]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * (Tentative) USB Audio Driver for ALSA | |
3 | * | |
4 | * Mixer control part | |
5 | * | |
6 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> | |
7 | * | |
8 | * Many codes borrowed from audio.c by | |
9 | * Alan Cox (alan@lxorguk.ukuu.org.uk) | |
10 | * Thomas Sailer (sailer@ife.ee.ethz.ch) | |
11 | * | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License as published by | |
15 | * the Free Software Foundation; either version 2 of the License, or | |
16 | * (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
26 | * | |
27 | */ | |
28 | ||
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 | { | |
300 | unsigned char buf[14]; /* enough space for one range of 4 bytes */ | |
301 | unsigned char *val; | |
302 | int ret; | |
303 | __u8 bRequest; | |
304 | ||
305 | bRequest = (request == UAC_GET_CUR) ? | |
306 | UAC2_CS_CUR : UAC2_CS_RANGE; | |
307 | ||
308 | ret = snd_usb_ctl_msg(cval->mixer->chip->dev, | |
309 | usb_rcvctrlpipe(cval->mixer->chip->dev, 0), | |
310 | bRequest, | |
311 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
312 | validx, cval->mixer->ctrlif | (cval->id << 8), | |
313 | buf, sizeof(buf), 1000); | |
314 | ||
315 | if (ret < 0) { | |
09414207 DM |
316 | snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
317 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); | |
23caaf19 DM |
318 | return ret; |
319 | } | |
320 | ||
321 | switch (request) { | |
322 | case UAC_GET_CUR: | |
323 | val = buf; | |
324 | break; | |
325 | case UAC_GET_MIN: | |
326 | val = buf + sizeof(__u16); | |
327 | break; | |
328 | case UAC_GET_MAX: | |
329 | val = buf + sizeof(__u16) * 2; | |
330 | break; | |
331 | case UAC_GET_RES: | |
332 | val = buf + sizeof(__u16) * 3; | |
333 | break; | |
334 | default: | |
335 | return -EINVAL; | |
336 | } | |
337 | ||
338 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); | |
339 | ||
340 | return 0; | |
341 | } | |
342 | ||
343 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) | |
344 | { | |
345 | return (cval->mixer->protocol == UAC_VERSION_1) ? | |
346 | get_ctl_value_v1(cval, request, validx, value_ret) : | |
347 | get_ctl_value_v2(cval, request, validx, value_ret); | |
348 | } | |
349 | ||
86e07d34 | 350 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) |
1da177e4 | 351 | { |
de48c7bc | 352 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
353 | } |
354 | ||
355 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
356 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
357 | int channel, int *value) | |
1da177e4 | 358 | { |
de48c7bc | 359 | return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); |
1da177e4 LT |
360 | } |
361 | ||
641b4879 TI |
362 | static int get_cur_mix_value(struct usb_mixer_elem_info *cval, |
363 | int channel, int index, int *value) | |
364 | { | |
365 | int err; | |
366 | ||
367 | if (cval->cached & (1 << channel)) { | |
368 | *value = cval->cache_val[index]; | |
369 | return 0; | |
370 | } | |
371 | err = get_cur_mix_raw(cval, channel, value); | |
372 | if (err < 0) { | |
373 | if (!cval->mixer->ignore_ctl_error) | |
23caaf19 | 374 | snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", |
641b4879 TI |
375 | cval->control, channel, err); |
376 | return err; | |
377 | } | |
378 | cval->cached |= 1 << channel; | |
379 | cval->cache_val[index] = *value; | |
380 | return 0; | |
381 | } | |
382 | ||
383 | ||
1da177e4 LT |
384 | /* |
385 | * set a mixer value | |
386 | */ | |
387 | ||
7b1eda22 DM |
388 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
389 | int request, int validx, int value_set) | |
1da177e4 LT |
390 | { |
391 | unsigned char buf[2]; | |
23caaf19 DM |
392 | int val_len, timeout = 10; |
393 | ||
394 | if (cval->mixer->protocol == UAC_VERSION_1) { | |
395 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
396 | } else { /* UAC_VERSION_2 */ | |
397 | /* audio class v2 controls are always 2 bytes in size */ | |
398 | val_len = sizeof(__u16); | |
399 | ||
400 | /* FIXME */ | |
401 | if (request != UAC_SET_CUR) { | |
402 | snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); | |
403 | return -EINVAL; | |
404 | } | |
405 | ||
406 | request = UAC2_CS_CUR; | |
407 | } | |
1da177e4 LT |
408 | |
409 | value_set = convert_bytes_value(cval, value_set); | |
410 | buf[0] = value_set & 0xff; | |
411 | buf[1] = (value_set >> 8) & 0xff; | |
cf3f9130 | 412 | while (timeout-- > 0) |
84957a8a CL |
413 | if (snd_usb_ctl_msg(cval->mixer->chip->dev, |
414 | usb_sndctrlpipe(cval->mixer->chip->dev, 0), | |
1da177e4 LT |
415 | request, |
416 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | |
84957a8a | 417 | validx, cval->mixer->ctrlif | (cval->id << 8), |
1da177e4 LT |
418 | buf, val_len, 100) >= 0) |
419 | return 0; | |
84957a8a CL |
420 | snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
421 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type, buf[0], buf[1]); | |
1da177e4 LT |
422 | return -EINVAL; |
423 | } | |
424 | ||
86e07d34 | 425 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) |
1da177e4 | 426 | { |
7b1eda22 | 427 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
428 | } |
429 | ||
641b4879 TI |
430 | static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
431 | int index, int value) | |
1da177e4 | 432 | { |
641b4879 | 433 | int err; |
a6a33259 DM |
434 | unsigned int read_only = (channel == 0) ? |
435 | cval->master_readonly : | |
436 | cval->ch_readonly & (1 << (channel - 1)); | |
437 | ||
438 | if (read_only) { | |
439 | snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", | |
440 | __func__, channel, cval->control); | |
441 | return 0; | |
442 | } | |
443 | ||
7b1eda22 | 444 | err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, |
641b4879 TI |
445 | value); |
446 | if (err < 0) | |
447 | return err; | |
448 | cval->cached |= 1 << channel; | |
449 | cval->cache_val[index] = value; | |
450 | return 0; | |
1da177e4 LT |
451 | } |
452 | ||
7bc5ba7e TI |
453 | /* |
454 | * TLV callback for mixer volume controls | |
455 | */ | |
456 | static int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, | |
457 | unsigned int size, unsigned int __user *_tlv) | |
458 | { | |
459 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 460 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
461 | |
462 | if (size < sizeof(scale)) | |
463 | return -ENOMEM; | |
c3a3e040 JK |
464 | scale[2] = cval->dBmin; |
465 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
466 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
467 | return -EFAULT; | |
468 | return 0; | |
469 | } | |
1da177e4 LT |
470 | |
471 | /* | |
472 | * parser routines begin here... | |
473 | */ | |
474 | ||
86e07d34 | 475 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
476 | |
477 | ||
478 | /* | |
479 | * check if the input/output channel routing is enabled on the given bitmap. | |
480 | * used for mixer unit parser | |
481 | */ | |
482 | static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) | |
483 | { | |
484 | int idx = ich * num_outs + och; | |
485 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
486 | } | |
487 | ||
488 | ||
489 | /* | |
490 | * add an alsa control element | |
491 | * search and increment the index until an empty slot is found. | |
492 | * | |
493 | * if failed, give up and free the control instance. | |
494 | */ | |
495 | ||
86e07d34 | 496 | static int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl) |
1da177e4 | 497 | { |
86e07d34 | 498 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 499 | int err; |
84957a8a CL |
500 | |
501 | while (snd_ctl_find_id(state->chip->card, &kctl->id)) | |
1da177e4 | 502 | kctl->id.index++; |
84957a8a | 503 | if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) { |
1da177e4 | 504 | snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); |
6639b6c2 | 505 | return err; |
1da177e4 | 506 | } |
6639b6c2 CL |
507 | cval->elem_id = &kctl->id; |
508 | cval->next_id_elem = state->mixer->id_elems[cval->id]; | |
509 | state->mixer->id_elems[cval->id] = cval; | |
510 | return 0; | |
1da177e4 LT |
511 | } |
512 | ||
513 | ||
514 | /* | |
515 | * get a terminal name string | |
516 | */ | |
517 | ||
518 | static struct iterm_name_combo { | |
519 | int type; | |
520 | char *name; | |
521 | } iterm_names[] = { | |
522 | { 0x0300, "Output" }, | |
523 | { 0x0301, "Speaker" }, | |
524 | { 0x0302, "Headphone" }, | |
525 | { 0x0303, "HMD Audio" }, | |
526 | { 0x0304, "Desktop Speaker" }, | |
527 | { 0x0305, "Room Speaker" }, | |
528 | { 0x0306, "Com Speaker" }, | |
529 | { 0x0307, "LFE" }, | |
530 | { 0x0600, "External In" }, | |
531 | { 0x0601, "Analog In" }, | |
532 | { 0x0602, "Digital In" }, | |
533 | { 0x0603, "Line" }, | |
534 | { 0x0604, "Legacy In" }, | |
535 | { 0x0605, "IEC958 In" }, | |
536 | { 0x0606, "1394 DA Stream" }, | |
537 | { 0x0607, "1394 DV Stream" }, | |
