char **)kctl->private_value; | |
1695 | for (i = 0; i < num_ins; i++) | |
1696 | kfree(itemlist[i]); | |
1697 | kfree(itemlist); | |
1698 | kctl->private_value = 0; | |
1699 | } | |
1700 | } | |
1701 | ||
1702 | /* | |
1703 | * parse a selector unit | |
1704 | */ | |
99fc8645 | 1705 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1706 | { |
99fc8645 | 1707 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1708 | unsigned int i, nameid, len; |
1709 | int err; | |
86e07d34 TI |
1710 | struct usb_mixer_elem_info *cval; |
1711 | struct snd_kcontrol *kctl; | |
c3a3e040 | 1712 | const struct usbmix_name_map *map; |
1da177e4 LT |
1713 | char **namelist; |
1714 | ||
99fc8645 | 1715 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
1da177e4 LT |
1716 | snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); |
1717 | return -EINVAL; | |
1718 | } | |
1719 | ||
99fc8645 DM |
1720 | for (i = 0; i < desc->bNrInPins; i++) { |
1721 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
1722 | return err; |
1723 | } | |
1724 | ||
99fc8645 | 1725 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
1726 | return 0; |
1727 | ||
c3a3e040 JK |
1728 | map = find_map(state, unitid, 0); |
1729 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1730 | return 0; |
1731 | ||
561b220a | 1732 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1733 | if (! cval) { |
1734 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1735 | return -ENOMEM; | |
1736 | } | |
84957a8a | 1737 | cval->mixer = state->mixer; |
1da177e4 LT |
1738 | cval->id = unitid; |
1739 | cval->val_type = USB_MIXER_U8; | |
1740 | cval->channels = 1; | |
1741 | cval->min = 1; | |
99fc8645 | 1742 | cval->max = desc->bNrInPins; |
1da177e4 LT |
1743 | cval->res = 1; |
1744 | cval->initialized = 1; | |
1745 | ||
09414207 DM |
1746 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
1747 | cval->control = UAC2_CX_CLOCK_SELECTOR; | |
1748 | else | |
1749 | cval->control = 0; | |
1750 | ||
99fc8645 | 1751 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
1da177e4 LT |
1752 | if (! namelist) { |
1753 | snd_printk(KERN_ERR "cannot malloc\n"); | |
1754 | kfree(cval); | |
1755 | return -ENOMEM; | |
1756 | } | |
1757 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 1758 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 1759 | struct usb_audio_term iterm; |
1da177e4 LT |
1760 | len = 0; |
1761 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
1762 | if (! namelist[i]) { | |
1763 | snd_printk(KERN_ERR "cannot malloc\n"); | |
7fbe3ca5 | 1764 | while (i--) |
1da177e4 LT |
1765 | kfree(namelist[i]); |
1766 | kfree(namelist); | |
1767 | kfree(cval); | |
1768 | return -ENOMEM; | |
1769 | } | |
8e062ec7 CL |
1770 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
1771 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 1772 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
1773 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
1774 | if (! len) | |
1775 | sprintf(namelist[i], "Input %d", i); | |
1776 | } | |
1777 | ||
1778 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
1779 | if (! kctl) { | |
1780 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
878b4789 | 1781 | kfree(namelist); |
1da177e4 LT |
1782 | kfree(cval); |
1783 | return -ENOMEM; | |
1784 | } | |
1785 | kctl->private_value = (unsigned long)namelist; | |
1786 | kctl->private_free = usb_mixer_selector_elem_free; | |
1787 | ||
99fc8645 | 1788 | nameid = uac_selector_unit_iSelector(desc); |
c3a3e040 | 1789 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1790 | if (len) |
1791 | ; | |
1792 | else if (nameid) | |
1793 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1794 | else { | |
1795 | len = get_term_name(state, &state->oterm, | |
1796 | kctl->id.name, sizeof(kctl->id.name), 0); | |
1797 | if (! len) | |
1798 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); | |
1799 | ||
09414207 DM |
1800 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
1801 | append_ctl_name(kctl, " Clock Source"); | |
1802 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 1803 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 1804 | else |
08d1e635 | 1805 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
1806 | } |
1807 | ||
1808 | snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", | |
99fc8645 | 1809 | cval->id, kctl->id.name, desc->bNrInPins); |
84957a8a | 1810 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1811 | return err; |
1812 | ||
1813 | return 0; | |
1814 | } | |
1815 | ||
1816 | ||
1817 | /* | |
1818 | * parse an audio unit recursively | |
1819 | */ | |
1820 | ||
86e07d34 | 1821 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
1822 | { |
1823 | unsigned char *p1; | |
