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 | ||
157a57b6 DM |
29 | /* |
30 | * TODOs, for both the mixer and the streaming interfaces: | |
31 | * | |
32 | * - support for UAC2 effect units | |
33 | * - support for graphical equalizers | |
34 | * - RANGE and MEM set commands (UAC2) | |
35 | * - RANGE and MEM interrupt dispatchers (UAC2) | |
36 | * - audio channel clustering (UAC2) | |
37 | * - audio sample rate converter units (UAC2) | |
38 | * - proper handling of clock multipliers (UAC2) | |
39 | * - dispatch clock change notifications (UAC2) | |
40 | * - stop PCM streams which use a clock that became invalid | |
41 | * - stop PCM streams which use a clock selector that has changed | |
42 | * - parse available sample rates again when clock sources changed | |
43 | */ | |
44 | ||
1da177e4 LT |
45 | #include <linux/bitops.h> |
46 | #include <linux/init.h> | |
47 | #include <linux/list.h> | |
48 | #include <linux/slab.h> | |
49 | #include <linux/string.h> | |
50 | #include <linux/usb.h> | |
28e1b773 | 51 | #include <linux/usb/audio.h> |
23caaf19 | 52 | #include <linux/usb/audio-v2.h> |
28e1b773 | 53 | |
1da177e4 LT |
54 | #include <sound/core.h> |
55 | #include <sound/control.h> | |
b259b10c | 56 | #include <sound/hwdep.h> |
aafad562 | 57 | #include <sound/info.h> |
7bc5ba7e | 58 | #include <sound/tlv.h> |
1da177e4 LT |
59 | |
60 | #include "usbaudio.h" | |
f0b5e634 | 61 | #include "mixer.h" |
e5779998 | 62 | #include "helper.h" |
7b1eda22 | 63 | #include "mixer_quirks.h" |
88a8516a | 64 | #include "power.h" |
4d1a70da | 65 | |
ebfdeea3 JK |
66 | #define MAX_ID_ELEMS 256 |
67 | ||
1da177e4 LT |
68 | struct usb_audio_term { |
69 | int id; | |
70 | int type; | |
71 | int channels; | |
72 | unsigned int chconfig; | |
73 | int name; | |
74 | }; | |
75 | ||
76 | struct usbmix_name_map; | |
77 | ||
86e07d34 TI |
78 | struct mixer_build { |
79 | struct snd_usb_audio *chip; | |
84957a8a | 80 | struct usb_mixer_interface *mixer; |
1da177e4 LT |
81 | unsigned char *buffer; |
82 | unsigned int buflen; | |
291186e0 | 83 | DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); |
86e07d34 | 84 | struct usb_audio_term oterm; |
1da177e4 | 85 | const struct usbmix_name_map *map; |
8e062ec7 | 86 | const struct usbmix_selector_map *selector_map; |
1da177e4 LT |
87 | }; |
88 | ||
1cdfa9f3 | 89 | /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ |
7d2b451e SK |
90 | enum { |
91 | USB_XU_CLOCK_RATE = 0xe301, | |
92 | USB_XU_CLOCK_SOURCE = 0xe302, | |
93 | USB_XU_DIGITAL_IO_STATUS = 0xe303, | |
94 | USB_XU_DEVICE_OPTIONS = 0xe304, | |
95 | USB_XU_DIRECT_MONITORING = 0xe305, | |
96 | USB_XU_METERING = 0xe306 | |
97 | }; | |
98 | enum { | |
99 | USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ | |
100 | USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ | |
101 | USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ | |
102 | USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ | |
103 | }; | |
1da177e4 LT |
104 | |
105 | /* | |
106 | * manual mapping of mixer names | |
107 | * if the mixer topology is too complicated and the parsed names are | |
108 | * ambiguous, add the entries in usbmixer_maps.c. | |
109 | */ | |
f0b5e634 | 110 | #include "mixer_maps.c" |
1da177e4 | 111 | |
c3a3e040 JK |
112 | static const struct usbmix_name_map * |
113 | find_map(struct mixer_build *state, int unitid, int control) | |
1da177e4 | 114 | { |
c3a3e040 | 115 | const struct usbmix_name_map *p = state->map; |
1da177e4 | 116 | |
c3a3e040 JK |
117 | if (!p) |
118 | return NULL; | |
1da177e4 LT |
119 | |
120 | for (p = state->map; p->id; p++) { | |
c3a3e040 JK |
121 | if (p->id == unitid && |
122 | (!control || !p->control || control == p->control)) | |
123 | return p; | |
1da177e4 | 124 | } |
c3a3e040 | 125 | return NULL; |
1da177e4 LT |
126 | } |
127 | ||
c3a3e040 JK |
128 | /* get the mapped name if the unit matches */ |
129 | static int | |
130 | check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) | |
1da177e4 | 131 | { |
c3a3e040 JK |
132 | if (!p || !p->name) |
133 | return 0; | |
1da177e4 | 134 | |
c3a3e040 JK |
135 | buflen--; |
136 | return strlcpy(buf, p->name, buflen); | |
137 | } | |
138 | ||
139 | /* check whether the control should be ignored */ | |
140 | static inline int | |
141 | check_ignored_ctl(const struct usbmix_name_map *p) | |
142 | { | |
143 | if (!p || p->name || p->dB) | |
1da177e4 | 144 | return 0; |
c3a3e040 JK |
145 | return 1; |
146 | } | |
147 | ||
148 | /* dB mapping */ | |
149 | static inline void check_mapped_dB(const struct usbmix_name_map *p, | |
150 | struct usb_mixer_elem_info *cval) | |
151 | { | |
152 | if (p && p->dB) { | |
153 | cval->dBmin = p->dB->min; | |
154 | cval->dBmax = p->dB->max; | |
38b65190 | 155 | cval->initialized = 1; |
1da177e4 | 156 | } |
1da177e4 LT |
157 | } |
158 | ||
8e062ec7 | 159 | /* get the mapped selector source name */ |
86e07d34 | 160 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
161 | int index, char *buf, int buflen) |
162 | { | |
163 | const struct usbmix_selector_map *p; | |
164 | ||
165 | if (! state->selector_map) | |
166 | return 0; | |
167 | for (p = state->selector_map; p->id; p++) { | |
168 | if (p->id == unitid && index < p->count) | |
169 | return strlcpy(buf, p->names[index], buflen); | |
170 | } | |
171 | return 0; | |
172 | } | |
173 | ||
1da177e4 LT |
174 | /* |
175 | * find an audio control unit with the given unit id | |
176 | */ | |
86e07d34 | 177 | static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) |
1da177e4 | 178 | { |
67e1daa0 DM |
179 | /* we just parse the header */ |
180 | struct uac_feature_unit_descriptor *hdr = NULL; | |
181 | ||
182 | while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, | |
183 | USB_DT_CS_INTERFACE)) != NULL) { | |
184 | if (hdr->bLength >= 4 && | |
185 | hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && | |
186 | hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && | |
187 | hdr->bUnitID == unit) | |
188 | return hdr; | |
1da177e4 | 189 | } |
67e1daa0 | 190 | |
1da177e4 LT |
191 | return NULL; |
192 | } | |
193 | ||
1da177e4 LT |
194 | /* |
195 | * copy a string with the given id | |
196 | */ | |
86e07d34 | 197 | static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) |
1da177e4 LT |
198 | { |
199 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
200 | buf[len] = 0; | |
201 | return len; | |
202 | } | |
203 | ||
204 | /* | |
205 | * convert from the byte/word on usb descriptor to the zero-based integer | |
206 | */ | |
86e07d34 | 207 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
208 | { |
209 | switch (cval->val_type) { | |
210 | case USB_MIXER_BOOLEAN: | |
211 | return !!val; | |
212 | case USB_MIXER_INV_BOOLEAN: | |
213 | return !val; | |
214 | case USB_MIXER_U8: | |
215 | val &= 0xff; | |
216 | break; | |
217 | case USB_MIXER_S8: | |
218 | val &= 0xff; | |
219 | if (val >= 0x80) | |
220 | val -= 0x100; | |
221 | break; | |
222 | case USB_MIXER_U16: | |
223 | val &= 0xffff; | |
224 | break; | |
225 | case USB_MIXER_S16: | |
226 | val &= 0xffff; | |
227 | if (val >= 0x8000) | |
228 | val -= 0x10000; | |
229 | break; | |
230 | } | |
231 | return val; | |
232 | } | |
233 | ||
234 | /* | |
235 | * convert from the zero-based int to the byte/word for usb descriptor | |
236 | */ | |
86e07d34 | 237 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
238 | { |
239 | switch (cval->val_type) { | |
240 | case USB_MIXER_BOOLEAN: | |
241 | return !!val; | |
242 | case USB_MIXER_INV_BOOLEAN: | |
243 | return !val; | |
244 | case USB_MIXER_S8: | |
245 | case USB_MIXER_U8: | |
246 | return val & 0xff; | |
247 | case USB_MIXER_S16: | |
248 | case USB_MIXER_U16: | |
249 | return val & 0xffff; | |
250 | } | |
251 | return 0; /* not reached */ | |
252 | } | |
253 | ||
86e07d34 | 254 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
255 | { |
256 | if (! cval->res) | |
257 | cval->res = 1; | |
258 | if (val < cval->min) | |
259 | return 0; | |
14790f1c TI |
260 | else if (val >= cval->max) |
261 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
262 | else |
263 | return (val - cval->min) / cval->res; | |
264 | } | |
265 | ||
86e07d34 | 266 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
267 | { |
268 | if (val < 0) | |
269 | return cval->min; | |
270 | if (! cval->res) | |
271 | cval->res = 1; | |
272 | val *= cval->res; | |
273 | val += cval->min; | |
274 | if (val > cval->max) | |
275 | return cval->max; | |
276 | return val; | |
277 | } | |
278 | ||
279 | ||
280 | /* | |
281 | * retrieve a mixer value | |
282 | */ | |
283 | ||
23caaf19 | 284 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
1da177e4 | 285 | { |
3d8d4dcf | 286 | struct snd_usb_audio *chip = cval->mixer->chip; |
1da177e4 LT |
287 | unsigned char buf[2]; |
288 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
289 | int timeout = 10; | |
88a8516a | 290 | int err; |
1da177e4 | 291 | |
88a8516a ON |
292 | err = snd_usb_autoresume(cval->mixer->chip); |
293 | if (err < 0) | |
294 | return -EIO; | |
1da177e4 | 295 | while (timeout-- > 0) { |
3d8d4dcf | 296 | if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, |
1da177e4 | 297 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
3d8d4dcf | 298 | validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), |
17d900c4 | 299 | buf, val_len) >= val_len) { |
1da177e4 | 300 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
88a8516a | 301 | snd_usb_autosuspend(cval->mixer->chip); |
1da177e4 LT |
302 | return 0; |
303 | } | |
304 | } | |
88a8516a | 305 | snd_usb_autosuspend(cval->mixer->chip); |
84957a8a | 306 | snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
b415ec70 | 307 | request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); |
1da177e4 LT |
308 | return -EINVAL; |
309 | } | |
310 | ||
23caaf19 DM |
311 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
312 | { | |
3d8d4dcf | 313 | struct snd_usb_audio *chip = cval->mixer->chip; |
e8bdb6bb | 314 | unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ |
23caaf19 | 315 | unsigned char *val; |
e8bdb6bb | 316 | int ret, size; |
23caaf19 DM |
317 | __u8 bRequest; |
318 | ||
e8bdb6bb DM |
319 | if (request == UAC_GET_CUR) { |
320 | bRequest = UAC2_CS_CUR; | |
321 | size = sizeof(__u16); | |
322 | } else { | |
323 | bRequest = UAC2_CS_RANGE; | |
324 | size = sizeof(buf); | |
325 | } | |
326 | ||
327 | memset(buf, 0, sizeof(buf)); | |
23caaf19 | 328 | |
88a8516a ON |
329 | ret = snd_usb_autoresume(chip) ? -EIO : 0; |
330 | if (ret) | |
331 | goto error; | |
332 | ||