538 | { 0x0700, "Embedded" }, | |
539 | { 0x0701, "Noise Source" }, | |
540 | { 0x0702, "Equalization Noise" }, | |
541 | { 0x0703, "CD" }, | |
542 | { 0x0704, "DAT" }, | |
543 | { 0x0705, "DCC" }, | |
544 | { 0x0706, "MiniDisk" }, | |
545 | { 0x0707, "Analog Tape" }, | |
546 | { 0x0708, "Phonograph" }, | |
547 | { 0x0709, "VCR Audio" }, | |
548 | { 0x070a, "Video Disk Audio" }, | |
549 | { 0x070b, "DVD Audio" }, | |
550 | { 0x070c, "TV Tuner Audio" }, | |
551 | { 0x070d, "Satellite Rec Audio" }, | |
552 | { 0x070e, "Cable Tuner Audio" }, | |
553 | { 0x070f, "DSS Audio" }, | |
554 | { 0x0710, "Radio Receiver" }, | |
555 | { 0x0711, "Radio Transmitter" }, | |
556 | { 0x0712, "Multi-Track Recorder" }, | |
557 | { 0x0713, "Synthesizer" }, | |
558 | { 0 }, | |
559 | }; | |
560 | ||
86e07d34 | 561 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
562 | unsigned char *name, int maxlen, int term_only) |
563 | { | |
564 | struct iterm_name_combo *names; | |
565 | ||
566 | if (iterm->name) | |
567 | return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); | |
568 | ||
569 | /* virtual type - not a real terminal */ | |
570 | if (iterm->type >> 16) { | |
571 | if (term_only) | |
572 | return 0; | |
573 | switch (iterm->type >> 16) { | |
de48c7bc | 574 | case UAC_SELECTOR_UNIT: |
1da177e4 | 575 | strcpy(name, "Selector"); return 8; |
de48c7bc | 576 | case UAC_PROCESSING_UNIT_V1: |
1da177e4 | 577 | strcpy(name, "Process Unit"); return 12; |
de48c7bc | 578 | case UAC_EXTENSION_UNIT_V1: |
1da177e4 | 579 | strcpy(name, "Ext Unit"); return 8; |
de48c7bc | 580 | case UAC_MIXER_UNIT: |
1da177e4 LT |
581 | strcpy(name, "Mixer"); return 5; |
582 | default: | |
583 | return sprintf(name, "Unit %d", iterm->id); | |
584 | } | |
585 | } | |
586 | ||
587 | switch (iterm->type & 0xff00) { | |
588 | case 0x0100: | |
589 | strcpy(name, "PCM"); return 3; | |
590 | case 0x0200: | |
591 | strcpy(name, "Mic"); return 3; | |
592 | case 0x0400: | |
593 | strcpy(name, "Headset"); return 7; | |
594 | case 0x0500: | |
595 | strcpy(name, "Phone"); return 5; | |
596 | } | |
597 | ||
598 | for (names = iterm_names; names->type; names++) | |
599 | if (names->type == iterm->type) { | |
600 | strcpy(name, names->name); | |
601 | return strlen(names->name); | |
602 | } | |
603 | return 0; | |
604 | } | |
605 | ||
606 | ||
607 | /* | |
608 | * parse the source unit recursively until it reaches to a terminal | |
609 | * or a branched unit. | |
610 | */ | |
86e07d34 | 611 | static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) |
1da177e4 | 612 | { |
09414207 | 613 | int err; |
23caaf19 | 614 | void *p1; |
1da177e4 LT |
615 | |
616 | memset(term, 0, sizeof(*term)); | |
617 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 618 | unsigned char *hdr = p1; |
1da177e4 | 619 | term->id = id; |
23caaf19 | 620 | switch (hdr[2]) { |
de48c7bc | 621 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
622 | if (state->mixer->protocol == UAC_VERSION_1) { |
623 | struct uac_input_terminal_descriptor *d = p1; | |
624 | term->type = le16_to_cpu(d->wTerminalType); | |
625 | term->channels = d->bNrChannels; | |
626 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
627 | term->name = d->iTerminal; | |
628 | } else { /* UAC_VERSION_2 */ | |
629 | struct uac2_input_terminal_descriptor *d = p1; | |
630 | term->type = le16_to_cpu(d->wTerminalType); | |
631 | term->channels = d->bNrChannels; | |
632 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
633 | term->name = d->iTerminal; | |
09414207 DM |
634 | |
635 | /* call recursively to get the clock selectors */ | |
636 | err = check_input_term(state, d->bCSourceID, term); | |
637 | if (err < 0) | |
638 | return err; | |
23caaf19 | 639 | } |
1da177e4 | 640 | return 0; |
23caaf19 DM |
641 | case UAC_FEATURE_UNIT: { |
642 | /* the header is the same for v1 and v2 */ | |
643 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 644 | id = d->bSourceID; |
1da177e4 | 645 | break; /* continue to parse */ |
23caaf19 DM |
646 | } |
647 | case UAC_MIXER_UNIT: { | |
648 | struct uac_mixer_unit_descriptor *d = p1; | |
649 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
650 | term->channels = uac_mixer_unit_bNrChannels(d); | |
651 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
652 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 653 | return 0; |
23caaf19 | 654 | } |
09414207 DM |
655 | case UAC_SELECTOR_UNIT: |
656 | case UAC2_CLOCK_SELECTOR: { | |
23caaf19 | 657 | struct uac_selector_unit_descriptor *d = p1; |
1da177e4 | 658 | /* call recursively to retrieve the channel info */ |
23caaf19 | 659 | if (check_input_term(state, d->baSourceID[0], term) < 0) |
1da177e4 | 660 | return -ENODEV; |
23caaf19 | 661 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 662 | term->id = id; |
23caaf19 | 663 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 664 | return 0; |
23caaf19 | 665 | } |
de48c7bc | 666 | case UAC_PROCESSING_UNIT_V1: |
23caaf19 DM |
667 | case UAC_EXTENSION_UNIT_V1: { |
668 | struct uac_processing_unit_descriptor *d = p1; | |
669 | if (d->bNrInPins) { | |
670 | id = d->baSourceID[0]; | |
1da177e4 LT |
671 | break; /* continue to parse */ |
672 | } | |
23caaf19 DM |
673 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
674 | term->channels = uac_processing_unit_bNrChannels(d); | |
675 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
676 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 677 | return 0; |
23caaf19 | 678 | } |
09414207 DM |
679 | case UAC2_CLOCK_SOURCE: { |
680 | struct uac_clock_source_descriptor *d = p1; | |
681 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
682 | term->id = id; | |
683 | term->name = d->iClockSource; | |
684 | return 0; | |
685 | } | |
1da177e4 LT |
686 | default: |
687 | return -ENODEV; | |
688 | } | |
689 | } | |
690 | return -ENODEV; | |
691 | } | |
692 | ||
693 | ||
694 | /* | |
695 | * Feature Unit | |
696 | */ | |
697 | ||
698 | /* feature unit control information */ | |
699 | struct usb_feature_control_info { | |
700 | const char *name; | |
701 | unsigned int type; /* control type (mute, volume, etc.) */ | |
702 | }; | |
703 | ||
704 | static struct usb_feature_control_info audio_feature_info[] = { | |
2e0281d1 DM |
705 | { "Mute", USB_MIXER_INV_BOOLEAN }, |
706 | { "Volume", USB_MIXER_S16 }, | |
1da177e4 LT |
707 | { "Tone Control - Bass", USB_MIXER_S8 }, |
708 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
709 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
710 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
2e0281d1 DM |
711 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, |
712 | { "Delay Control", USB_MIXER_U16 }, | |
713 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
714 | { "Loudness", USB_MIXER_BOOLEAN }, | |
715 | /* UAC2 specific */ | |
716 | { "Input Gain Control", USB_MIXER_U16 }, | |
717 | { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, | |
718 | { "Phase Inverter Control", USB_MIXER_BOOLEAN }, | |
1da177e4 LT |
719 | }; |
720 | ||
721 | ||
722 | /* private_free callback */ | |
86e07d34 | 723 | static void usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 724 | { |
4d572776 JJ |
725 | kfree(kctl->private_data); |
726 | kctl->private_data = NULL; | |
1da177e4 LT |
727 | } |
728 | ||
729 | ||
730 | /* | |
731 | * interface to ALSA control for feature/mixer units | |
732 | */ | |
733 | ||
734 | /* | |
735 | * retrieve the minimum and maximum values for the specified control | |
736 | */ | |
86e07d34 | 737 | static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) |
1da177e4 LT |
738 | { |
739 | /* for failsafe */ | |
740 | cval->min = default_min; | |
741 | cval->max = cval->min + 1; | |
742 | cval->res = 1; | |
c3a3e040 | 743 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
744 | |
745 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
746 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
747 | cval->initialized = 1; | |
748 | } else { | |
749 | int minchn = 0; | |
750 | if (cval->cmask) { | |
751 | int i; | |
752 | for (i = 0; i < MAX_CHANNELS; i++) | |
753 | if (cval->cmask & (1 << i)) { | |
754 | minchn = i + 1; | |
755 | break; | |
756 | } | |
757 | } | |
de48c7bc DM |
758 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
759 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
84957a8a CL |
760 | snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", |
761 | cval->id, cval->mixer->ctrlif, cval->control, cval->id); | |
1da177e4 LT |
762 | return -EINVAL; |
763 | } | |
de48c7bc | 764 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { |
1da177e4 LT |
765 | cval->res = 1; |
766 | } else { | |
767 | int last_valid_res = cval->res; | |
768 | ||
769 | while (cval->res > 1) { | |
7b1eda22 DM |
770 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
771 | (cval->control << 8) | minchn, cval->res / 2) < 0) | |
1da177e4 LT |
772 | break; |
773 | cval->res /= 2; | |
774 | } | |