1824 | ||
1825 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
1826 | return 0; /* the unit already visited */ | |
1827 | ||
1828 | p1 = find_audio_control_unit(state, unitid); | |
1829 | if (!p1) { | |
1830 | snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); | |
1831 | return -EINVAL; | |
1832 | } | |
1833 | ||
1834 | switch (p1[2]) { | |
de48c7bc | 1835 | case UAC_INPUT_TERMINAL: |
09414207 | 1836 | case UAC2_CLOCK_SOURCE: |
1da177e4 | 1837 | return 0; /* NOP */ |
de48c7bc | 1838 | case UAC_MIXER_UNIT: |
1da177e4 | 1839 | return parse_audio_mixer_unit(state, unitid, p1); |
de48c7bc | 1840 | case UAC_SELECTOR_UNIT: |
09414207 | 1841 | case UAC2_CLOCK_SELECTOR: |
1da177e4 | 1842 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 1843 | case UAC_FEATURE_UNIT: |
1da177e4 | 1844 | return parse_audio_feature_unit(state, unitid, p1); |
de48c7bc | 1845 | case UAC_PROCESSING_UNIT_V1: |
23caaf19 DM |
1846 | /* UAC2_EFFECT_UNIT has the same value */ |
1847 | if (state->mixer->protocol == UAC_VERSION_1) | |
1848 | return parse_audio_processing_unit(state, unitid, p1); | |
1849 | else | |
1850 | return 0; /* FIXME - effect units not implemented yet */ | |
de48c7bc | 1851 | case UAC_EXTENSION_UNIT_V1: |
23caaf19 DM |
1852 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
1853 | if (state->mixer->protocol == UAC_VERSION_1) | |
1854 | return parse_audio_extension_unit(state, unitid, p1); | |
1855 | else /* UAC_VERSION_2 */ | |
1856 | return parse_audio_processing_unit(state, unitid, p1); | |
1da177e4 LT |
1857 | default: |
1858 | snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1859 | return -EINVAL; | |
1860 | } | |
1861 | } | |
1862 | ||
84957a8a CL |
1863 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
1864 | { | |
6639b6c2 CL |
1865 | kfree(mixer->id_elems); |
1866 | if (mixer->urb) { | |
1867 | kfree(mixer->urb->transfer_buffer); | |
1868 | usb_free_urb(mixer->urb); | |
1869 | } | |
68df9de1 | 1870 | usb_free_urb(mixer->rc_urb); |
b259b10c | 1871 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
1872 | kfree(mixer); |
1873 | } | |
1874 | ||
86e07d34 | 1875 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
1876 | { |
1877 | struct usb_mixer_interface *mixer = device->device_data; | |
1878 | snd_usb_mixer_free(mixer); | |
1879 | return 0; | |
1880 | } | |
1881 | ||
1da177e4 LT |
1882 | /* |
1883 | * create mixer controls | |
1884 | * | |
de48c7bc | 1885 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 1886 | */ |
84957a8a | 1887 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 1888 | { |
86e07d34 | 1889 | struct mixer_build state; |
1da177e4 LT |
1890 | int err; |
1891 | const struct usbmix_ctl_map *map; | |
84957a8a | 1892 | struct usb_host_interface *hostif; |
23caaf19 | 1893 | void *p; |
1da177e4 | 1894 | |
84957a8a | 1895 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; |
1da177e4 | 1896 | memset(&state, 0, sizeof(state)); |
84957a8a CL |
1897 | state.chip = mixer->chip; |
1898 | state.mixer = mixer; | |
1da177e4 LT |
1899 | state.buffer = hostif->extra; |
1900 | state.buflen = hostif->extralen; | |
1da177e4 LT |
1901 | |
1902 | /* check the mapping table */ | |
27d10f56 CL |
1903 | for (map = usbmix_ctl_maps; map->id; map++) { |
1904 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 1905 | state.map = map->map; |
8e062ec7 | 1906 | state.selector_map = map->selector_map; |
84957a8a | 1907 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
1908 | break; |
1909 | } | |
1910 | } | |
1da177e4 | 1911 | |
23caaf19 DM |
1912 | p = NULL; |
1913 | while ((p = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, p, UAC_OUTPUT_TERMINAL)) != NULL) { | |
1914 | if (mixer->protocol == UAC_VERSION_1) { | |
1915 | struct uac_output_terminal_descriptor_v1 *desc = p; | |
1916 | ||
1917 | if (desc->bLength < sizeof(*desc)) | |
1918 | continue; /* invalid descriptor? */ | |
1919 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
1920 | state.oterm.id = desc->bTerminalID; | |
1921 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1922 | state.oterm.name = desc->iTerminal; | |
1923 | err = parse_audio_unit(&state, desc->bSourceID); | |
1924 | if (err < 0) | |
1925 | return err; | |
1926 | } else { /* UAC_VERSION_2 */ | |
1927 | struct uac2_output_terminal_descriptor *desc = p; | |
1928 | ||
1929 | if (desc->bLength < sizeof(*desc)) | |
1930 | continue; /* invalid descriptor? */ | |
1931 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
1932 | state.oterm.id = desc->bTerminalID; | |
1933 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1934 | state.oterm.name = desc->iTerminal; | |
1935 | err = parse_audio_unit(&state, desc->bSourceID); | |
1936 | if (err < 0) | |
1937 | return err; | |