3d8d4dcf | 333 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, |
23caaf19 | 334 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
3d8d4dcf | 335 | validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), |
17d900c4 | 336 | buf, size); |
88a8516a | 337 | snd_usb_autosuspend(chip); |
23caaf19 DM |
338 | |
339 | if (ret < 0) { | |
88a8516a | 340 | error: |
09414207 | 341 | snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
3d8d4dcf | 342 | request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); |
23caaf19 DM |
343 | return ret; |
344 | } | |
345 | ||
e8bdb6bb DM |
346 | /* FIXME: how should we handle multiple triplets here? */ |
347 | ||
23caaf19 DM |
348 | switch (request) { |
349 | case UAC_GET_CUR: | |
350 | val = buf; | |
351 | break; | |
352 | case UAC_GET_MIN: | |
353 | val = buf + sizeof(__u16); | |
354 | break; | |
355 | case UAC_GET_MAX: | |
356 | val = buf + sizeof(__u16) * 2; | |
357 | break; | |
358 | case UAC_GET_RES: | |
359 | val = buf + sizeof(__u16) * 3; | |
360 | break; | |
361 | default: | |
362 | return -EINVAL; | |
363 | } | |
364 | ||
365 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); | |
366 | ||
367 | return 0; | |
368 | } | |
369 | ||
370 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) | |
371 | { | |
372 | return (cval->mixer->protocol == UAC_VERSION_1) ? | |
373 | get_ctl_value_v1(cval, request, validx, value_ret) : | |
374 | get_ctl_value_v2(cval, request, validx, value_ret); | |
375 | } | |
376 | ||
86e07d34 | 377 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) |
1da177e4 | 378 | { |
de48c7bc | 379 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
380 | } |
381 | ||
382 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
383 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
384 | int channel, int *value) | |
1da177e4 | 385 | { |
de48c7bc | 386 | return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); |
1da177e4 LT |
387 | } |
388 | ||
641b4879 TI |
389 | static int get_cur_mix_value(struct usb_mixer_elem_info *cval, |
390 | int channel, int index, int *value) | |
391 | { | |
392 | int err; | |
393 | ||
394 | if (cval->cached & (1 << channel)) { | |
395 | *value = cval->cache_val[index]; | |
396 | return 0; | |
397 | } | |
398 | err = get_cur_mix_raw(cval, channel, value); | |
399 | if (err < 0) { | |
400 | if (!cval->mixer->ignore_ctl_error) | |
23caaf19 | 401 | snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", |
641b4879 TI |
402 | cval->control, channel, err); |
403 | return err; | |
404 | } | |
405 | cval->cached |= 1 << channel; | |
406 | cval->cache_val[index] = *value; | |
407 | return 0; | |
408 | } | |
409 | ||
410 | ||
1da177e4 LT |
411 | /* |
412 | * set a mixer value | |
413 | */ | |
414 | ||
7b1eda22 DM |
415 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
416 | int request, int validx, int value_set) | |
1da177e4 | 417 | { |
3d8d4dcf | 418 | struct snd_usb_audio *chip = cval->mixer->chip; |
1da177e4 | 419 | unsigned char buf[2]; |
88a8516a | 420 | int val_len, err, timeout = 10; |
23caaf19 DM |
421 | |
422 | if (cval->mixer->protocol == UAC_VERSION_1) { | |
423 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
424 | } else { /* UAC_VERSION_2 */ | |
425 | /* audio class v2 controls are always 2 bytes in size */ | |
426 | val_len = sizeof(__u16); | |
427 | ||
428 | /* FIXME */ | |
429 | if (request != UAC_SET_CUR) { | |
430 | snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); | |
431 | return -EINVAL; | |
432 | } | |
433 | ||
434 | request = UAC2_CS_CUR; | |
435 | } | |
1da177e4 LT |
436 | |
437 | value_set = convert_bytes_value(cval, value_set); | |
438 | buf[0] = value_set & 0xff; | |
439 | buf[1] = (value_set >> 8) & 0xff; | |
88a8516a ON |
440 | err = snd_usb_autoresume(chip); |
441 | if (err < 0) | |
442 | return -EIO; | |
cf3f9130 | 443 | while (timeout-- > 0) |
3d8d4dcf DM |
444 | if (snd_usb_ctl_msg(chip->dev, |
445 | usb_sndctrlpipe(chip->dev, 0), request, | |
1da177e4 | 446 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, |
3d8d4dcf | 447 | validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), |
17d900c4 | 448 | buf, val_len) >= 0) { |
88a8516a | 449 | snd_usb_autosuspend(chip); |
1da177e4 | 450 | return 0; |
88a8516a ON |
451 | } |
452 | snd_usb_autosuspend(chip); | |
84957a8a | 453 | snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
3d8d4dcf | 454 | request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type, buf[0], buf[1]); |
1da177e4 LT |
455 | return -EINVAL; |
456 | } | |
457 | ||
86e07d34 | 458 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) |
1da177e4 | 459 | { |
7b1eda22 | 460 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
461 | } |
462 | ||
641b4879 TI |
463 | static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
464 | int index, int value) | |
1da177e4 | 465 | { |
641b4879 | 466 | int err; |
a6a33259 DM |
467 | unsigned int read_only = (channel == 0) ? |
468 | cval->master_readonly : | |
469 | cval->ch_readonly & (1 << (channel - 1)); | |
470 | ||
471 | if (read_only) { | |
472 | snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", | |
473 | __func__, channel, cval->control); | |
474 | return 0; | |
475 | } | |
476 | ||
7b1eda22 | 477 | err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, |
641b4879 TI |
478 | value); |
479 | if (err < 0) | |
480 | return err; | |
481 | cval->cached |= 1 << channel; | |
482 | cval->cache_val[index] = value; | |
483 | return 0; | |
1da177e4 LT |
484 | } |
485 | ||
7bc5ba7e TI |
486 | /* |
487 | * TLV callback for mixer volume controls | |
488 | */ | |
489 | static int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, | |
490 | unsigned int size, unsigned int __user *_tlv) | |
491 | { | |
492 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 493 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
494 | |
495 | if (size < sizeof(scale)) | |
496 | return -ENOMEM; | |
c3a3e040 JK |
497 | scale[2] = cval->dBmin; |
498 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
499 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
500 | return -EFAULT; | |
501 | return 0; | |
502 | } | |
1da177e4 LT |
503 | |
504 | /* | |
505 | * parser routines begin here... | |
506 | */ | |
507 | ||
86e07d34 | 508 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
509 | |
510 | ||
511 | /* | |
512 | * check if the input/output channel routing is enabled on the given bitmap. | |
513 | * used for mixer unit parser | |
514 | */ | |
515 | static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) | |
516 | { | |
517 | int idx = ich * num_outs + och; | |
518 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
519 | } | |
520 | ||
521 | ||
522 | /* | |
523 | * add an alsa control element | |
524 | * search and increment the index until an empty slot is found. | |
525 | * | |
526 | * if failed, give up and free the control instance. | |
527 | */ | |
528 | ||
ef9d5970 DM |
529 | int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, |
530 | struct snd_kcontrol *kctl) | |
1da177e4 | 531 | { |
86e07d34 | 532 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 533 | int err; |
84957a8a | 534 | |
ef9d5970 | 535 | while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) |
1da177e4 | 536 | kctl->id.index++; |
ef9d5970 | 537 | if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { |
1da177e4 | 538 | snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); |
6639b6c2 | 539 | return err; |
1da177e4 | 540 | } |
6639b6c2 | 541 | cval->elem_id = &kctl->id; |
ef9d5970 DM |
542 | cval->next_id_elem = mixer->id_elems[cval->id]; |
543 | mixer->id_elems[cval->id] = cval; | |
6639b6c2 | 544 | return 0; |
1da177e4 LT |
545 | } |
546 | ||
547 | ||
548 | /* | |
549 | * get a terminal name string | |
550 | */ | |
551 | ||
552 | static struct iterm_name_combo { | |
553 | int type; | |
554 | char *name; | |
555 | } iterm_names[] = { | |
556 | { 0x0300, "Output" }, | |
557 | { 0x0301, "Speaker" }, | |
558 | { 0x0302, "Headphone" }, | |
559 | { 0x0303, "HMD Audio" }, | |
560 | { 0x0304, "Desktop Speaker" }, | |
561 | { 0x0305, "Room Speaker" }, | |
562 | { 0x0306, "Com Speaker" }, | |
563 | { 0x0307, "LFE" }, | |
564 | { 0x0600, "External In" }, | |
565 | { 0x0601, "Analog In" }, | |
566 | { 0x0602, "Digital In" }, | |
567 | { 0x0603, "Line" }, | |
568 | { 0x0604, "Legacy In" }, | |
569 | { 0x0605, "IEC958 In" }, | |
570 | { 0x0606, "1394 DA Stream" }, | |
571 | { 0x0607, "1394 DV Stream" }, | |
572 | { 0x0700, "Embedded" }, | |
573 | { 0x0701, "Noise Source" }, | |
574 | { 0x0702, "Equalization Noise" }, | |
575 | { 0x0703, "CD" }, | |
576 | { 0x0704, "DAT" }, | |
577 | { 0x0705, "DCC" }, | |
578 | { 0x0706, "MiniDisk" }, | |
579 | { 0x0707, "Analog Tape" }, | |
580 | { 0x0708, "Phonograph" }, | |
581 | { 0x0709, "VCR Audio" }, | |
582 | { 0x070a, "Video Disk Audio" }, | |
583 | { 0x070b, "DVD Audio" }, | |
584 | { 0x070c, "TV Tuner Audio" }, | |
585 | { 0x070d, "Satellite Rec Audio" }, | |
586 | { 0x070e, "Cable Tuner Audio" }, | |
587 | { 0x070f, "DSS Audio" }, | |
588 | { 0x0710, "Radio Receiver" }, | |
589 | { 0x0711, "Radio Transmitter" }, | |
590 | { 0x0712, "Multi-Track Recorder" }, | |
591 | { 0x0713, "Synthesizer" }, | |
592 | { 0 }, | |
593 | }; | |
594 | ||
86e07d34 | 595 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
596 | unsigned char *name, int maxlen, int term_only) |
597 | { | |
598 | struct iterm_name_combo *names; | |
599 | ||
600 | if (iterm->name) | |
601 | return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); | |
602 | ||
603 | /* virtual type - not a real terminal */ | |
604 | if (iterm->type >> 16) { | |
605 | if (term_only) | |
606 | return 0; | |
607 | switch (iterm->type >> 16) { | |
de48c7bc | 608 | case UAC_SELECTOR_UNIT: |
1da177e4 | 609 | strcpy(name, "Selector"); return 8; |
69da9bcb | 610 | case UAC1_PROCESSING_UNIT: |
1da177e4 | 611 | strcpy(name, "Process Unit"); return 12; |
69da9bcb | 612 | case UAC1_EXTENSION_UNIT: |
1da177e4 | 613 | strcpy(name, "Ext Unit"); return 8; |
de48c7bc | 614 | case UAC_MIXER_UNIT: |
1da177e4 LT |
615 | strcpy(name, "Mixer"); return 5; |
616 | default: | |
617 | return sprintf(name, "Unit %d", iterm->id); | |
618 | } | |
619 | } | |
620 | ||
621 | switch (iterm->type & 0xff00) { | |
622 | case 0x0100: | |
623 | strcpy(name, "PCM"); return 3; | |
624 | case 0x0200: | |
625 | strcpy(name, "Mic"); return 3; | |
626 | case 0x0400: | |
627 | strcpy(name, "Headset"); return 7; | |
628 | case 0x0500: | |
629 | strcpy(name, "Phone"); return 5; | |
630 | } | |
631 | ||
632 | for (names = iterm_names; names->type; names++) | |