de48c7bc | 775 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) |
1da177e4 LT |
776 | cval->res = last_valid_res; |
777 | } | |
778 | if (cval->res == 0) | |
779 | cval->res = 1; | |
14790f1c TI |
780 | |
781 | /* Additional checks for the proper resolution | |
782 | * | |
783 | * Some devices report smaller resolutions than actually | |
784 | * reacting. They don't return errors but simply clip | |
785 | * to the lower aligned value. | |
786 | */ | |
787 | if (cval->min + cval->res < cval->max) { | |
788 | int last_valid_res = cval->res; | |
789 | int saved, test, check; | |
641b4879 | 790 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
791 | for (;;) { |
792 | test = saved; | |
793 | if (test < cval->max) | |
794 | test += cval->res; | |
795 | else | |
796 | test -= cval->res; | |
797 | if (test < cval->min || test > cval->max || | |
641b4879 TI |
798 | set_cur_mix_value(cval, minchn, 0, test) || |
799 | get_cur_mix_raw(cval, minchn, &check)) { | |
14790f1c TI |
800 | cval->res = last_valid_res; |
801 | break; | |
802 | } | |
803 | if (test == check) | |
804 | break; | |
805 | cval->res *= 2; | |
806 | } | |
641b4879 | 807 | set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
808 | } |
809 | ||
1da177e4 LT |
810 | cval->initialized = 1; |
811 | } | |
c3a3e040 JK |
812 | |
813 | /* USB descriptions contain the dB scale in 1/256 dB unit | |
814 | * while ALSA TLV contains in 1/100 dB unit | |
815 | */ | |
816 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
817 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
818 | if (cval->dBmin > cval->dBmax) { | |
819 | /* something is wrong; assume it's either from/to 0dB */ | |
820 | if (cval->dBmin < 0) | |
821 | cval->dBmax = 0; | |
822 | else if (cval->dBmin > 0) | |
823 | cval->dBmin = 0; | |
824 | if (cval->dBmin > cval->dBmax) { | |
825 | /* totally crap, return an error */ | |
826 | return -EINVAL; | |
827 | } | |
828 | } | |
829 | ||
1da177e4 LT |
830 | return 0; |
831 | } | |
832 | ||
833 | ||
834 | /* get a feature/mixer unit info */ | |
86e07d34 | 835 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 836 | { |
86e07d34 | 837 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
838 | |
839 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
840 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
841 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
842 | else | |
843 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
844 | uinfo->count = cval->channels; | |
845 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
846 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
847 | uinfo->value.integer.min = 0; | |
848 | uinfo->value.integer.max = 1; | |
849 | } else { | |
850 | if (! cval->initialized) | |
851 | get_min_max(cval, 0); | |
852 | uinfo->value.integer.min = 0; | |
14790f1c TI |
853 | uinfo->value.integer.max = |
854 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
855 | } |
856 | return 0; | |
857 | } | |
858 | ||
859 | /* get the current value from feature/mixer unit */ | |
86e07d34 | 860 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 861 | { |
86e07d34 | 862 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
863 | int c, cnt, val, err; |
864 | ||
641b4879 | 865 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
866 | if (cval->cmask) { |
867 | cnt = 0; | |
868 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
869 | if (!(cval->cmask & (1 << c))) |
870 | continue; | |
871 | err = get_cur_mix_value(cval, c + 1, cnt, &val); | |
872 | if (err < 0) | |
873 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
874 | val = get_relative_value(cval, val); | |
875 | ucontrol->value.integer.value[cnt] = val; | |
876 | cnt++; | |
1da177e4 | 877 | } |
641b4879 | 878 | return 0; |
1da177e4 LT |
879 | } else { |
880 | /* master channel */ | |
641b4879 TI |
881 | err = get_cur_mix_value(cval, 0, 0, &val); |
882 | if (err < 0) | |
883 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1da177e4 LT |
884 | val = get_relative_value(cval, val); |
885 | ucontrol->value.integer.value[0] = val; | |
886 | } | |
887 | return 0; | |
888 | } | |
889 | ||
890 | /* put the current value to feature/mixer unit */ | |
86e07d34 | 891 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 892 | { |
86e07d34 | 893 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
894 | int c, cnt, val, oval, err; |
895 | int changed = 0; | |
896 | ||
897 | if (cval->cmask) { | |
898 | cnt = 0; | |
899 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
900 | if (!(cval->cmask & (1 << c))) |
901 | continue; | |
902 | err = get_cur_mix_value(cval, c + 1, cnt, &oval); | |
903 | if (err < 0) | |
904 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
905 | val = ucontrol->value.integer.value[cnt]; | |
906 | val = get_abs_value(cval, val); | |
907 | if (oval != val) { | |
908 | set_cur_mix_value(cval, c + 1, cnt, val); | |
909 | changed = 1; | |
1da177e4 | 910 | } |
641b4879 | 911 | cnt++; |
1da177e4 LT |
912 | } |
913 | } else { | |
914 | /* master channel */ | |
641b4879 | 915 | err = get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 916 | if (err < 0) |
641b4879 | 917 | return cval->mixer->ignore_ctl_error ? 0 : err; |
1da177e4 LT |
918 | val = ucontrol->value.integer.value[0]; |
919 | val = get_abs_value(cval, val); | |
920 | if (val != oval) { | |
641b4879 | 921 | set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
922 | changed = 1; |
923 | } | |
924 | } | |
925 | return changed; | |
926 | } | |
927 | ||
86e07d34 | 928 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
929 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
930 | .name = "", /* will be filled later manually */ | |
931 | .info = mixer_ctl_feature_info, | |
932 | .get = mixer_ctl_feature_get, | |
933 | .put = mixer_ctl_feature_put, | |
934 | }; | |
935 | ||
23caaf19 DM |
936 | /* the read-only variant */ |
937 | static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { | |
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 = NULL, | |
943 | }; | |
944 | ||
1da177e4 LT |
945 | |
946 | /* | |
947 | * build a feature control | |
948 | */ | |
949 | ||
08d1e635 TI |
950 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
951 | { | |
952 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
953 | } | |
954 | ||
99fc8645 | 955 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 956 | unsigned int ctl_mask, int control, |
23caaf19 | 957 | struct usb_audio_term *iterm, int unitid, |
a6a33259 | 958 | int readonly_mask) |
1da177e4 | 959 | { |
99fc8645 | 960 | struct uac_feature_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
961 | unsigned int len = 0; |
962 | int mapped_name = 0; | |
99fc8645 | 963 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
964 | struct snd_kcontrol *kctl; |
965 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 966 | const struct usbmix_name_map *map; |
1da177e4 LT |
967 | |
968 | control++; /* change from zero-based to 1-based value */ | |
969 | ||
65f25da4 | 970 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
971 | /* FIXME: not supported yet */ |
972 | return; | |
973 | } | |
974 | ||
c3a3e040 JK |
975 | map = find_map(state, unitid, control); |
976 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
977 | return; |
978 | ||
561b220a | 979 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
980 | if (! cval) { |
981 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
982 | return; | |
983 | } | |
84957a8a | 984 | cval->mixer = state->mixer; |
1da177e4 LT |
985 | cval->id = unitid; |
986 | cval->control = control; | |
987 | cval->cmask = ctl_mask; | |
988 | cval->val_type = audio_feature_info[control-1].type; | |
a6a33259 | 989 | if (ctl_mask == 0) { |
1da177e4 | 990 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
991 | cval->master_readonly = readonly_mask; |
992 | } else { | |
1da177e4 LT |
993 | int i, c = 0; |
994 | for (i = 0; i < 16; i++) | |
995 | if (ctl_mask & (1 << i)) | |
996 | c++; | |
997 | cval->channels = c; | |
a6a33259 | 998 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
999 | } |
1000 | ||
1001 | /* get min/max values */ | |
1002 | get_min_max(cval, 0); | |
1003 | ||
a6a33259 DM |
1004 | /* if all channels in the mask are marked read-only, make the control |
1005 | * read-only. set_cur_mix_value() will check the mask again and won't | |
1006 | * issue write commands to read-only channels. */ | |
1007 | if (cval->channels == readonly_mask) | |
23caaf19 DM |
1008 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1009 | else | |
1010 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1011 | ||
1da177e4 LT |
1012 | if (! kctl) { |
1013 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1014 | kfree(cval); | |
1015 | return; | |
1016 | } | |
1017 | kctl->private_free = usb_mixer_elem_free; | |
1018 | ||
c3a3e040 | 1019 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1020 | mapped_name = len != 0; |