09414207 DM |
1938 | |
1939 | /* for UAC2, use the same approach to also add the clock selectors */ | |
1940 | err = parse_audio_unit(&state, desc->bCSourceID); | |
1941 | if (err < 0) | |
1942 | return err; | |
23caaf19 | 1943 | } |
1da177e4 | 1944 | } |
23caaf19 | 1945 | |
1da177e4 LT |
1946 | return 0; |
1947 | } | |
84957a8a | 1948 | |
7b1eda22 | 1949 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 1950 | { |
86e07d34 | 1951 | struct usb_mixer_elem_info *info; |
6639b6c2 CL |
1952 | |
1953 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) | |
1954 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
1955 | info->elem_id); | |
1956 | } | |
1957 | ||
ebfdeea3 JK |
1958 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
1959 | int unitid, | |
1960 | struct usb_mixer_elem_info *cval) | |
1961 | { | |
1962 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", | |
1963 | "S8", "U8", "S16", "U16"}; | |
1964 | snd_iprintf(buffer, " Unit: %i\n", unitid); | |
1965 | if (cval->elem_id) | |
1966 | snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", | |
1967 | cval->elem_id->name, cval->elem_id->index); | |
1968 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " | |
1969 | "channels=%i, type=\"%s\"\n", cval->id, | |
1970 | cval->control, cval->cmask, cval->channels, | |
1971 | val_types[cval->val_type]); | |
1972 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
1973 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
1974 | } | |
1975 | ||
1976 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
1977 | struct snd_info_buffer *buffer) | |
1978 | { | |
1979 | struct snd_usb_audio *chip = entry->private_data; | |
1980 | struct usb_mixer_interface *mixer; | |
1981 | struct usb_mixer_elem_info *cval; | |
1982 | int unitid; | |
1983 | ||
1984 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
1985 | snd_iprintf(buffer, | |
7affdc17 JK |
1986 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
1987 | chip->usb_id, mixer->ctrlif, | |
1988 | mixer->ignore_ctl_error); | |
ebfdeea3 JK |
1989 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
1990 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
1991 | for (cval = mixer->id_elems[unitid]; cval; | |
1992 | cval = cval->next_id_elem) | |
1993 | snd_usb_mixer_dump_cval(buffer, unitid, cval); | |
1994 | } | |
1995 | } | |
1996 | } | |
1997 | ||
e213e9cf DM |
1998 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
1999 | int attribute, int value, int index) | |
2000 | { | |
2001 | struct usb_mixer_elem_info *info; | |
2002 | __u8 unitid = (index >> 8) & 0xff; | |
2003 | __u8 control = (value >> 8) & 0xff; | |
2004 | __u8 channel = value & 0xff; | |
2005 | ||
2006 | if (channel >= MAX_CHANNELS) { | |
2007 | snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", | |
2008 | __func__, channel); | |
2009 | return; | |
2010 | } | |
2011 | ||
2012 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { | |
2013 | if (info->control != control) | |
2014 | continue; | |
2015 | ||
2016 | switch (attribute) { | |
2017 | case UAC2_CS_CUR: | |
2018 | /* invalidate cache, so the value is read from the device */ | |
2019 | if (channel) | |
2020 | info->cached &= ~(1 << channel); | |
2021 | else /* master channel */ | |
2022 | info->cached = 0; | |
2023 | ||
2024 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2025 | info->elem_id); | |
2026 | break; | |
2027 | ||
2028 | case UAC2_CS_RANGE: | |
2029 | /* TODO */ | |
2030 | break; | |
2031 | ||
2032 | case UAC2_CS_MEM: | |
2033 | /* TODO */ | |
2034 | break; | |
2035 | ||
2036 | default: | |
2037 | snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", | |
2038 | attribute); | |
2039 | break; | |
2040 | } /* switch */ | |
2041 | } | |
2042 | } | |
2043 | ||
2044 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2045 | { |
2046 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf DM |
2047 | int len = urb->actual_length; |
2048 | ||
2049 | if (urb->status != 0) | |
2050 | goto requeue; | |
6639b6c2 | 2051 | |
e213e9cf DM |
2052 | if (mixer->protocol == UAC_VERSION_1) { |
2053 | struct uac1_status_word *status; | |
6639b6c2 | 2054 | |
e213e9cf DM |
2055 | for (status = urb->transfer_buffer; |
2056 | len >= sizeof(*status); | |
2057 | len -= sizeof(*status), status++) { | |
6639b6c2 | 2058 | snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", |
e213e9cf DM |
2059 | status->bStatusType, |
2060 | status->bOriginator); | |
2061 | ||
6639b6c2 | 2062 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2063 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2064 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2065 | continue; |
e213e9cf DM |
2066 | |
2067 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2068 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2069 | else |