633 | if (names->type == iterm->type) { | |
634 | strcpy(name, names->name); | |
635 | return strlen(names->name); | |
636 | } | |
637 | return 0; | |
638 | } | |
639 | ||
640 | ||
641 | /* | |
642 | * parse the source unit recursively until it reaches to a terminal | |
643 | * or a branched unit. | |
644 | */ | |
86e07d34 | 645 | static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) |
1da177e4 | 646 | { |
09414207 | 647 | int err; |
23caaf19 | 648 | void *p1; |
1da177e4 LT |
649 | |
650 | memset(term, 0, sizeof(*term)); | |
651 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 652 | unsigned char *hdr = p1; |
1da177e4 | 653 | term->id = id; |
23caaf19 | 654 | switch (hdr[2]) { |
de48c7bc | 655 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
656 | if (state->mixer->protocol == UAC_VERSION_1) { |
657 | struct uac_input_terminal_descriptor *d = p1; | |
658 | term->type = le16_to_cpu(d->wTerminalType); | |
659 | term->channels = d->bNrChannels; | |
660 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
661 | term->name = d->iTerminal; | |
662 | } else { /* UAC_VERSION_2 */ | |
663 | struct uac2_input_terminal_descriptor *d = p1; | |
664 | term->type = le16_to_cpu(d->wTerminalType); | |
665 | term->channels = d->bNrChannels; | |
666 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
667 | term->name = d->iTerminal; | |
09414207 DM |
668 | |
669 | /* call recursively to get the clock selectors */ | |
670 | err = check_input_term(state, d->bCSourceID, term); | |
671 | if (err < 0) | |
672 | return err; | |
23caaf19 | 673 | } |
1da177e4 | 674 | return 0; |
23caaf19 DM |
675 | case UAC_FEATURE_UNIT: { |
676 | /* the header is the same for v1 and v2 */ | |
677 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 678 | id = d->bSourceID; |
1da177e4 | 679 | break; /* continue to parse */ |
23caaf19 DM |
680 | } |
681 | case UAC_MIXER_UNIT: { | |
682 | struct uac_mixer_unit_descriptor *d = p1; | |
683 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
684 | term->channels = uac_mixer_unit_bNrChannels(d); | |
685 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
686 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 687 | return 0; |
23caaf19 | 688 | } |
09414207 DM |
689 | case UAC_SELECTOR_UNIT: |
690 | case UAC2_CLOCK_SELECTOR: { | |
23caaf19 | 691 | struct uac_selector_unit_descriptor *d = p1; |
1da177e4 | 692 | /* call recursively to retrieve the channel info */ |
23caaf19 | 693 | if (check_input_term(state, d->baSourceID[0], term) < 0) |
1da177e4 | 694 | return -ENODEV; |
23caaf19 | 695 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 696 | term->id = id; |
23caaf19 | 697 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 698 | return 0; |
23caaf19 | 699 | } |
69da9bcb DM |
700 | case UAC1_PROCESSING_UNIT: |
701 | case UAC1_EXTENSION_UNIT: { | |
23caaf19 DM |
702 | struct uac_processing_unit_descriptor *d = p1; |
703 | if (d->bNrInPins) { | |
704 | id = d->baSourceID[0]; | |
1da177e4 LT |
705 | break; /* continue to parse */ |
706 | } | |
23caaf19 DM |
707 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
708 | term->channels = uac_processing_unit_bNrChannels(d); | |
709 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
710 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 711 | return 0; |
23caaf19 | 712 | } |
09414207 DM |
713 | case UAC2_CLOCK_SOURCE: { |
714 | struct uac_clock_source_descriptor *d = p1; | |
715 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
716 | term->id = id; | |
717 | term->name = d->iClockSource; | |
718 | return 0; | |
719 | } | |
1da177e4 LT |
720 | default: |
721 | return -ENODEV; | |
722 | } | |
723 | } | |
724 | return -ENODEV; | |
725 | } | |
726 | ||
727 | ||
728 | /* | |
729 | * Feature Unit | |
730 | */ | |
731 | ||
732 | /* feature unit control information */ | |
733 | struct usb_feature_control_info { | |
734 | const char *name; | |
735 | unsigned int type; /* control type (mute, volume, etc.) */ | |
736 | }; | |
737 | ||
738 | static struct usb_feature_control_info audio_feature_info[] = { | |
2e0281d1 DM |
739 | { "Mute", USB_MIXER_INV_BOOLEAN }, |
740 | { "Volume", USB_MIXER_S16 }, | |
1da177e4 LT |
741 | { "Tone Control - Bass", USB_MIXER_S8 }, |
742 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
743 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
744 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
2e0281d1 DM |
745 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, |
746 | { "Delay Control", USB_MIXER_U16 }, | |
747 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
748 | { "Loudness", USB_MIXER_BOOLEAN }, | |
749 | /* UAC2 specific */ | |
750 | { "Input Gain Control", USB_MIXER_U16 }, | |
751 | { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, | |
752 | { "Phase Inverter Control", USB_MIXER_BOOLEAN }, | |
1da177e4 LT |
753 | }; |
754 | ||
755 | ||
756 | /* private_free callback */ | |
86e07d34 | 757 | static void usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 758 | { |
4d572776 JJ |
759 | kfree(kctl->private_data); |
760 | kctl->private_data = NULL; | |
1da177e4 LT |
761 | } |
762 | ||
763 | ||
764 | /* | |
765 | * interface to ALSA control for feature/mixer units | |
766 | */ | |
767 | ||
dcaaf9f2 TI |
768 | /* volume control quirks */ |
769 | static void volume_control_quirks(struct usb_mixer_elem_info *cval, | |
770 | struct snd_kcontrol *kctl) | |
771 | { | |
772 | switch (cval->mixer->chip->usb_id) { | |
773 | case USB_ID(0x0471, 0x0101): | |
774 | case USB_ID(0x0471, 0x0104): | |
775 | case USB_ID(0x0471, 0x0105): | |
776 | case USB_ID(0x0672, 0x1041): | |
777 | /* quirk for UDA1321/N101. | |
778 | * note that detection between firmware 2.1.1.7 (N101) | |
779 | * and later 2.1.1.21 is not very clear from datasheets. | |
780 | * I hope that the min value is -15360 for newer firmware --jk | |
781 | */ | |
782 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && | |
783 | cval->min == -15616) { | |
784 | snd_printk(KERN_INFO | |
785 | "set volume quirk for UDA1321/N101 chip\n"); | |
786 | cval->max = -256; | |
787 | } | |
788 | break; | |
789 | ||
790 | case USB_ID(0x046d, 0x09a4): | |
791 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
792 | snd_printk(KERN_INFO | |
793 | "set volume quirk for QuickCam E3500\n"); | |
794 | cval->min = 6080; | |
795 | cval->max = 8768; | |
796 | cval->res = 192; | |
797 | } | |
798 | break; | |
799 | ||
800 | case USB_ID(0x046d, 0x0808): | |
801 | case USB_ID(0x046d, 0x0809): | |
55c0008b | 802 | case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ |
dcaaf9f2 TI |
803 | case USB_ID(0x046d, 0x0991): |
804 | /* Most audio usb devices lie about volume resolution. | |
805 | * Most Logitech webcams have res = 384. | |
806 | * Proboly there is some logitech magic behind this number --fishor | |
807 | */ | |
808 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
809 | snd_printk(KERN_INFO | |
810 | "set resolution quirk: cval->res = 384\n"); | |
811 | cval->res = 384; | |
812 | } | |
813 | break; | |
814 | ||
815 | } | |
816 | } | |
817 | ||
1da177e4 LT |
818 | /* |
819 | * retrieve the minimum and maximum values for the specified control | |
820 | */ | |
dcaaf9f2 TI |
821 | static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, |
822 | int default_min, struct snd_kcontrol *kctl) | |
1da177e4 LT |
823 | { |
824 | /* for failsafe */ | |
825 | cval->min = default_min; | |
826 | cval->max = cval->min + 1; | |
827 | cval->res = 1; | |
c3a3e040 | 828 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
829 | |
830 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
831 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
832 | cval->initialized = 1; | |
833 | } else { | |
834 | int minchn = 0; | |
835 | if (cval->cmask) { | |
836 | int i; | |
837 | for (i = 0; i < MAX_CHANNELS; i++) | |
838 | if (cval->cmask & (1 << i)) { | |
839 | minchn = i + 1; | |
840 | break; | |
841 | } | |
842 | } | |
de48c7bc DM |
843 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
844 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
84957a8a | 845 | snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", |
1a4e34e6 | 846 | cval->id, snd_usb_ctrl_intf(cval->mixer->chip), cval->control, cval->id); |
1da177e4 LT |
847 | return -EINVAL; |
848 | } | |
de48c7bc | 849 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { |
1da177e4 LT |
850 | cval->res = 1; |
851 | } else { | |
852 | int last_valid_res = cval->res; | |
853 | ||
854 | while (cval->res > 1) { | |
7b1eda22 DM |
855 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
856 | (cval->control << 8) | minchn, cval->res / 2) < 0) | |
1da177e4 LT |
857 | break; |
858 | cval->res /= 2; | |
859 | } | |
de48c7bc | 860 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) |
1da177e4 LT |
861 | cval->res = last_valid_res; |
862 | } | |
863 | if (cval->res == 0) | |
864 | cval->res = 1; | |
14790f1c TI |
865 | |
866 | /* Additional checks for the proper resolution | |
867 | * | |
868 | * Some devices report smaller resolutions than actually | |
869 | * reacting. They don't return errors but simply clip | |
870 | * to the lower aligned value. | |
871 | */ | |
872 | if (cval->min + cval->res < cval->max) { | |
873 | int last_valid_res = cval->res; | |
874 | int saved, test, check; | |
641b4879 | 875 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
876 | for (;;) { |
877 | test = saved; | |
878 | if (test < cval->max) | |
879 | test += cval->res; | |
880 | else | |
881 | test -= cval->res; | |
882 | if (test < cval->min || test > cval->max || | |
641b4879 TI |
883 | set_cur_mix_value(cval, minchn, 0, test) || |
884 | get_cur_mix_raw(cval, minchn, &check)) { | |
14790f1c TI |
885 | cval->res = last_valid_res; |
886 | break; | |
887 | } | |
888 | if (test == check) | |
889 | break; | |
890 | cval->res *= 2; | |
891 | } | |
641b4879 | 892 | set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
893 | } |
894 | ||
1da177e4 LT |
895 | cval->initialized = 1; |
896 | } | |
c3a3e040 | 897 | |
dcaaf9f2 TI |
898 | if (kctl) |
899 | volume_control_quirks(cval, kctl); | |
900 | ||
c3a3e040 JK |
901 | /* USB descriptions contain the dB scale in 1/256 dB unit |
902 | * while ALSA TLV contains in 1/100 dB unit | |
903 | */ | |
904 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
905 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
906 | if (cval->dBmin > cval->dBmax) { | |
907 | /* something is wrong; assume it's either from/to 0dB */ | |
908 | if (cval->dBmin < 0) | |
909 | cval->dBmax = 0; | |