1021 | if (! len && nameid) | |
c3a3e040 JK |
1022 | len = snd_usb_copy_string_desc(state, nameid, |
1023 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
1024 | |
1025 | switch (control) { | |
65f25da4 DM |
1026 | case UAC_FU_MUTE: |
1027 | case UAC_FU_VOLUME: | |
1da177e4 LT |
1028 | /* determine the control name. the rule is: |
1029 | * - if a name id is given in descriptor, use it. | |
1030 | * - if the connected input can be determined, then use the name | |
1031 | * of terminal type. | |
1032 | * - if the connected output can be determined, use it. | |
1033 | * - otherwise, anonymous name. | |
1034 | */ | |
1035 | if (! len) { | |
1036 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1037 | if (! len) | |
1038 | len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1039 | if (! len) | |
1040 | len = snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1041 | "Feature %d", unitid); | |
1042 | } | |
1043 | /* determine the stream direction: | |
1044 | * if the connected output is USB stream, then it's likely a | |
1045 | * capture stream. otherwise it should be playback (hopefully :) | |
1046 | */ | |
1047 | if (! mapped_name && ! (state->oterm.type >> 16)) { | |
1048 | if ((state->oterm.type & 0xff00) == 0x0100) { | |
08d1e635 | 1049 | len = append_ctl_name(kctl, " Capture"); |
1da177e4 | 1050 | } else { |
08d1e635 | 1051 | len = append_ctl_name(kctl, " Playback"); |
1da177e4 LT |
1052 | } |
1053 | } | |
65f25da4 | 1054 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1055 | " Switch" : " Volume"); |
65f25da4 | 1056 | if (control == UAC_FU_VOLUME) { |
7bc5ba7e TI |
1057 | kctl->tlv.c = mixer_vol_tlv; |
1058 | kctl->vd[0].access |= | |
1059 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1060 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
c3a3e040 | 1061 | check_mapped_dB(map, cval); |
7bc5ba7e | 1062 | } |
1da177e4 LT |
1063 | break; |
1064 | ||
1065 | default: | |
1066 | if (! len) | |
1067 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, | |
1068 | sizeof(kctl->id.name)); | |
1069 | break; | |
1070 | } | |
1071 | ||
2cf313ee | 1072 | /* volume control quirks */ |
27d10f56 CL |
1073 | switch (state->chip->usb_id) { |
1074 | case USB_ID(0x0471, 0x0101): | |
1075 | case USB_ID(0x0471, 0x0104): | |
1076 | case USB_ID(0x0471, 0x0105): | |
1077 | case USB_ID(0x0672, 0x1041): | |
2cf313ee AF |
1078 | /* quirk for UDA1321/N101. |
1079 | * note that detection between firmware 2.1.1.7 (N101) | |
1080 | * and later 2.1.1.21 is not very clear from datasheets. | |
1081 | * I hope that the min value is -15360 for newer firmware --jk | |
1082 | */ | |
27d10f56 CL |
1083 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && |
1084 | cval->min == -15616) { | |
2cf313ee AF |
1085 | snd_printk(KERN_INFO |
1086 | "set volume quirk for UDA1321/N101 chip\n"); | |
27d10f56 CL |
1087 | cval->max = -256; |
1088 | } | |
2cf313ee AF |
1089 | break; |
1090 | ||
1091 | case USB_ID(0x046d, 0x09a4): | |
1092 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
1093 | snd_printk(KERN_INFO | |
1094 | "set volume quirk for QuickCam E3500\n"); | |
1095 | cval->min = 6080; | |
1096 | cval->max = 8768; | |
1097 | cval->res = 192; | |
1098 | } | |
1099 | break; | |
1100 | ||
1da177e4 LT |
1101 | } |
1102 | ||
1103 | snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", | |
1104 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); | |
84957a8a | 1105 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1106 | } |
1107 | ||
1108 | ||
1109 | ||
1110 | /* | |
1111 | * parse a feature unit | |
1112 | * | |
1113 | * most of controlls are defined here. | |
1114 | */ | |
28e1b773 | 1115 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) |
1da177e4 LT |
1116 | { |
1117 | int channels, i, j; | |
86e07d34 | 1118 | struct usb_audio_term iterm; |
1da177e4 LT |
1119 | unsigned int master_bits, first_ch_bits; |
1120 | int err, csize; | |
23caaf19 DM |
1121 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1122 | __u8 *bmaControls; | |
1123 | ||
1124 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1125 | csize = hdr->bControlSize; | |
1126 | channels = (hdr->bLength - 7) / csize - 1; | |
1127 | bmaControls = hdr->bmaControls; | |
1128 | } else { | |
1129 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
1130 | csize = 4; | |
e8d0fee7 | 1131 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 DM |
1132 | bmaControls = ftr->bmaControls; |
1133 | } | |
1da177e4 | 1134 | |
23caaf19 | 1135 | if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { |
de48c7bc | 1136 | snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); |
1da177e4 LT |
1137 | return -EINVAL; |
1138 | } | |
1139 | ||
1140 | /* parse the source unit */ | |
23caaf19 | 1141 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1142 | return err; |
1143 | ||
1144 | /* determine the input source type and name */ | |
23caaf19 | 1145 | if (check_input_term(state, hdr->bSourceID, &iterm) < 0) |
1da177e4 LT |
1146 | return -EINVAL; |
1147 | ||
23caaf19 | 1148 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1149 | /* master configuration quirks */ |
1150 | switch (state->chip->usb_id) { | |
1151 | case USB_ID(0x08bb, 0x2702): | |
1152 | snd_printk(KERN_INFO | |
1153 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
1154 | /* disable non-functional volume control */ | |
65f25da4 | 1155 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 JK |
1156 | break; |
1157 | } | |
1da177e4 | 1158 | if (channels > 0) |
23caaf19 | 1159 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1160 | else |
1161 | first_ch_bits = 0; | |
23caaf19 DM |
1162 | |
1163 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1164 | /* check all control types */ | |
1165 | for (i = 0; i < 10; i++) { | |
1166 | unsigned int ch_bits = 0; | |
1167 | for (j = 0; j < channels; j++) { | |
1168 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
1169 | if (mask & (1 << i)) | |
1170 | ch_bits |= (1 << j); | |
1171 | } | |
1172 | /* audio class v1 controls are never read-only */ | |
1173 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ | |
1174 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); | |
1175 | if (master_bits & (1 << i)) | |
1176 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); | |
1177 | } | |
1178 | } else { /* UAC_VERSION_2 */ | |
1179 | for (i = 0; i < 30/2; i++) { | |
1180 | /* From the USB Audio spec v2.0: | |
1181 | bmaControls() is a (ch+1)-element array of 4-byte bitmaps, | |
1182 | each containing a set of bit pairs. If a Control is present, | |
1183 | it must be Host readable. If a certain Control is not | |
1184 | present then the bit pair must be set to 0b00. | |
1185 | If a Control is present but read-only, the bit pair must be | |
1186 | set to 0b01. If a Control is also Host programmable, the bit | |
1187 | pair must be set to 0b11. The value 0b10 is not allowed. */ | |
1188 | unsigned int ch_bits = 0; | |
1189 | unsigned int ch_read_only = 0; | |
1190 | ||
1191 | for (j = 0; j < channels; j++) { | |
1192 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
dcbe7bcf | 1193 | if (uac2_control_is_readable(mask, i)) { |
23caaf19 | 1194 | ch_bits |= (1 << j); |
dcbe7bcf | 1195 | if (!uac2_control_is_writeable(mask, i)) |
23caaf19 DM |
1196 | ch_read_only |= (1 << j); |
1197 | } | |
1198 | } | |
1199 | ||
a6a33259 DM |
1200 | /* NOTE: build_feature_ctl() will mark the control read-only if all channels |
1201 | * are marked read-only in the descriptors. Otherwise, the control will be | |
1202 | * reported as writeable, but the driver will not actually issue a write | |
1203 | * command for read-only channels */ | |
23caaf19 | 1204 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ |
a6a33259 | 1205 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); |
dcbe7bcf | 1206 | if (uac2_control_is_readable(master_bits, i)) |
23caaf19 | 1207 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
dcbe7bcf | 1208 | !uac2_control_is_writeable(master_bits, i)); |
1da177e4 | 1209 | } |
1da177e4 LT |
1210 | } |
1211 | ||
1212 | return 0; | |
1213 | } | |
1214 | ||
1215 | ||
1216 | /* | |
1217 | * Mixer Unit | |
1218 | */ | |
1219 | ||
1220 | /* | |
1221 | * build a mixer unit control | |
1222 | * | |
1223 | * the callbacks are identical with feature unit. | |
1224 | * input channel number (zero based) is given in control field instead. | |
1225 | */ | |
1226 | ||
99fc8645 DM |
1227 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1228 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1229 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1230 | struct usb_audio_term *iterm) |
1da177e4 | 1231 | { |
86e07d34 | 1232 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1233 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1234 | unsigned int i, len; |
86e07d34 | 1235 | struct snd_kcontrol *kctl; |
c3a3e040 | 1236 | const struct usbmix_name_map *map; |