e213e9cf DM |
2070 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2071 | } | |
2072 | } else { /* UAC_VERSION_2 */ | |
2073 | struct uac2_interrupt_data_msg *msg; | |
2074 | ||
2075 | for (msg = urb->transfer_buffer; | |
2076 | len >= sizeof(*msg); | |
2077 | len -= sizeof(*msg), msg++) { | |
2078 | /* drop vendor specific and endpoint requests */ | |
2079 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2080 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2081 | continue; | |
2082 | ||
2083 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2084 | le16_to_cpu(msg->wValue), | |
2085 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2086 | } |
2087 | } | |
e213e9cf DM |
2088 | |
2089 | requeue: | |
6639b6c2 CL |
2090 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) { |
2091 | urb->dev = mixer->chip->dev; | |
2092 | usb_submit_urb(urb, GFP_ATOMIC); | |
2093 | } | |
2094 | } | |
2095 | ||
2096 | /* create the handler for the optional status interrupt endpoint */ | |
2097 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2098 | { | |
2099 | struct usb_host_interface *hostif; | |
2100 | struct usb_endpoint_descriptor *ep; | |
2101 | void *transfer_buffer; | |
2102 | int buffer_length; | |
2103 | unsigned int epnum; | |
2104 | ||
2105 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; | |
2106 | /* we need one interrupt input endpoint */ | |
2107 | if (get_iface_desc(hostif)->bNumEndpoints < 1) | |
2108 | return 0; | |
2109 | ep = get_endpoint(hostif, 0); | |
913ae5a2 | 2110 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2111 | return 0; |
2112 | ||
42a6e66f | 2113 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2114 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2115 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2116 | if (!transfer_buffer) | |
2117 | return -ENOMEM; | |
2118 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2119 | if (!mixer->urb) { | |
2120 | kfree(transfer_buffer); | |
2121 | return -ENOMEM; | |
2122 | } | |
2123 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2124 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2125 | transfer_buffer, buffer_length, | |
e213e9cf | 2126 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2127 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2128 | return 0; | |
2129 | } | |
2130 | ||
7a9b8063 TI |
2131 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2132 | int ignore_error) | |
84957a8a | 2133 | { |
86e07d34 | 2134 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2135 | .dev_free = snd_usb_mixer_dev_free |
2136 | }; | |
2137 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2138 | struct snd_info_entry *entry; |
7b8a043f | 2139 | struct usb_host_interface *host_iface; |
23caaf19 | 2140 | int err; |
84957a8a CL |
2141 | |
2142 | strcpy(chip->card->mixername, "USB Mixer"); | |
2143 | ||
561b220a | 2144 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2145 | if (!mixer) |
2146 | return -ENOMEM; | |
2147 | mixer->chip = chip; | |
2148 | mixer->ctrlif = ctrlif; | |
7a9b8063 | 2149 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2150 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2151 | GFP_KERNEL); | |
6639b6c2 CL |
2152 | if (!mixer->id_elems) { |
2153 | kfree(mixer); | |
2154 | return -ENOMEM; | |
2155 | } | |
84957a8a | 2156 | |
7b8a043f | 2157 | host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
ca4c2ada | 2158 | mixer->protocol = get_iface_desc(host_iface)->bInterfaceProtocol; |
7b8a043f | 2159 | |
6639b6c2 | 2160 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2161 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2162 | goto _error; | |
84957a8a | 2163 | |
7b1eda22 | 2164 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2165 | |
84957a8a | 2166 | err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); |
93446edc CL |
2167 | if (err < 0) |
2168 | goto _error; | |
ebfdeea3 JK |
2169 | |
2170 | if (list_empty(&chip->mixer_list) && | |
2171 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2172 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2173 | ||
84957a8a CL |
2174 | list_add(&mixer->list, &chip->mixer_list); |
2175 | return 0; | |
93446edc CL |
2176 | |
2177 | _error: | |
2178 | snd_usb_mixer_free(mixer); | |
2179 | return err; | |
84957a8a CL |
2180 | } |
2181 | ||
2182 | void snd_usb_mixer_disconnect(struct list_head *p) | |
2183 | { | |
6639b6c2 | 2184 | struct usb_mixer_interface *mixer; |
7b1eda22 | 2185 | |
6639b6c2 | 2186 | mixer = list_entry(p, struct usb_mixer_interface, list); |
68df9de1 MK |
2187 | usb_kill_urb(mixer->urb); |
2188 | usb_kill_urb(mixer->rc_urb); | |
84957a8a | 2189 | } |