910 | else if (cval->dBmin > 0) | |
911 | cval->dBmin = 0; | |
912 | if (cval->dBmin > cval->dBmax) { | |
913 | /* totally crap, return an error */ | |
914 | return -EINVAL; | |
915 | } | |
916 | } | |
917 | ||
1da177e4 LT |
918 | return 0; |
919 | } | |
920 | ||
dcaaf9f2 | 921 | #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) |
1da177e4 LT |
922 | |
923 | /* get a feature/mixer unit info */ | |
86e07d34 | 924 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 925 | { |
86e07d34 | 926 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
927 | |
928 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
929 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
930 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
931 | else | |
932 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
933 | uinfo->count = cval->channels; | |
934 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
935 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
936 | uinfo->value.integer.min = 0; | |
937 | uinfo->value.integer.max = 1; | |
938 | } else { | |
9fcd0ab1 | 939 | if (!cval->initialized) { |
dcaaf9f2 | 940 | get_min_max_with_quirks(cval, 0, kcontrol); |
9fcd0ab1 TI |
941 | if (cval->initialized && cval->dBmin >= cval->dBmax) { |
942 | kcontrol->vd[0].access &= | |
943 | ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
944 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); | |
945 | snd_ctl_notify(cval->mixer->chip->card, | |
946 | SNDRV_CTL_EVENT_MASK_INFO, | |
947 | &kcontrol->id); | |
948 | } | |
949 | } | |
1da177e4 | 950 | uinfo->value.integer.min = 0; |
14790f1c TI |
951 | uinfo->value.integer.max = |
952 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
953 | } |
954 | return 0; | |
955 | } | |
956 | ||
957 | /* get the current value from feature/mixer unit */ | |
86e07d34 | 958 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 959 | { |
86e07d34 | 960 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
961 | int c, cnt, val, err; |
962 | ||
641b4879 | 963 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
964 | if (cval->cmask) { |
965 | cnt = 0; | |
966 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
967 | if (!(cval->cmask & (1 << c))) |
968 | continue; | |
969 | err = get_cur_mix_value(cval, c + 1, cnt, &val); | |
970 | if (err < 0) | |
971 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
972 | val = get_relative_value(cval, val); | |
973 | ucontrol->value.integer.value[cnt] = val; | |
974 | cnt++; | |
1da177e4 | 975 | } |
641b4879 | 976 | return 0; |
1da177e4 LT |
977 | } else { |
978 | /* master channel */ | |
641b4879 TI |
979 | err = get_cur_mix_value(cval, 0, 0, &val); |
980 | if (err < 0) | |
981 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1da177e4 LT |
982 | val = get_relative_value(cval, val); |
983 | ucontrol->value.integer.value[0] = val; | |
984 | } | |
985 | return 0; | |
986 | } | |
987 | ||
988 | /* put the current value to feature/mixer unit */ | |
86e07d34 | 989 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 990 | { |
86e07d34 | 991 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
992 | int c, cnt, val, oval, err; |
993 | int changed = 0; | |
994 | ||
995 | if (cval->cmask) { | |
996 | cnt = 0; | |
997 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
998 | if (!(cval->cmask & (1 << c))) |
999 | continue; | |
1000 | err = get_cur_mix_value(cval, c + 1, cnt, &oval); | |
1001 | if (err < 0) | |
1002 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1003 | val = ucontrol->value.integer.value[cnt]; | |
1004 | val = get_abs_value(cval, val); | |
1005 | if (oval != val) { | |
1006 | set_cur_mix_value(cval, c + 1, cnt, val); | |
1007 | changed = 1; | |
1da177e4 | 1008 | } |
641b4879 | 1009 | cnt++; |
1da177e4 LT |
1010 | } |
1011 | } else { | |
1012 | /* master channel */ | |
641b4879 | 1013 | err = get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 1014 | if (err < 0) |
641b4879 | 1015 | return cval->mixer->ignore_ctl_error ? 0 : err; |
1da177e4 LT |
1016 | val = ucontrol->value.integer.value[0]; |
1017 | val = get_abs_value(cval, val); | |
1018 | if (val != oval) { | |
641b4879 | 1019 | set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
1020 | changed = 1; |
1021 | } | |
1022 | } | |
1023 | return changed; | |
1024 | } | |
1025 | ||
86e07d34 | 1026 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
1027 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1028 | .name = "", /* will be filled later manually */ | |
1029 | .info = mixer_ctl_feature_info, | |
1030 | .get = mixer_ctl_feature_get, | |
1031 | .put = mixer_ctl_feature_put, | |
1032 | }; | |
1033 | ||
23caaf19 DM |
1034 | /* the read-only variant */ |
1035 | static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { | |
1036 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1037 | .name = "", /* will be filled later manually */ | |
1038 | .info = mixer_ctl_feature_info, | |
1039 | .get = mixer_ctl_feature_get, | |
1040 | .put = NULL, | |
1041 | }; | |
1042 | ||
9e38658f DM |
1043 | /* This symbol is exported in order to allow the mixer quirks to |
1044 | * hook up to the standard feature unit control mechanism */ | |
1045 | struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; | |
1da177e4 LT |
1046 | |
1047 | /* | |
1048 | * build a feature control | |
1049 | */ | |
1050 | ||
08d1e635 TI |
1051 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
1052 | { | |
1053 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
1054 | } | |
1055 | ||
99fc8645 | 1056 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 1057 | unsigned int ctl_mask, int control, |
23caaf19 | 1058 | struct usb_audio_term *iterm, int unitid, |
a6a33259 | 1059 | int readonly_mask) |
1da177e4 | 1060 | { |
99fc8645 | 1061 | struct uac_feature_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1062 | unsigned int len = 0; |
1063 | int mapped_name = 0; | |
99fc8645 | 1064 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
1065 | struct snd_kcontrol *kctl; |
1066 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 1067 | const struct usbmix_name_map *map; |
80acefff | 1068 | unsigned int range; |
1da177e4 LT |
1069 | |
1070 | control++; /* change from zero-based to 1-based value */ | |
1071 | ||
65f25da4 | 1072 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
1073 | /* FIXME: not supported yet */ |
1074 | return; | |
1075 | } | |
1076 | ||
c3a3e040 JK |
1077 | map = find_map(state, unitid, control); |
1078 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1079 | return; |
1080 | ||
561b220a | 1081 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1082 | if (! cval) { |
1083 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1084 | return; | |
1085 | } | |
84957a8a | 1086 | cval->mixer = state->mixer; |
1da177e4 LT |
1087 | cval->id = unitid; |
1088 | cval->control = control; | |
1089 | cval->cmask = ctl_mask; | |
1090 | cval->val_type = audio_feature_info[control-1].type; | |
a6a33259 | 1091 | if (ctl_mask == 0) { |
1da177e4 | 1092 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
1093 | cval->master_readonly = readonly_mask; |
1094 | } else { | |
1da177e4 LT |
1095 | int i, c = 0; |
1096 | for (i = 0; i < 16; i++) | |
1097 | if (ctl_mask & (1 << i)) | |
1098 | c++; | |
1099 | cval->channels = c; | |
a6a33259 | 1100 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
1101 | } |
1102 | ||
a6a33259 DM |
1103 | /* if all channels in the mask are marked read-only, make the control |
1104 | * read-only. set_cur_mix_value() will check the mask again and won't | |
1105 | * issue write commands to read-only channels. */ | |
1106 | if (cval->channels == readonly_mask) | |
23caaf19 DM |
1107 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1108 | else | |
1109 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1110 | ||
1da177e4 LT |
1111 | if (! kctl) { |
1112 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1113 | kfree(cval); | |
1114 | return; | |
1115 | } | |
1116 | kctl->private_free = usb_mixer_elem_free; | |
1117 | ||
c3a3e040 | 1118 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1119 | mapped_name = len != 0; |
1120 | if (! len && nameid) | |
c3a3e040 JK |
1121 | len = snd_usb_copy_string_desc(state, nameid, |
1122 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 | 1123 | |
dcaaf9f2 TI |
1124 | /* get min/max values */ |
1125 | get_min_max_with_quirks(cval, 0, kctl); | |
1126 | ||
1da177e4 | 1127 | switch (control) { |
65f25da4 DM |
1128 | case UAC_FU_MUTE: |
1129 | case UAC_FU_VOLUME: | |
1da177e4 LT |
1130 | /* determine the control name. the rule is: |
1131 | * - if a name id is given in descriptor, use it. | |
1132 | * - if the connected input can be determined, then use the name | |
1133 | * of terminal type. | |
1134 | * - if the connected output can be determined, use it. | |
1135 | * - otherwise, anonymous name. | |
1136 | */ | |
1137 | if (! len) { | |
1138 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1139 | if (! len) | |
1140 | len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1141 | if (! len) | |
1142 | len = snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1143 | "Feature %d", unitid); | |
1144 | } | |
1145 | /* determine the stream direction: | |
1146 | * if the connected output is USB stream, then it's likely a | |
1147 | * capture stream. otherwise it should be playback (hopefully :) | |
1148 | */ | |
1149 | if (! mapped_name && ! (state->oterm.type >> 16)) { | |
1150 | if ((state->oterm.type & 0xff00) == 0x0100) { | |
08d1e635 | 1151 | len = append_ctl_name(kctl, " Capture"); |
1da177e4 | 1152 | } else { |
08d1e635 | 1153 | len = append_ctl_name(kctl, " Playback"); |
1da177e4 LT |
1154 | } |
1155 | } | |
65f25da4 | 1156 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1157 | " Switch" : " Volume"); |
65f25da4 | 1158 | if (control == UAC_FU_VOLUME) { |
c3a3e040 | 1159 | check_mapped_dB(map, cval); |
38b65190 | 1160 | if (cval->dBmin < cval->dBmax || !cval->initialized) { |
59bb7f0e TI |
1161 | kctl->tlv.c = mixer_vol_tlv; |
1162 | kctl->vd[0].access |= | |
1163 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1164 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
1165 | } | |
7bc5ba7e | 1166 | } |
1da177e4 LT |
1167 | break; |
1168 | ||
1169 | default: | |
1170 | if (! len) | |
1171 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, | |
1172 | sizeof(kctl->id.name)); | |
1173 | break; | |
1174 | } | |
1175 | ||
80acefff AF |
1176 | range = (cval->max - cval->min) / cval->res; |
1177 | /* Are there devices with volume range more than 255? I use a bit more | |