1da177e4 | 1237 | |
c3a3e040 JK |
1238 | map = find_map(state, unitid, 0); |
1239 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1240 | return; |
1241 | ||
561b220a | 1242 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1243 | if (! cval) |
1244 | return; | |
1245 | ||
84957a8a | 1246 | cval->mixer = state->mixer; |
1da177e4 LT |
1247 | cval->id = unitid; |
1248 | cval->control = in_ch + 1; /* based on 1 */ | |
1249 | cval->val_type = USB_MIXER_S16; | |
1250 | for (i = 0; i < num_outs; i++) { | |
23caaf19 | 1251 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { |
1da177e4 LT |
1252 | cval->cmask |= (1 << i); |
1253 | cval->channels++; | |
1254 | } | |
1255 | } | |
1256 | ||
1257 | /* get min/max values */ | |
1258 | get_min_max(cval, 0); | |
1259 | ||
1260 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1261 | if (! kctl) { | |
1262 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1263 | kfree(cval); | |
1264 | return; | |
1265 | } | |
1266 | kctl->private_free = usb_mixer_elem_free; | |
1267 | ||
c3a3e040 | 1268 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1269 | if (! len) |
1270 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); | |
1271 | if (! len) | |
1272 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); | |
08d1e635 | 1273 | append_ctl_name(kctl, " Volume"); |
1da177e4 LT |
1274 | |
1275 | snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", | |
1276 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1277 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1278 | } |
1279 | ||
1280 | ||
1281 | /* | |
1282 | * parse a mixer unit | |
1283 | */ | |
99fc8645 | 1284 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1285 | { |
99fc8645 | 1286 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1287 | struct usb_audio_term iterm; |
1da177e4 LT |
1288 | int input_pins, num_ins, num_outs; |
1289 | int pin, ich, err; | |
1290 | ||
99fc8645 | 1291 | if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { |
1da177e4 LT |
1292 | snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); |
1293 | return -EINVAL; | |
1294 | } | |
1295 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
99fc8645 | 1296 | if (desc->bLength <= 10 + input_pins) { |
1da177e4 LT |
1297 | snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); |
1298 | return 0; | |
1299 | } | |
1300 | ||
1301 | num_ins = 0; | |
1302 | ich = 0; | |
1303 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1304 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 LT |
1305 | if (err < 0) |
1306 | return err; | |
99fc8645 | 1307 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1308 | if (err < 0) |
1309 | return err; | |
1310 | num_ins += iterm.channels; | |
1311 | for (; ich < num_ins; ++ich) { | |
1312 | int och, ich_has_controls = 0; | |
1313 | ||
1314 | for (och = 0; och < num_outs; ++och) { | |
23caaf19 | 1315 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), |
1da177e4 LT |
1316 | ich, och, num_outs)) { |
1317 | ich_has_controls = 1; | |
1318 | break; | |
1319 | } | |
1320 | } | |
1321 | if (ich_has_controls) | |
1322 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1323 | unitid, &iterm); | |
1324 | } | |
1325 | } | |
1326 | return 0; | |
1327 | } | |
1328 | ||
1329 | ||
1330 | /* | |
1331 | * Processing Unit / Extension Unit | |
1332 | */ | |
1333 | ||
1334 | /* get callback for processing/extension unit */ | |
86e07d34 | 1335 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1336 | { |
86e07d34 | 1337 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1338 | int err, val; |
1339 | ||
1340 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
84957a8a | 1341 | if (err < 0 && cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1342 | ucontrol->value.integer.value[0] = cval->min; |
1343 | return 0; | |
1344 | } | |
1345 | if (err < 0) | |
1346 | return err; | |
1347 | val = get_relative_value(cval, val); | |
1348 | ucontrol->value.integer.value[0] = val; | |
1349 | return 0; | |
1350 | } | |
1351 | ||
1352 | /* put callback for processing/extension unit */ | |
86e07d34 | 1353 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1354 | { |
86e07d34 | 1355 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1356 | int val, oval, err; |
1357 | ||
1358 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
1359 | if (err < 0) { | |
84957a8a | 1360 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1361 | return 0; |
1362 | return err; | |
1363 | } | |
1364 | val = ucontrol->value.integer.value[0]; | |
1365 | val = get_abs_value(cval, val); | |
1366 | if (val != oval) { | |
1367 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1368 | return 1; | |
1369 | } | |
1370 | return 0; | |
1371 | } | |
1372 | ||
1373 | /* alsa control interface for processing/extension unit */ | |
86e07d34 | 1374 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1375 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1376 | .name = "", /* will be filled later */ | |
1377 | .info = mixer_ctl_feature_info, | |
1378 | .get = mixer_ctl_procunit_get, | |
1379 | .put = mixer_ctl_procunit_put, | |
1380 | }; | |
1381 | ||
1382 | ||
1383 | /* | |
1384 | * predefined data for processing units | |
1385 | */ | |
1386 | struct procunit_value_info { | |
1387 | int control; | |
1388 | char *suffix; | |
1389 | int val_type; | |
1390 | int min_value; | |
1391 | }; | |
1392 | ||
1393 | struct procunit_info { | |
1394 | int type; | |
1395 | char *name; | |
1396 | struct procunit_value_info *values; | |
1397 | }; | |
1398 | ||
1399 | static struct procunit_value_info updown_proc_info[] = { | |
65f25da4 DM |
1400 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1401 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1402 | { 0 } |
1403 | }; | |
1404 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
1405 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1406 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1407 | { 0 } |
1408 | }; | |
1409 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
1410 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1411 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
1412 | { 0 } |
1413 | }; | |
1414 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
1415 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1416 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1417 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1418 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
1419 | { 0 } |
1420 | }; | |
1421 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
1422 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1423 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1424 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1425 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
1426 | { 0 } |
1427 | }; | |
1428 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
1429 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1430 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
1431 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
1432 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1433 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
1434 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
1435 | { 0 } |
1436 | }; | |
1437 | ||
1438 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
1439 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
1440 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1441 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
1442 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
1443 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
1444 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
1445 | { 0 }, |
1446 | }; | |
7d2b451e SK |
1447 | /* |
1448 | * predefined data for extension units | |
1449 | */ | |
1450 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1451 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1452 | { 0 } | |
7d2b451e SK |
1453 | }; |
1454 | static struct procunit_value_info clock_source_xu_info[] = { | |
1455 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1456 | { 0 } | |
1457 | }; | |
1458 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1459 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1460 | { 0 } | |
1461 | }; | |
1462 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1463 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1464 | { 0 } | |
1465 | }; | |
1466 | static struct procunit_info extunits[] = { | |
1467 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1468 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1469 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1470 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1471 | { 0 } | |
1472 | }; | |
1da177e4 LT |
1473 | /* |
1474 | * build a processing/extension unit | |
1475 | */ | |
99fc8645 | 1476 | static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) |
1da177e4 | 1477 | { |