1178 | * to be sure. 384 is a resolution magic number found on Logitech | |
1179 | * devices. It will definitively catch all buggy Logitech devices. | |
1180 | */ | |
1181 | if (range > 384) { | |
1182 | snd_printk(KERN_WARNING "usb_audio: Warning! Unlikely big " | |
1183 | "volume range (=%u), cval->res is probably wrong.", | |
1184 | range); | |
1185 | snd_printk(KERN_WARNING "usb_audio: [%d] FU [%s] ch = %d, " | |
1186 | "val = %d/%d/%d", cval->id, | |
1187 | kctl->id.name, cval->channels, | |
1188 | cval->min, cval->max, cval->res); | |
1189 | } | |
1190 | ||
1da177e4 LT |
1191 | snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", |
1192 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); | |
ef9d5970 | 1193 | snd_usb_mixer_add_control(state->mixer, kctl); |
1da177e4 LT |
1194 | } |
1195 | ||
1196 | ||
1197 | ||
1198 | /* | |
1199 | * parse a feature unit | |
1200 | * | |
25985edc | 1201 | * most of controls are defined here. |
1da177e4 | 1202 | */ |
28e1b773 | 1203 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) |
1da177e4 LT |
1204 | { |
1205 | int channels, i, j; | |
86e07d34 | 1206 | struct usb_audio_term iterm; |
1da177e4 LT |
1207 | unsigned int master_bits, first_ch_bits; |
1208 | int err, csize; | |
23caaf19 DM |
1209 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1210 | __u8 *bmaControls; | |
1211 | ||
1212 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1213 | csize = hdr->bControlSize; | |
60c961a9 NK |
1214 | if (!csize) { |
1215 | snd_printdd(KERN_ERR "usbaudio: unit %u: " | |
1216 | "invalid bControlSize == 0\n", unitid); | |
1217 | return -EINVAL; | |
1218 | } | |
23caaf19 DM |
1219 | channels = (hdr->bLength - 7) / csize - 1; |
1220 | bmaControls = hdr->bmaControls; | |
1221 | } else { | |
1222 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
1223 | csize = 4; | |
e8d0fee7 | 1224 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 DM |
1225 | bmaControls = ftr->bmaControls; |
1226 | } | |
1da177e4 | 1227 | |
23caaf19 | 1228 | if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { |
de48c7bc | 1229 | snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); |
1da177e4 LT |
1230 | return -EINVAL; |
1231 | } | |
1232 | ||
1233 | /* parse the source unit */ | |
23caaf19 | 1234 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1235 | return err; |
1236 | ||
1237 | /* determine the input source type and name */ | |
23caaf19 | 1238 | if (check_input_term(state, hdr->bSourceID, &iterm) < 0) |
1da177e4 LT |
1239 | return -EINVAL; |
1240 | ||
23caaf19 | 1241 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1242 | /* master configuration quirks */ |
1243 | switch (state->chip->usb_id) { | |
1244 | case USB_ID(0x08bb, 0x2702): | |
1245 | snd_printk(KERN_INFO | |
1246 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
1247 | /* disable non-functional volume control */ | |
65f25da4 | 1248 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 JK |
1249 | break; |
1250 | } | |
1da177e4 | 1251 | if (channels > 0) |
23caaf19 | 1252 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1253 | else |
1254 | first_ch_bits = 0; | |
23caaf19 DM |
1255 | |
1256 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1257 | /* check all control types */ | |
1258 | for (i = 0; i < 10; i++) { | |
1259 | unsigned int ch_bits = 0; | |
1260 | for (j = 0; j < channels; j++) { | |
1261 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
1262 | if (mask & (1 << i)) | |
1263 | ch_bits |= (1 << j); | |
1264 | } | |
1265 | /* audio class v1 controls are never read-only */ | |
1266 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ | |
1267 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); | |
1268 | if (master_bits & (1 << i)) | |
1269 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); | |
1270 | } | |
1271 | } else { /* UAC_VERSION_2 */ | |
d09c06c6 | 1272 | for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { |
23caaf19 DM |
1273 | unsigned int ch_bits = 0; |
1274 | unsigned int ch_read_only = 0; | |
1275 | ||
1276 | for (j = 0; j < channels; j++) { | |
1277 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
dcbe7bcf | 1278 | if (uac2_control_is_readable(mask, i)) { |
23caaf19 | 1279 | ch_bits |= (1 << j); |
dcbe7bcf | 1280 | if (!uac2_control_is_writeable(mask, i)) |
23caaf19 DM |
1281 | ch_read_only |= (1 << j); |
1282 | } | |
1283 | } | |
1284 | ||
a6a33259 DM |
1285 | /* NOTE: build_feature_ctl() will mark the control read-only if all channels |
1286 | * are marked read-only in the descriptors. Otherwise, the control will be | |
1287 | * reported as writeable, but the driver will not actually issue a write | |
1288 | * command for read-only channels */ | |
23caaf19 | 1289 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ |
a6a33259 | 1290 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); |
dcbe7bcf | 1291 | if (uac2_control_is_readable(master_bits, i)) |
23caaf19 | 1292 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
dcbe7bcf | 1293 | !uac2_control_is_writeable(master_bits, i)); |
1da177e4 | 1294 | } |
1da177e4 LT |
1295 | } |
1296 | ||
1297 | return 0; | |
1298 | } | |
1299 | ||
1300 | ||
1301 | /* | |
1302 | * Mixer Unit | |
1303 | */ | |
1304 | ||
1305 | /* | |
1306 | * build a mixer unit control | |
1307 | * | |
1308 | * the callbacks are identical with feature unit. | |
1309 | * input channel number (zero based) is given in control field instead. | |
1310 | */ | |
1311 | ||
99fc8645 DM |
1312 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1313 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1314 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1315 | struct usb_audio_term *iterm) |
1da177e4 | 1316 | { |
86e07d34 | 1317 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1318 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1319 | unsigned int i, len; |
86e07d34 | 1320 | struct snd_kcontrol *kctl; |
c3a3e040 | 1321 | const struct usbmix_name_map *map; |
1da177e4 | 1322 | |
c3a3e040 JK |
1323 | map = find_map(state, unitid, 0); |
1324 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1325 | return; |
1326 | ||
561b220a | 1327 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1328 | if (! cval) |
1329 | return; | |
1330 | ||
84957a8a | 1331 | cval->mixer = state->mixer; |
1da177e4 LT |
1332 | cval->id = unitid; |
1333 | cval->control = in_ch + 1; /* based on 1 */ | |
1334 | cval->val_type = USB_MIXER_S16; | |
1335 | for (i = 0; i < num_outs; i++) { | |
23caaf19 | 1336 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { |
1da177e4 LT |
1337 | cval->cmask |= (1 << i); |
1338 | cval->channels++; | |
1339 | } | |
1340 | } | |
1341 | ||
1342 | /* get min/max values */ | |
1343 | get_min_max(cval, 0); | |
1344 | ||
1345 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1346 | if (! kctl) { | |
1347 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1348 | kfree(cval); | |
1349 | return; | |
1350 | } | |
1351 | kctl->private_free = usb_mixer_elem_free; | |
1352 | ||
c3a3e040 | 1353 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1354 | if (! len) |
1355 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); | |
1356 | if (! len) | |
1357 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); | |
08d1e635 | 1358 | append_ctl_name(kctl, " Volume"); |
1da177e4 LT |
1359 | |
1360 | snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", | |
1361 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
ef9d5970 | 1362 | snd_usb_mixer_add_control(state->mixer, kctl); |
1da177e4 LT |
1363 | } |
1364 | ||
1365 | ||
1366 | /* | |
1367 | * parse a mixer unit | |
1368 | */ | |
99fc8645 | 1369 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1370 | { |
99fc8645 | 1371 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1372 | struct usb_audio_term iterm; |
1da177e4 LT |
1373 | int input_pins, num_ins, num_outs; |
1374 | int pin, ich, err; | |
1375 | ||
99fc8645 | 1376 | if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { |
1da177e4 LT |
1377 | snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); |
1378 | return -EINVAL; | |
1379 | } | |
1380 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
99fc8645 | 1381 | if (desc->bLength <= 10 + input_pins) { |
1da177e4 LT |
1382 | snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); |
1383 | return 0; | |
1384 | } | |
1385 | ||
1386 | num_ins = 0; | |
1387 | ich = 0; | |
1388 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1389 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 LT |
1390 | if (err < 0) |
1391 | return err; | |
99fc8645 | 1392 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1393 | if (err < 0) |
1394 | return err; | |
1395 | num_ins += iterm.channels; | |
1396 | for (; ich < num_ins; ++ich) { | |
1397 | int och, ich_has_controls = 0; | |
1398 | ||
1399 | for (och = 0; och < num_outs; ++och) { | |
23caaf19 | 1400 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), |
1da177e4 LT |
1401 | ich, och, num_outs)) { |
1402 | ich_has_controls = 1; | |
1403 | break; | |
1404 | } | |
1405 | } | |
1406 | if (ich_has_controls) | |
1407 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1408 | unitid, &iterm); | |
1409 | } | |
1410 | } | |
1411 | return 0; | |
1412 | } | |
1413 | ||
1414 | ||
1415 | /* | |
1416 | * Processing Unit / Extension Unit | |
1417 | */ | |
1418 | ||
1419 | /* get callback for processing/extension unit */ | |
86e07d34 | 1420 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1421 | { |
86e07d34 | 1422 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1423 | int err, val; |
1424 | ||
1425 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
84957a8a | 1426 | if (err < 0 && cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1427 | ucontrol->value.integer.value[0] = cval->min; |
1428 | return 0; | |
1429 | } | |
1430 | if (err < 0) | |
1431 | return err; | |
1432 | val = get_relative_value(cval, val); | |
1433 | ucontrol->value.integer.value[0] = val; | |
1434 | return 0; | |
1435 | } | |
1436 | ||
1437 | /* put callback for processing/extension unit */ | |
86e07d34 | 1438 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1439 | { |
86e07d34 | 1440 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1441 | int val, oval, err; |
1442 | ||
1443 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
1444 | if (err < 0) { | |
84957a8a | 1445 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1446 | return 0; |
1447 | return err; | |
1448 | } | |
1449 | val = ucontrol->value.integer.value[0]; | |
1450 | val = get_abs_value(cval, val); | |
1451 | if (val != oval) { | |
1452 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1453 | return 1; | |
1454 | } | |
1455 | return 0; | |
1456 | } | |
1457 | ||
1458 | /* alsa control interface for processing/extension unit */ | |
86e07d34 | 1459 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1460 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1461 | .name = "", /* will be filled later */ | |
1462 | .info = mixer_ctl_feature_info, | |
1463 | .get = mixer_ctl_procunit_get, | |
1464 | .put = mixer_ctl_procunit_put, | |
1465 | }; | |
1466 | ||
1467 | ||
1468 | /* | |
1469 | * predefined data for processing units | |
1470 | */ | |
1471 | struct procunit_value_info { | |
1472 | int control; | |
1473 | char *suffix; | |
1474 | int val_type; | |
1475 | int min_value; | |
1476 | }; | |
1477 | ||
1478 | struct procunit_info { | |
1479 | int type; | |
1480 | char *name; | |
1481 | struct procunit_value_info *values; | |
1482 | }; | |
1483 | ||
1484 | static struct procunit_value_info updown_proc_info[] = { | |
65f25da4 DM |
1485 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1486 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1487 | { 0 } |
1488 | }; | |
1489 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
1490 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1491 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1492 | { 0 } |
1493 | }; | |
1494 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
1495 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1496 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
1497 | { 0 } |
1498 | }; | |
1499 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
1500 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1501 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1502 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1503 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
1504 | { 0 } |
1505 | }; | |
1506 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
1507 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1508 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1509 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1510 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
1511 | { 0 } |
1512 | }; | |
1513 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
1514 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1515 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
1516 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
1517 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1518 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
1519 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
1520 | { 0 } |
1521 | }; | |
1522 | ||
1523 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
1524 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
1525 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1526 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
1527 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
1528 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
1529 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
1530 | { 0 }, |
1531 | }; | |
7d2b451e SK |
1532 | /* |
1533 | * predefined data for extension units | |
1534 | */ | |
1535 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1536 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1537 | { 0 } | |
7d2b451e SK |
1538 | }; |
1539 | static struct procunit_value_info clock_source_xu_info[] = { | |
1540 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1541 | { 0 } | |
1542 | }; | |
1543 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1544 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1545 | { 0 } | |
1546 | }; | |
1547 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1548 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1549 | { 0 } | |
1550 | }; | |
1551 | static struct procunit_info extunits[] = { | |
1552 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1553 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1554 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1555 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1556 | { 0 } | |
1557 | }; | |
1da177e4 LT |
1558 | /* |
1559 | * build a processing/extension unit | |
1560 | */ | |
99fc8645 | 1561 | static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) |
1da177e4 | 1562 | { |
99fc8645 DM |
1563 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1564 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1565 | struct usb_mixer_elem_info *cval; |
1566 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1567 | int i, err, nameid, type, len; |
1568 | struct procunit_info *info; | |
1569 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1570 | const struct usbmix_name_map *map; |
1da177e4 LT |
1571 | static struct procunit_value_info default_value_info[] = { |
1572 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1573 | { 0 } | |
1574 | }; | |
1575 | static struct procunit_info default_info = { | |
1576 | 0, NULL, default_value_info | |
1577 | }; | |
1578 | ||
23caaf19 DM |
1579 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1580 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
1da177e4 LT |
1581 | snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); |
1582 | return -EINVAL; | |
1583 | } | |
1584 | ||
1585 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1586 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1587 | return err; |
1588 | } | |
1589 | ||
99fc8645 | 1590 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1591 | for (info = list; info && info->type; info++) |
1592 | if (info->type == type) | |
1593 | break; | |
1594 | if (! info || ! info->type) | |
1595 | info = &default_info; | |
1596 | ||
1597 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1598 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 DM |
1599 | |
1600 | if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) | |
1da177e4 | 1601 | continue; |
c3a3e040 JK |
1602 | map = find_map(state, unitid, valinfo->control); |
1603 | if (check_ignored_ctl(map)) | |
1da177e4 | 1604 | continue; |
561b220a | 1605 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1606 | if (! cval) { |
1607 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1608 | return -ENOMEM; | |
1609 | } | |
84957a8a | 1610 | cval->mixer = state->mixer; |
1da177e4 LT |
1611 | cval->id = unitid; |
1612 | cval->control = valinfo->control; | |
1613 | cval->val_type = valinfo->val_type; | |
1614 | cval->channels = 1; | |
1615 | ||
1616 | /* get min/max values */ | |
65f25da4 | 1617 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
23caaf19 | 1618 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1619 | /* FIXME: hard-coded */ |
1620 | cval->min = 1; | |
99fc8645 | 1621 | cval->max = control_spec[0]; |
1da177e4 LT |
1622 | cval->res = 1; |
1623 | cval->initialized = 1; | |
7d2b451e SK |
1624 | } else { |
1625 | if (type == USB_XU_CLOCK_RATE) { | |
1cdfa9f3 | 1626 | /* E-Mu USB 0404/0202/TrackerPre/0204 |
7d2b451e SK |
1627 | * samplerate control quirk |
1628 | */ | |
1629 | cval->min = 0; | |
1630 | cval->max = 5; | |
1631 | cval->res = 1; | |
1632 | cval->initialized = 1; | |
1633 | } else | |
1634 | get_min_max(cval, valinfo->min_value); | |
1635 | } | |
1da177e4 LT |
1636 | |
1637 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
1638 | if (! kctl) { | |
1639 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1640 | kfree(cval); | |
1641 | return -ENOMEM; | |
1642 | } | |
1643 | kctl->private_free = usb_mixer_elem_free; | |
1644 | ||
c3a3e040 JK |
1645 | if (check_mapped_name(map, kctl->id.name, |
1646 | sizeof(kctl->id.name))) | |
1647 | /* nothing */ ; | |
1da177e4 LT |
1648 | else if (info->name) |
1649 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); | |
1650 | else { | |
23caaf19 | 1651 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1652 | len = 0; |
1653 | if (nameid) | |
1654 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1655 | if (! len) | |
1656 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); | |
1657 | } | |
08d1e635 TI |
1658 | append_ctl_name(kctl, " "); |
1659 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 LT |
1660 | |
1661 | snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", | |
1662 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
ef9d5970 | 1663 | if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) |
1da177e4 LT |
1664 | return err; |
1665 | } | |
1666 | return 0; | |
1667 | } | |
1668 | ||
1669 | ||
99fc8645 | 1670 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1671 | { |
99fc8645 | 1672 | return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); |
1da177e4 LT |
1673 | } |
1674 | ||
99fc8645 | 1675 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1676 | { |
99fc8645 DM |
1677 | /* Note that we parse extension units with processing unit descriptors. |
1678 | * That's ok as the layout is the same */ | |
1679 | return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); | |
1da177e4 LT |
1680 | } |
1681 | ||
1682 | ||
1683 | /* | |
1684 | * Selector Unit | |
1685 | */ | |
1686 | ||
1687 | /* info callback for selector unit | |
1688 | * use an enumerator type for routing | |
1689 | */ | |
86e07d34 | 1690 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 1691 | { |
86e07d34 | 1692 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
2a1803a7 | 1693 | const char **itemlist = (const char **)kcontrol->private_value; |
1da177e4 | 1694 | |
5e246b85 TI |
1695 | if (snd_BUG_ON(!itemlist)) |
1696 | return -EINVAL; | |
2a1803a7 | 1697 | return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); |
1da177e4 LT |
1698 | } |
1699 | ||
1700 | /* get callback for selector unit */ | |
86e07d34 | 1701 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1702 | { |
86e07d34 | 1703 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1704 | int val, err; |
1705 | ||
09414207 | 1706 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 1707 | if (err < 0) { |
84957a8a | 1708 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1709 | ucontrol->value.enumerated.item[0] = 0; |
1710 | return 0; | |
1711 | } | |
1712 | return err; | |
1713 | } | |
1714 | val = get_relative_value(cval, val); | |
1715 | ucontrol->value.enumerated.item[0] = val; | |
1716 | return 0; | |
1717 | } | |
1718 | ||
1719 | /* put callback for selector unit */ | |
86e07d34 | 1720 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1721 | { |
86e07d34 | 1722 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1723 | int val, oval, err; |