99fc8645 DM |
1478 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1479 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1480 | struct usb_mixer_elem_info *cval; |
1481 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1482 | int i, err, nameid, type, len; |
1483 | struct procunit_info *info; | |
1484 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1485 | const struct usbmix_name_map *map; |
1da177e4 LT |
1486 | static struct procunit_value_info default_value_info[] = { |
1487 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1488 | { 0 } | |
1489 | }; | |
1490 | static struct procunit_info default_info = { | |
1491 | 0, NULL, default_value_info | |
1492 | }; | |
1493 | ||
23caaf19 DM |
1494 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1495 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
1da177e4 LT |
1496 | snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); |
1497 | return -EINVAL; | |
1498 | } | |
1499 | ||
1500 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1501 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1502 | return err; |
1503 | } | |
1504 | ||
99fc8645 | 1505 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1506 | for (info = list; info && info->type; info++) |
1507 | if (info->type == type) | |
1508 | break; | |
1509 | if (! info || ! info->type) | |
1510 | info = &default_info; | |
1511 | ||
1512 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1513 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 DM |
1514 | |
1515 | if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) | |
1da177e4 | 1516 | continue; |
c3a3e040 JK |
1517 | map = find_map(state, unitid, valinfo->control); |
1518 | if (check_ignored_ctl(map)) | |
1da177e4 | 1519 | continue; |
561b220a | 1520 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1521 | if (! cval) { |
1522 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1523 | return -ENOMEM; | |
1524 | } | |
84957a8a | 1525 | cval->mixer = state->mixer; |
1da177e4 LT |
1526 | cval->id = unitid; |
1527 | cval->control = valinfo->control; | |
1528 | cval->val_type = valinfo->val_type; | |
1529 | cval->channels = 1; | |
1530 | ||
1531 | /* get min/max values */ | |
65f25da4 | 1532 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
23caaf19 | 1533 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1534 | /* FIXME: hard-coded */ |
1535 | cval->min = 1; | |
99fc8645 | 1536 | cval->max = control_spec[0]; |
1da177e4 LT |
1537 | cval->res = 1; |
1538 | cval->initialized = 1; | |
7d2b451e SK |
1539 | } else { |
1540 | if (type == USB_XU_CLOCK_RATE) { | |
1541 | /* E-Mu USB 0404/0202/TrackerPre | |
1542 | * samplerate control quirk | |
1543 | */ | |
1544 | cval->min = 0; | |
1545 | cval->max = 5; | |
1546 | cval->res = 1; | |
1547 | cval->initialized = 1; | |
1548 | } else | |
1549 | get_min_max(cval, valinfo->min_value); | |
1550 | } | |
1da177e4 LT |
1551 | |
1552 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
1553 | if (! kctl) { | |
1554 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1555 | kfree(cval); | |
1556 | return -ENOMEM; | |
1557 | } | |
1558 | kctl->private_free = usb_mixer_elem_free; | |
1559 | ||
c3a3e040 JK |
1560 | if (check_mapped_name(map, kctl->id.name, |
1561 | sizeof(kctl->id.name))) | |
1562 | /* nothing */ ; | |
1da177e4 LT |
1563 | else if (info->name) |
1564 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); | |
1565 | else { | |
23caaf19 | 1566 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1567 | len = 0; |
1568 | if (nameid) | |
1569 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1570 | if (! len) | |
1571 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); | |
1572 | } | |
08d1e635 TI |
1573 | append_ctl_name(kctl, " "); |
1574 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 LT |
1575 | |
1576 | snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", | |
1577 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1578 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1579 | return err; |
1580 | } | |
1581 | return 0; | |
1582 | } | |
1583 | ||
1584 | ||
99fc8645 | 1585 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1586 | { |
99fc8645 | 1587 | return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); |
1da177e4 LT |
1588 | } |
1589 | ||
99fc8645 | 1590 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1591 | { |
99fc8645 DM |
1592 | /* Note that we parse extension units with processing unit descriptors. |
1593 | * That's ok as the layout is the same */ | |
1594 | return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); | |
1da177e4 LT |
1595 | } |
1596 | ||
1597 | ||
1598 | /* | |
1599 | * Selector Unit | |
1600 | */ | |
1601 | ||
1602 | /* info callback for selector unit | |
1603 | * use an enumerator type for routing | |
1604 | */ | |
86e07d34 | 1605 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 1606 | { |
86e07d34 | 1607 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1608 | char **itemlist = (char **)kcontrol->private_value; |
1609 | ||
5e246b85 TI |
1610 | if (snd_BUG_ON(!itemlist)) |
1611 | return -EINVAL; | |
1da177e4 LT |
1612 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
1613 | uinfo->count = 1; | |
1614 | uinfo->value.enumerated.items = cval->max; | |
1615 | if ((int)uinfo->value.enumerated.item >= cval->max) | |
1616 | uinfo->value.enumerated.item = cval->max - 1; | |
1617 | strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]); | |
1618 | return 0; | |
1619 | } | |
1620 | ||
1621 | /* get callback for selector unit */ | |
86e07d34 | 1622 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1623 | { |
86e07d34 | 1624 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1625 | int val, err; |
1626 | ||
09414207 | 1627 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 1628 | if (err < 0) { |
84957a8a | 1629 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1630 | ucontrol->value.enumerated.item[0] = 0; |
1631 | return 0; | |
1632 | } | |
1633 | return err; | |
1634 | } | |
1635 | val = get_relative_value(cval, val); | |
1636 | ucontrol->value.enumerated.item[0] = val; | |
1637 | return 0; | |
1638 | } | |
1639 | ||
1640 | /* put callback for selector unit */ | |
86e07d34 | 1641 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1642 | { |
86e07d34 | 1643 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1644 | int val, oval, err; |
1645 | ||
09414207 | 1646 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
1da177e4 | 1647 | if (err < 0) { |
84957a8a | 1648 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1649 | return 0; |
1650 | return err; | |
1651 | } | |
1652 | val = ucontrol->value.enumerated.item[0]; | |
1653 | val = get_abs_value(cval, val); | |
1654 | if (val != oval) { | |
09414207 | 1655 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
1656 | return 1; |
1657 | } | |
1658 | return 0; | |
1659 | } | |
1660 | ||
1661 | /* alsa control interface for selector unit */ | |
86e07d34 | 1662 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
1663 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1664 | .name = "", /* will be filled later */ | |
1665 | .info = mixer_ctl_selector_info, | |
1666 | .get = mixer_ctl_selector_get, | |
1667 | .put = mixer_ctl_selector_put, | |
1668 | }; | |
1669 | ||
1670 | ||
1671 | /* private free callback. | |
1672 | * free both private_data and private_value | |
1673 | */ | |
86e07d34 | 1674 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
1675 | { |
1676 | int i, num_ins = 0; | |
1677 | ||
1678 | if (kctl->private_data) { | |
86e07d34 | 1679 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
1680 | num_ins = cval->max; |
1681 | kfree(cval); | |
1682 | kctl->private_data = NULL; | |
1683 | } | |
1684 | if (kctl->private_value) { | |
1685 | char **itemlist = (char **)kctl->private_value; | |
1686 | for (i = 0; i < num_ins; i++) | |
1687 | kfree(itemlist[i]); | |
1688 | kfree(itemlist); | |
1689 | kctl->private_value = 0; | |
1690 | } | |
1691 | } | |
1692 | ||
1693 | /* | |
1694 | * parse a selector unit | |
1695 | */ | |
99fc8645 | 1696 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1697 | { |
99fc8645 | 1698 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1699 | unsigned int i, nameid, len; |
1700 | int err; | |
86e07d34 TI |
1701 | struct usb_mixer_elem_info *cval; |
1702 | struct snd_kcontrol *kctl; | |
c3a3e040 | 1703 | const struct usbmix_name_map *map; |
1da177e4 LT |
1704 | char **namelist; |
1705 | ||
99fc8645 | 1706 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
1da177e4 LT |
1707 | snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); |
1708 | return -EINVAL; | |
1709 | } | |
1710 | ||
99fc8645 DM |
1711 | for (i = 0; i < desc->bNrInPins; i++) { |
1712 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
1713 | return err; |
1714 | } | |
1715 | ||
99fc8645 | 1716 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