1724 | ||
09414207 | 1725 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
1da177e4 | 1726 | if (err < 0) { |
84957a8a | 1727 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1728 | return 0; |
1729 | return err; | |
1730 | } | |
1731 | val = ucontrol->value.enumerated.item[0]; | |
1732 | val = get_abs_value(cval, val); | |
1733 | if (val != oval) { | |
09414207 | 1734 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
1735 | return 1; |
1736 | } | |
1737 | return 0; | |
1738 | } | |
1739 | ||
1740 | /* alsa control interface for selector unit */ | |
86e07d34 | 1741 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
1742 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1743 | .name = "", /* will be filled later */ | |
1744 | .info = mixer_ctl_selector_info, | |
1745 | .get = mixer_ctl_selector_get, | |
1746 | .put = mixer_ctl_selector_put, | |
1747 | }; | |
1748 | ||
1749 | ||
1750 | /* private free callback. | |
1751 | * free both private_data and private_value | |
1752 | */ | |
86e07d34 | 1753 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
1754 | { |
1755 | int i, num_ins = 0; | |
1756 | ||
1757 | if (kctl->private_data) { | |
86e07d34 | 1758 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
1759 | num_ins = cval->max; |
1760 | kfree(cval); | |
1761 | kctl->private_data = NULL; | |
1762 | } | |
1763 | if (kctl->private_value) { | |
1764 | char **itemlist = (char **)kctl->private_value; | |
1765 | for (i = 0; i < num_ins; i++) | |
1766 | kfree(itemlist[i]); | |
1767 | kfree(itemlist); | |
1768 | kctl->private_value = 0; | |
1769 | } | |
1770 | } | |
1771 | ||
1772 | /* | |
1773 | * parse a selector unit | |
1774 | */ | |
99fc8645 | 1775 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1776 | { |
99fc8645 | 1777 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1778 | unsigned int i, nameid, len; |
1779 | int err; | |
86e07d34 TI |
1780 | struct usb_mixer_elem_info *cval; |
1781 | struct snd_kcontrol *kctl; | |
c3a3e040 | 1782 | const struct usbmix_name_map *map; |
1da177e4 LT |
1783 | char **namelist; |
1784 | ||
99fc8645 | 1785 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
1da177e4 LT |
1786 | snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); |
1787 | return -EINVAL; | |
1788 | } | |
1789 | ||
99fc8645 DM |
1790 | for (i = 0; i < desc->bNrInPins; i++) { |
1791 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
1792 | return err; |
1793 | } | |
1794 | ||
99fc8645 | 1795 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
1796 | return 0; |
1797 | ||
c3a3e040 JK |
1798 | map = find_map(state, unitid, 0); |
1799 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1800 | return 0; |
1801 | ||
561b220a | 1802 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1803 | if (! cval) { |
1804 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1805 | return -ENOMEM; | |
1806 | } | |
84957a8a | 1807 | cval->mixer = state->mixer; |
1da177e4 LT |
1808 | cval->id = unitid; |
1809 | cval->val_type = USB_MIXER_U8; | |
1810 | cval->channels = 1; | |
1811 | cval->min = 1; | |
99fc8645 | 1812 | cval->max = desc->bNrInPins; |
1da177e4 LT |
1813 | cval->res = 1; |
1814 | cval->initialized = 1; | |
1815 | ||
09414207 DM |
1816 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
1817 | cval->control = UAC2_CX_CLOCK_SELECTOR; | |
1818 | else | |
1819 | cval->control = 0; | |
1820 | ||
99fc8645 | 1821 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
1da177e4 LT |
1822 | if (! namelist) { |
1823 | snd_printk(KERN_ERR "cannot malloc\n"); | |
1824 | kfree(cval); | |
1825 | return -ENOMEM; | |
1826 | } | |
1827 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 1828 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 1829 | struct usb_audio_term iterm; |
1da177e4 LT |
1830 | len = 0; |
1831 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
1832 | if (! namelist[i]) { | |
1833 | snd_printk(KERN_ERR "cannot malloc\n"); | |
7fbe3ca5 | 1834 | while (i--) |
1da177e4 LT |
1835 | kfree(namelist[i]); |
1836 | kfree(namelist); | |
1837 | kfree(cval); | |
1838 | return -ENOMEM; | |
1839 | } | |
8e062ec7 CL |
1840 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
1841 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 1842 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
1843 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
1844 | if (! len) | |
1845 | sprintf(namelist[i], "Input %d", i); | |
1846 | } | |
1847 | ||
1848 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
1849 | if (! kctl) { | |
1850 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
878b4789 | 1851 | kfree(namelist); |
1da177e4 LT |
1852 | kfree(cval); |
1853 | return -ENOMEM; | |
1854 | } | |
1855 | kctl->private_value = (unsigned long)namelist; | |
1856 | kctl->private_free = usb_mixer_selector_elem_free; | |
1857 | ||
99fc8645 | 1858 | nameid = uac_selector_unit_iSelector(desc); |
c3a3e040 | 1859 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1860 | if (len) |
1861 | ; | |
1862 | else if (nameid) | |
1863 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1864 | else { | |
1865 | len = get_term_name(state, &state->oterm, | |
1866 | kctl->id.name, sizeof(kctl->id.name), 0); | |
1867 | if (! len) | |
1868 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); | |
1869 | ||
09414207 DM |
1870 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
1871 | append_ctl_name(kctl, " Clock Source"); | |
1872 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 1873 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 1874 | else |
08d1e635 | 1875 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
1876 | } |
1877 | ||
1878 | snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", | |
99fc8645 | 1879 | cval->id, kctl->id.name, desc->bNrInPins); |
ef9d5970 | 1880 | if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) |
1da177e4 LT |
1881 | return err; |
1882 | ||
1883 | return 0; | |
1884 | } | |
1885 | ||
1886 | ||
1887 | /* | |
1888 | * parse an audio unit recursively | |
1889 | */ | |
1890 | ||
86e07d34 | 1891 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
1892 | { |
1893 | unsigned char *p1; | |
1894 | ||
1895 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
1896 | return 0; /* the unit already visited */ | |
1897 | ||
1898 | p1 = find_audio_control_unit(state, unitid); | |
1899 | if (!p1) { | |
1900 | snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); | |
1901 | return -EINVAL; | |
1902 | } | |
1903 | ||
1904 | switch (p1[2]) { | |
de48c7bc | 1905 | case UAC_INPUT_TERMINAL: |
09414207 | 1906 | case UAC2_CLOCK_SOURCE: |
1da177e4 | 1907 | return 0; /* NOP */ |
de48c7bc | 1908 | case UAC_MIXER_UNIT: |
1da177e4 | 1909 | return parse_audio_mixer_unit(state, unitid, p1); |
de48c7bc | 1910 | case UAC_SELECTOR_UNIT: |
09414207 | 1911 | case UAC2_CLOCK_SELECTOR: |
1da177e4 | 1912 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 1913 | case UAC_FEATURE_UNIT: |
1da177e4 | 1914 | return parse_audio_feature_unit(state, unitid, p1); |
69da9bcb | 1915 | case UAC1_PROCESSING_UNIT: |
23caaf19 DM |
1916 | /* UAC2_EFFECT_UNIT has the same value */ |
1917 | if (state->mixer->protocol == UAC_VERSION_1) | |
1918 | return parse_audio_processing_unit(state, unitid, p1); | |
1919 | else | |
1920 | return 0; /* FIXME - effect units not implemented yet */ | |
69da9bcb | 1921 | case UAC1_EXTENSION_UNIT: |
23caaf19 DM |
1922 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
1923 | if (state->mixer->protocol == UAC_VERSION_1) | |
1924 | return parse_audio_extension_unit(state, unitid, p1); | |
1925 | else /* UAC_VERSION_2 */ | |
1926 | return parse_audio_processing_unit(state, unitid, p1); | |
1da177e4 LT |
1927 | default: |
1928 | snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1929 | return -EINVAL; | |
1930 | } | |
1931 | } | |
1932 | ||
84957a8a CL |
1933 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
1934 | { | |
6639b6c2 CL |
1935 | kfree(mixer->id_elems); |
1936 | if (mixer->urb) { | |
1937 | kfree(mixer->urb->transfer_buffer); | |
1938 | usb_free_urb(mixer->urb); | |
1939 | } | |
68df9de1 | 1940 | usb_free_urb(mixer->rc_urb); |
b259b10c | 1941 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
1942 | kfree(mixer); |
1943 | } | |
1944 | ||
86e07d34 | 1945 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
1946 | { |
1947 | struct usb_mixer_interface *mixer = device->device_data; | |
1948 | snd_usb_mixer_free(mixer); | |
1949 | return 0; | |
1950 | } | |
1951 | ||
1da177e4 LT |
1952 | /* |
1953 | * create mixer controls | |
1954 | * | |
de48c7bc | 1955 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 1956 | */ |
84957a8a | 1957 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 1958 | { |
86e07d34 | 1959 | struct mixer_build state; |
1da177e4 LT |
1960 | int err; |
1961 | const struct usbmix_ctl_map *map; | |
23caaf19 | 1962 | void *p; |
1da177e4 LT |
1963 | |
1964 | memset(&state, 0, sizeof(state)); | |
84957a8a CL |
1965 | state.chip = mixer->chip; |
1966 | state.mixer = mixer; | |
1faa5d07 DM |
1967 | state.buffer = mixer->hostif->extra; |
1968 | state.buflen = mixer->hostif->extralen; | |
1da177e4 LT |
1969 | |
1970 | /* check the mapping table */ | |
27d10f56 CL |
1971 | for (map = usbmix_ctl_maps; map->id; map++) { |
1972 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 1973 | state.map = map->map; |
8e062ec7 | 1974 | state.selector_map = map->selector_map; |
84957a8a | 1975 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
1976 | break; |
1977 | } | |
1978 | } | |
1da177e4 | 1979 | |
23caaf19 | 1980 | p = NULL; |
1faa5d07 DM |
1981 | while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, mixer->hostif->extralen, |
1982 | p, UAC_OUTPUT_TERMINAL)) != NULL) { | |
23caaf19 | 1983 | if (mixer->protocol == UAC_VERSION_1) { |
69da9bcb | 1984 | struct uac1_output_terminal_descriptor *desc = p; |
23caaf19 DM |
1985 | |
1986 | if (desc->bLength < sizeof(*desc)) | |
1987 | continue; /* invalid descriptor? */ | |
1988 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
1989 | state.oterm.id = desc->bTerminalID; | |
1990 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
1991 | state.oterm.name = desc->iTerminal; | |
1992 | err = parse_audio_unit(&state, desc->bSourceID); | |
1993 | if (err < 0) | |
1994 | return err; | |
1995 | } else { /* UAC_VERSION_2 */ | |
1996 | struct uac2_output_terminal_descriptor *desc = p; | |
1997 | ||
1998 | if (desc->bLength < sizeof(*desc)) | |
1999 | continue; /* invalid descriptor? */ | |