1717 | return 0; |
1718 | ||
c3a3e040 JK |
1719 | map = find_map(state, unitid, 0); |
1720 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1721 | return 0; |
1722 | ||
561b220a | 1723 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1724 | if (! cval) { |
1725 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1726 | return -ENOMEM; | |
1727 | } | |
84957a8a | 1728 | cval->mixer = state->mixer; |
1da177e4 LT |
1729 | cval->id = unitid; |
1730 | cval->val_type = USB_MIXER_U8; | |
1731 | cval->channels = 1; | |
1732 | cval->min = 1; | |
99fc8645 | 1733 | cval->max = desc->bNrInPins; |
1da177e4 LT |
1734 | cval->res = 1; |
1735 | cval->initialized = 1; | |
1736 | ||
09414207 DM |
1737 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
1738 | cval->control = UAC2_CX_CLOCK_SELECTOR; | |
1739 | else | |
1740 | cval->control = 0; | |
1741 | ||
99fc8645 | 1742 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
1da177e4 LT |
1743 | if (! namelist) { |
1744 | snd_printk(KERN_ERR "cannot malloc\n"); | |
1745 | kfree(cval); | |
1746 | return -ENOMEM; | |
1747 | } | |
1748 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 1749 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 1750 | struct usb_audio_term iterm; |
1da177e4 LT |
1751 | len = 0; |
1752 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
1753 | if (! namelist[i]) { | |
1754 | snd_printk(KERN_ERR "cannot malloc\n"); | |
7fbe3ca5 | 1755 | while (i--) |
1da177e4 LT |
1756 | kfree(namelist[i]); |
1757 | kfree(namelist); | |
1758 | kfree(cval); | |
1759 | return -ENOMEM; | |
1760 | } | |
8e062ec7 CL |
1761 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
1762 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 1763 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
1764 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
1765 | if (! len) | |
1766 | sprintf(namelist[i], "Input %d", i); | |
1767 | } | |
1768 | ||
1769 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
1770 | if (! kctl) { | |
1771 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
878b4789 | 1772 | kfree(namelist); |
1da177e4 LT |
1773 | kfree(cval); |
1774 | return -ENOMEM; | |
1775 | } | |
1776 | kctl->private_value = (unsigned long)namelist; | |
1777 | kctl->private_free = usb_mixer_selector_elem_free; | |
1778 | ||
99fc8645 | 1779 | nameid = uac_selector_unit_iSelector(desc); |
c3a3e040 | 1780 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1781 | if (len) |
1782 | ; | |
1783 | else if (nameid) | |
1784 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1785 | else { | |
1786 | len = get_term_name(state, &state->oterm, | |
1787 | kctl->id.name, sizeof(kctl->id.name), 0); | |
1788 | if (! len) | |
1789 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); | |
1790 | ||
09414207 DM |
1791 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
1792 | append_ctl_name(kctl, " Clock Source"); | |
1793 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 1794 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 1795 | else |
08d1e635 | 1796 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
1797 | } |
1798 | ||
1799 | snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", | |
99fc8645 | 1800 | cval->id, kctl->id.name, desc->bNrInPins); |
84957a8a | 1801 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1802 | return err; |
1803 | ||
1804 | return 0; | |
1805 | } | |
1806 | ||
1807 | ||
1808 | /* | |
1809 | * parse an audio unit recursively | |
1810 | */ | |
1811 | ||
86e07d34 | 1812 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
1813 | { |
1814 | unsigned char *p1; | |
1815 | ||
1816 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
1817 | return 0; /* the unit already visited */ | |
1818 | ||
1819 | p1 = find_audio_control_unit(state, unitid); | |
1820 | if (!p1) { | |
1821 | snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); | |
1822 | return -EINVAL; | |
1823 | } | |
1824 | ||
1825 | switch (p1[2]) { | |
de48c7bc | 1826 | case UAC_INPUT_TERMINAL: |
09414207 | 1827 | case UAC2_CLOCK_SOURCE: |
1da177e4 | 1828 | return 0; /* NOP */ |
de48c7bc | 1829 | case UAC_MIXER_UNIT: |
1da177e4 | 1830 | return parse_audio_mixer_unit(state, unitid, p1); |
de48c7bc | 1831 | case UAC_SELECTOR_UNIT: |
09414207 | 1832 | case UAC2_CLOCK_SELECTOR: |
1da177e4 | 1833 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 1834 | case UAC_FEATURE_UNIT: |
1da177e4 | 1835 | return parse_audio_feature_unit(state, unitid, p1); |
de48c7bc | 1836 | case UAC_PROCESSING_UNIT_V1: |
23caaf19 DM |
1837 | /* UAC2_EFFECT_UNIT has the same value */ |
1838 | if (state->mixer->protocol == UAC_VERSION_1) | |
1839 | return parse_audio_processing_unit(state, unitid, p1); | |
1840 | else | |
1841 | return 0; /* FIXME - effect units not implemented yet */ | |
de48c7bc | 1842 | case UAC_EXTENSION_UNIT_V1: |
23caaf19 DM |
1843 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
1844 | if (state->mixer->protocol == UAC_VERSION_1) | |
1845 | return parse_audio_extension_unit(state, unitid, p1); | |
1846 | else /* UAC_VERSION_2 */ | |
1847 | return parse_audio_processing_unit(state, unitid, p1); | |
1da177e4 LT |
1848 | default: |
1849 | snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1850 | return -EINVAL; | |
1851 | } | |
1852 | } | |
1853 | ||
84957a8a CL |
1854 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
1855 | { | |
6639b6c2 CL |
1856 | kfree(mixer->id_elems); |
1857 | if (mixer->urb) { | |
1858 | kfree(mixer->urb->transfer_buffer); | |
1859 | usb_free_urb(mixer->urb); | |
1860 | } | |
68df9de1 | 1861 | usb_free_urb(mixer->rc_urb); |
b259b10c | 1862 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
1863 | kfree(mixer); |
1864 | } | |
1865 | ||
86e07d34 | 1866 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
1867 | { |
1868 | struct usb_mixer_interface *mixer = device->device_data; | |
1869 | snd_usb_mixer_free(mixer); | |
1870 | return 0; | |
1871 | } | |
1872 | ||
1da177e4 LT |
1873 | /* |
1874 | * create mixer controls | |
1875 | * | |
de48c7bc | 1876 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 1877 | */ |
84957a8a | 1878 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 1879 | { |
86e07d34 | 1880 | struct mixer_build state; |
1da177e4 LT |
1881 | int err; |
1882 | const struct usbmix_ctl_map *map; | |
84957a8a | 1883 | struct usb_host_interface *hostif; |
23caaf19 | 1884 | void *p; |
1da177e4 | 1885 | |
84957a8a | 1886 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; |
1da177e4 | 1887 | memset(&state, 0, sizeof(state)); |
84957a8a CL |
1888 | state.chip = mixer->chip; |
1889 | state.mixer = mixer; | |
1da177e4 LT |
1890 | state.buffer = hostif->extra; |
1891 | state.buflen = hostif->extralen; | |
1da177e4 LT |
1892 | |
1893 | /* check the mapping table */ | |
27d10f56 CL |
1894 | for (map = usbmix_ctl_maps; map->id; map++) { |
1895 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 1896 | state.map = map->map; |
8e062ec7 | 1897 | state.selector_map = map->selector_map; |
84957a8a | 1898 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
1899 | break; |
1900 | } | |
1901 | } | |
1da177e4 | 1902 | |
23caaf19 DM |
1903 | p = NULL; |
1904 | while ((p = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, p, UAC_OUTPUT_TERMINAL)) != NULL) { | |
1905 | if (mixer->protocol == UAC_VERSION_1) { | |
1906 | struct uac_output_terminal_descriptor_v1 *desc = p; | |
1907 | ||
1908 | if (desc->bLength < sizeof(*desc)) | |
1909 | continue; /* invalid descriptor? */ | |
1910 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
1911 | state.oterm.id = desc->bTerminalID; | |
1912 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1913 | state.oterm.name = desc->iTerminal; | |
1914 | err = parse_audio_unit(&state, desc->bSourceID); | |
1915 | if (err < 0) | |
1916 | return err; | |
1917 | } else { /* UAC_VERSION_2 */ | |
1918 | struct uac2_output_terminal_descriptor *desc = p; | |
1919 | ||
1920 | if (desc->bLength < sizeof(*desc)) | |
1921 | continue; /* invalid descriptor? */ | |
1922 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
1923 | state.oterm.id = desc->bTerminalID; | |
1924 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1925 | state.oterm.name = desc->iTerminal; | |
1926 | err = parse_audio_unit(&state, desc->bSourceID); | |
1927 | if (err < 0) | |
1928 | return err; | |
09414207 DM |
1929 | |
1930 | /* for UAC2, use the same approach to also add the clock selectors */ | |
1931 | err = parse_audio_unit(&state, desc->bCSourceID); | |
1932 | if (err < 0) | |
1933 | return err; | |
23caaf19 | 1934 | } |
1da177e4 | 1935 | } |
23caaf19 | 1936 | |
1da177e4 LT |
1937 | return 0; |
1938 | } | |
84957a8a | 1939 | |
7b1eda22 | 1940 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 1941 | { |
86e07d34 | 1942 | struct usb_mixer_elem_info *info; |
6639b6c2 CL |
1943 | |
1944 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) | |