2000 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
2001 | state.oterm.id = desc->bTerminalID; | |
2002 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2003 | state.oterm.name = desc->iTerminal; | |
2004 | err = parse_audio_unit(&state, desc->bSourceID); | |
2005 | if (err < 0) | |
2006 | return err; | |
09414207 DM |
2007 | |
2008 | /* for UAC2, use the same approach to also add the clock selectors */ | |
2009 | err = parse_audio_unit(&state, desc->bCSourceID); | |
2010 | if (err < 0) | |
2011 | return err; | |
23caaf19 | 2012 | } |
1da177e4 | 2013 | } |
23caaf19 | 2014 | |
1da177e4 LT |
2015 | return 0; |
2016 | } | |
84957a8a | 2017 | |
7b1eda22 | 2018 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 2019 | { |
86e07d34 | 2020 | struct usb_mixer_elem_info *info; |
6639b6c2 CL |
2021 | |
2022 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) | |
2023 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2024 | info->elem_id); | |
2025 | } | |
2026 | ||
ebfdeea3 JK |
2027 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
2028 | int unitid, | |
2029 | struct usb_mixer_elem_info *cval) | |
2030 | { | |
2031 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", | |
2032 | "S8", "U8", "S16", "U16"}; | |
2033 | snd_iprintf(buffer, " Unit: %i\n", unitid); | |
2034 | if (cval->elem_id) | |
2035 | snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", | |
2036 | cval->elem_id->name, cval->elem_id->index); | |
2037 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " | |
2038 | "channels=%i, type=\"%s\"\n", cval->id, | |
2039 | cval->control, cval->cmask, cval->channels, | |
2040 | val_types[cval->val_type]); | |
2041 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
2042 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
2043 | } | |
2044 | ||
2045 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
2046 | struct snd_info_buffer *buffer) | |
2047 | { | |
2048 | struct snd_usb_audio *chip = entry->private_data; | |
2049 | struct usb_mixer_interface *mixer; | |
2050 | struct usb_mixer_elem_info *cval; | |
2051 | int unitid; | |
2052 | ||
2053 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
2054 | snd_iprintf(buffer, | |
7affdc17 | 2055 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
3d8d4dcf | 2056 | chip->usb_id, snd_usb_ctrl_intf(chip), |
7affdc17 | 2057 | mixer->ignore_ctl_error); |
ebfdeea3 JK |
2058 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
2059 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
2060 | for (cval = mixer->id_elems[unitid]; cval; | |
2061 | cval = cval->next_id_elem) | |
2062 | snd_usb_mixer_dump_cval(buffer, unitid, cval); | |
2063 | } | |
2064 | } | |
2065 | } | |
2066 | ||
e213e9cf DM |
2067 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
2068 | int attribute, int value, int index) | |
2069 | { | |
2070 | struct usb_mixer_elem_info *info; | |
2071 | __u8 unitid = (index >> 8) & 0xff; | |
2072 | __u8 control = (value >> 8) & 0xff; | |
2073 | __u8 channel = value & 0xff; | |
2074 | ||
2075 | if (channel >= MAX_CHANNELS) { | |
2076 | snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", | |
2077 | __func__, channel); | |
2078 | return; | |
2079 | } | |
2080 | ||
2081 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { | |
2082 | if (info->control != control) | |
2083 | continue; | |
2084 | ||
2085 | switch (attribute) { | |
2086 | case UAC2_CS_CUR: | |
2087 | /* invalidate cache, so the value is read from the device */ | |
2088 | if (channel) | |
2089 | info->cached &= ~(1 << channel); | |
2090 | else /* master channel */ | |
2091 | info->cached = 0; | |
2092 | ||
2093 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2094 | info->elem_id); | |
2095 | break; | |
2096 | ||
2097 | case UAC2_CS_RANGE: | |
2098 | /* TODO */ | |
2099 | break; | |
2100 | ||
2101 | case UAC2_CS_MEM: | |
2102 | /* TODO */ | |
2103 | break; | |
2104 | ||
2105 | default: | |
2106 | snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", | |
2107 | attribute); | |
2108 | break; | |
2109 | } /* switch */ | |
2110 | } | |
2111 | } | |
2112 | ||
2113 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2114 | { |
2115 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf | 2116 | int len = urb->actual_length; |
edf7de31 | 2117 | int ustatus = urb->status; |
e213e9cf | 2118 | |
edf7de31 | 2119 | if (ustatus != 0) |
e213e9cf | 2120 | goto requeue; |
6639b6c2 | 2121 | |
e213e9cf DM |
2122 | if (mixer->protocol == UAC_VERSION_1) { |
2123 | struct uac1_status_word *status; | |
6639b6c2 | 2124 | |
e213e9cf DM |
2125 | for (status = urb->transfer_buffer; |
2126 | len >= sizeof(*status); | |
2127 | len -= sizeof(*status), status++) { | |
6639b6c2 | 2128 | snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", |
e213e9cf DM |
2129 | status->bStatusType, |
2130 | status->bOriginator); | |
2131 | ||
6639b6c2 | 2132 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2133 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2134 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2135 | continue; |
e213e9cf DM |
2136 | |
2137 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2138 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2139 | else |
e213e9cf DM |
2140 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2141 | } | |
2142 | } else { /* UAC_VERSION_2 */ | |
2143 | struct uac2_interrupt_data_msg *msg; | |
2144 | ||
2145 | for (msg = urb->transfer_buffer; | |
2146 | len >= sizeof(*msg); | |
2147 | len -= sizeof(*msg), msg++) { | |
2148 | /* drop vendor specific and endpoint requests */ | |
2149 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2150 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2151 | continue; | |
2152 | ||
2153 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2154 | le16_to_cpu(msg->wValue), | |
2155 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2156 | } |
2157 | } | |
e213e9cf DM |
2158 | |
2159 | requeue: | |
edf7de31 | 2160 | if (ustatus != -ENOENT && ustatus != -ECONNRESET && ustatus != -ESHUTDOWN) { |
6639b6c2 CL |
2161 | urb->dev = mixer->chip->dev; |
2162 | usb_submit_urb(urb, GFP_ATOMIC); | |
2163 | } | |
2164 | } | |
2165 | ||
edf7de31 ON |
2166 | /* stop any bus activity of a mixer */ |
2167 | void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) | |
2168 | { | |
2169 | usb_kill_urb(mixer->urb); | |
2170 | usb_kill_urb(mixer->rc_urb); | |
2171 | } | |
2172 | ||
2173 | int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) | |
2174 | { | |
2175 | int err; | |
2176 | ||
2177 | if (mixer->urb) { | |
2178 | err = usb_submit_urb(mixer->urb, GFP_NOIO); | |
2179 | if (err < 0) | |
2180 | return err; | |
2181 | } | |
2182 | ||
2183 | return 0; | |
2184 | } | |
2185 | ||
6639b6c2 CL |
2186 | /* create the handler for the optional status interrupt endpoint */ |
2187 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2188 | { | |
6639b6c2 CL |
2189 | struct usb_endpoint_descriptor *ep; |
2190 | void *transfer_buffer; | |
2191 | int buffer_length; | |
2192 | unsigned int epnum; | |
2193 | ||
6639b6c2 | 2194 | /* we need one interrupt input endpoint */ |
1faa5d07 | 2195 | if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) |
6639b6c2 | 2196 | return 0; |
1faa5d07 | 2197 | ep = get_endpoint(mixer->hostif, 0); |
913ae5a2 | 2198 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2199 | return 0; |
2200 | ||
42a6e66f | 2201 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2202 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2203 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2204 | if (!transfer_buffer) | |
2205 | return -ENOMEM; | |
2206 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2207 | if (!mixer->urb) { | |
2208 | kfree(transfer_buffer); | |
2209 | return -ENOMEM; | |
2210 | } | |
2211 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2212 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2213 | transfer_buffer, buffer_length, | |
e213e9cf | 2214 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2215 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2216 | return 0; | |
2217 | } | |
2218 | ||
7a9b8063 TI |
2219 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2220 | int ignore_error) | |
84957a8a | 2221 | { |
86e07d34 | 2222 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2223 | .dev_free = snd_usb_mixer_dev_free |
2224 | }; | |
2225 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2226 | struct snd_info_entry *entry; |
23caaf19 | 2227 | int err; |
84957a8a CL |
2228 | |
2229 | strcpy(chip->card->mixername, "USB Mixer"); | |
2230 | ||
561b220a | 2231 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2232 | if (!mixer) |
2233 | return -ENOMEM; | |
2234 | mixer->chip = chip; | |
7a9b8063 | 2235 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2236 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2237 | GFP_KERNEL); | |
6639b6c2 CL |
2238 | if (!mixer->id_elems) { |
2239 | kfree(mixer); | |
2240 | return -ENOMEM; | |
2241 | } | |
84957a8a | 2242 | |
1faa5d07 DM |
2243 | mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
2244 | switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { | |
a2acad82 CL |
2245 | case UAC_VERSION_1: |
2246 | default: | |
2247 | mixer->protocol = UAC_VERSION_1; | |
2248 | break; | |
2249 | case UAC_VERSION_2: | |
2250 | mixer->protocol = UAC_VERSION_2; | |
2251 | break; | |
2252 | } | |
7b8a043f | 2253 | |
6639b6c2 | 2254 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2255 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2256 | goto _error; | |
84957a8a | 2257 | |
7b1eda22 | 2258 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2259 | |
84957a8a | 2260 | err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); |
93446edc CL |
2261 | if (err < 0) |
2262 | goto _error; | |
ebfdeea3 JK |
2263 | |
2264 | if (list_empty(&chip->mixer_list) && | |
2265 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2266 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2267 | ||
84957a8a CL |
2268 | list_add(&mixer->list, &chip->mixer_list); |
2269 | return 0; | |
93446edc CL |
2270 | |
2271 | _error: | |
2272 | snd_usb_mixer_free(mixer); | |
2273 | return err; | |
84957a8a CL |
2274 | } |
2275 | ||
2276 | void snd_usb_mixer_disconnect(struct list_head *p) | |
2277 | { | |
6639b6c2 | 2278 | struct usb_mixer_interface *mixer; |
7b1eda22 | 2279 | |
6639b6c2 | 2280 | mixer = list_entry(p, struct usb_mixer_interface, list); |
68df9de1 MK |
2281 | usb_kill_urb(mixer->urb); |
2282 | usb_kill_urb(mixer->rc_urb); | |
84957a8a | 2283 | } |