1945 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
1946 | info->elem_id); | |
1947 | } | |
1948 | ||
ebfdeea3 JK |
1949 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
1950 | int unitid, | |
1951 | struct usb_mixer_elem_info *cval) | |
1952 | { | |
1953 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", | |
1954 | "S8", "U8", "S16", "U16"}; | |
1955 | snd_iprintf(buffer, " Unit: %i\n", unitid); | |
1956 | if (cval->elem_id) | |
1957 | snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", | |
1958 | cval->elem_id->name, cval->elem_id->index); | |
1959 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " | |
1960 | "channels=%i, type=\"%s\"\n", cval->id, | |
1961 | cval->control, cval->cmask, cval->channels, | |
1962 | val_types[cval->val_type]); | |
1963 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
1964 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
1965 | } | |
1966 | ||
1967 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
1968 | struct snd_info_buffer *buffer) | |
1969 | { | |
1970 | struct snd_usb_audio *chip = entry->private_data; | |
1971 | struct usb_mixer_interface *mixer; | |
1972 | struct usb_mixer_elem_info *cval; | |
1973 | int unitid; | |
1974 | ||
1975 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
1976 | snd_iprintf(buffer, | |
7affdc17 JK |
1977 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
1978 | chip->usb_id, mixer->ctrlif, | |
1979 | mixer->ignore_ctl_error); | |
ebfdeea3 JK |
1980 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
1981 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
1982 | for (cval = mixer->id_elems[unitid]; cval; | |
1983 | cval = cval->next_id_elem) | |
1984 | snd_usb_mixer_dump_cval(buffer, unitid, cval); | |
1985 | } | |
1986 | } | |
1987 | } | |
1988 | ||
e213e9cf DM |
1989 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
1990 | int attribute, int value, int index) | |
1991 | { | |
1992 | struct usb_mixer_elem_info *info; | |
1993 | __u8 unitid = (index >> 8) & 0xff; | |
1994 | __u8 control = (value >> 8) & 0xff; | |
1995 | __u8 channel = value & 0xff; | |
1996 | ||
1997 | if (channel >= MAX_CHANNELS) { | |
1998 | snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", | |
1999 | __func__, channel); | |
2000 | return; | |
2001 | } | |
2002 | ||
2003 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { | |
2004 | if (info->control != control) | |
2005 | continue; | |
2006 | ||
2007 | switch (attribute) { | |
2008 | case UAC2_CS_CUR: | |
2009 | /* invalidate cache, so the value is read from the device */ | |
2010 | if (channel) | |
2011 | info->cached &= ~(1 << channel); | |
2012 | else /* master channel */ | |
2013 | info->cached = 0; | |
2014 | ||
2015 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2016 | info->elem_id); | |
2017 | break; | |
2018 | ||
2019 | case UAC2_CS_RANGE: | |
2020 | /* TODO */ | |
2021 | break; | |
2022 | ||
2023 | case UAC2_CS_MEM: | |
2024 | /* TODO */ | |
2025 | break; | |
2026 | ||
2027 | default: | |
2028 | snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", | |
2029 | attribute); | |
2030 | break; | |
2031 | } /* switch */ | |
2032 | } | |
2033 | } | |
2034 | ||
2035 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2036 | { |
2037 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf DM |
2038 | int len = urb->actual_length; |
2039 | ||
2040 | if (urb->status != 0) | |
2041 | goto requeue; | |
6639b6c2 | 2042 | |
e213e9cf DM |
2043 | if (mixer->protocol == UAC_VERSION_1) { |
2044 | struct uac1_status_word *status; | |
6639b6c2 | 2045 | |
e213e9cf DM |
2046 | for (status = urb->transfer_buffer; |
2047 | len >= sizeof(*status); | |
2048 | len -= sizeof(*status), status++) { | |
6639b6c2 | 2049 | snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", |
e213e9cf DM |
2050 | status->bStatusType, |
2051 | status->bOriginator); | |
2052 | ||
6639b6c2 | 2053 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2054 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2055 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2056 | continue; |
e213e9cf DM |
2057 | |
2058 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2059 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2060 | else |
e213e9cf DM |
2061 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2062 | } | |
2063 | } else { /* UAC_VERSION_2 */ | |
2064 | struct uac2_interrupt_data_msg *msg; | |
2065 | ||
2066 | for (msg = urb->transfer_buffer; | |
2067 | len >= sizeof(*msg); | |
2068 | len -= sizeof(*msg), msg++) { | |
2069 | /* drop vendor specific and endpoint requests */ | |
2070 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2071 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2072 | continue; | |
2073 | ||
2074 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2075 | le16_to_cpu(msg->wValue), | |
2076 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2077 | } |
2078 | } | |
e213e9cf DM |
2079 | |
2080 | requeue: | |
6639b6c2 CL |
2081 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) { |
2082 | urb->dev = mixer->chip->dev; | |
2083 | usb_submit_urb(urb, GFP_ATOMIC); | |
2084 | } | |
2085 | } | |
2086 | ||
2087 | /* create the handler for the optional status interrupt endpoint */ | |
2088 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2089 | { | |
2090 | struct usb_host_interface *hostif; | |
2091 | struct usb_endpoint_descriptor *ep; | |
2092 | void *transfer_buffer; | |
2093 | int buffer_length; | |
2094 | unsigned int epnum; | |
2095 | ||
2096 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; | |
2097 | /* we need one interrupt input endpoint */ | |
2098 | if (get_iface_desc(hostif)->bNumEndpoints < 1) | |
2099 | return 0; | |
2100 | ep = get_endpoint(hostif, 0); | |
913ae5a2 | 2101 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2102 | return 0; |
2103 | ||
42a6e66f | 2104 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2105 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2106 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2107 | if (!transfer_buffer) | |
2108 | return -ENOMEM; | |
2109 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2110 | if (!mixer->urb) { | |
2111 | kfree(transfer_buffer); | |
2112 | return -ENOMEM; | |
2113 | } | |
2114 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2115 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2116 | transfer_buffer, buffer_length, | |
e213e9cf | 2117 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2118 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2119 | return 0; | |
2120 | } | |
2121 | ||
7a9b8063 TI |
2122 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2123 | int ignore_error) | |
84957a8a | 2124 | { |
86e07d34 | 2125 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2126 | .dev_free = snd_usb_mixer_dev_free |
2127 | }; | |
2128 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2129 | struct snd_info_entry *entry; |
7b8a043f | 2130 | struct usb_host_interface *host_iface; |
23caaf19 | 2131 | int err; |
84957a8a CL |
2132 | |
2133 | strcpy(chip->card->mixername, "USB Mixer"); | |
2134 | ||
561b220a | 2135 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2136 | if (!mixer) |
2137 | return -ENOMEM; | |
2138 | mixer->chip = chip; | |
2139 | mixer->ctrlif = ctrlif; | |
7a9b8063 | 2140 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2141 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2142 | GFP_KERNEL); | |
6639b6c2 CL |
2143 | if (!mixer->id_elems) { |
2144 | kfree(mixer); | |
2145 | return -ENOMEM; | |
2146 | } | |
84957a8a | 2147 | |
7b8a043f | 2148 | host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
ca4c2ada | 2149 | mixer->protocol = get_iface_desc(host_iface)->bInterfaceProtocol; |
7b8a043f | 2150 | |
6639b6c2 | 2151 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2152 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2153 | goto _error; | |
84957a8a | 2154 | |
7b1eda22 | 2155 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2156 | |
84957a8a | 2157 | err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); |
93446edc CL |
2158 | if (err < 0) |
2159 | goto _error; | |
ebfdeea3 JK |
2160 | |
2161 | if (list_empty(&chip->mixer_list) && | |
2162 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2163 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2164 | ||
84957a8a CL |
2165 | list_add(&mixer->list, &chip->mixer_list); |
2166 | return 0; | |
93446edc CL |
2167 | |
2168 | _error: | |
2169 | snd_usb_mixer_free(mixer); | |
2170 | return err; | |
84957a8a CL |
2171 | } |
2172 | ||
2173 | void snd_usb_mixer_disconnect(struct list_head *p) | |
2174 | { | |
6639b6c2 | 2175 | struct usb_mixer_interface *mixer; |
7b1eda22 | 2176 | |
6639b6c2 | 2177 | mixer = list_entry(p, struct usb_mixer_interface, list); |
68df9de1 MK |
2178 | usb_kill_urb(mixer->urb); |
2179 | usb_kill_urb(mixer->rc_urb); | |
84957a8a | 2180 | } |