Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * (Tentative) USB Audio Driver for ALSA | |
3 | * | |
4 | * Mixer control part | |
5 | * | |
6 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> | |
7 | * | |
8 | * Many codes borrowed from audio.c by | |
9 | * Alan Cox (alan@lxorguk.ukuu.org.uk) | |
10 | * Thomas Sailer (sailer@ife.ee.ethz.ch) | |
11 | * | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License as published by | |
15 | * the Free Software Foundation; either version 2 of the License, or | |
16 | * (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
26 | * | |
27 | */ | |
28 | ||
29 | #include <sound/driver.h> | |
30 | #include <linux/bitops.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/list.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/usb.h> | |
36 | #include <sound/core.h> | |
37 | #include <sound/control.h> | |
b259b10c | 38 | #include <sound/hwdep.h> |
aafad562 | 39 | #include <sound/info.h> |
7bc5ba7e | 40 | #include <sound/tlv.h> |
1da177e4 LT |
41 | |
42 | #include "usbaudio.h" | |
43 | ||
1da177e4 LT |
44 | /* |
45 | */ | |
46 | ||
47 | /* ignore error from controls - for debugging */ | |
48 | /* #define IGNORE_CTL_ERROR */ | |
49 | ||
4d1a70da RC |
50 | /* |
51 | * Sound Blaster remote control configuration | |
52 | * | |
53 | * format of remote control data: | |
54 | * Extigy: xx 00 | |
55 | * Audigy 2 NX: 06 80 xx 00 00 00 | |
56 | * Live! 24-bit: 06 80 xx yy 22 83 | |
57 | */ | |
58 | static const struct rc_config { | |
59 | u32 usb_id; | |
60 | u8 offset; | |
61 | u8 length; | |
62 | u8 packet_length; | |
63 | u8 mute_mixer_id; | |
64 | u32 mute_code; | |
65 | } rc_configs[] = { | |
66 | { USB_ID(0x041e, 0x3000), 0, 1, 2, 18, 0x0013 }, /* Extigy */ | |
67 | { USB_ID(0x041e, 0x3020), 2, 1, 6, 18, 0x0013 }, /* Audigy 2 NX */ | |
68 | { USB_ID(0x041e, 0x3040), 2, 2, 6, 2, 0x6e91 }, /* Live! 24-bit */ | |
69 | }; | |
70 | ||
84957a8a | 71 | struct usb_mixer_interface { |
86e07d34 | 72 | struct snd_usb_audio *chip; |
84957a8a CL |
73 | unsigned int ctrlif; |
74 | struct list_head list; | |
75 | unsigned int ignore_ctl_error; | |
6639b6c2 | 76 | struct urb *urb; |
86e07d34 | 77 | struct usb_mixer_elem_info **id_elems; /* array[256], indexed by unit id */ |
b259b10c CL |
78 | |
79 | /* Sound Blaster remote control stuff */ | |
4d1a70da | 80 | const struct rc_config *rc_cfg; |
b259b10c CL |
81 | unsigned long rc_hwdep_open; |
82 | u32 rc_code; | |
83 | wait_queue_head_t rc_waitq; | |
84 | struct urb *rc_urb; | |
85 | struct usb_ctrlrequest *rc_setup_packet; | |
86 | u8 rc_buffer[6]; | |
93446edc CL |
87 | |
88 | u8 audigy2nx_leds[3]; | |
84957a8a CL |
89 | }; |
90 | ||
91 | ||
1da177e4 LT |
92 | struct usb_audio_term { |
93 | int id; | |
94 | int type; | |
95 | int channels; | |
96 | unsigned int chconfig; | |
97 | int name; | |
98 | }; | |
99 | ||
100 | struct usbmix_name_map; | |
101 | ||
86e07d34 TI |
102 | struct mixer_build { |
103 | struct snd_usb_audio *chip; | |
84957a8a | 104 | struct usb_mixer_interface *mixer; |
1da177e4 LT |
105 | unsigned char *buffer; |
106 | unsigned int buflen; | |
707e6073 | 107 | DECLARE_BITMAP(unitbitmap, 256); |
86e07d34 | 108 | struct usb_audio_term oterm; |
1da177e4 | 109 | const struct usbmix_name_map *map; |
8e062ec7 | 110 | const struct usbmix_selector_map *selector_map; |
1da177e4 LT |
111 | }; |
112 | ||
113 | struct usb_mixer_elem_info { | |
84957a8a | 114 | struct usb_mixer_interface *mixer; |
86e07d34 TI |
115 | struct usb_mixer_elem_info *next_id_elem; /* list of controls with same id */ |
116 | struct snd_ctl_elem_id *elem_id; | |
1da177e4 LT |
117 | unsigned int id; |
118 | unsigned int control; /* CS or ICN (high byte) */ | |
119 | unsigned int cmask; /* channel mask bitmap: 0 = master */ | |
120 | int channels; | |
121 | int val_type; | |
122 | int min, max, res; | |
6639b6c2 | 123 | u8 initialized; |
1da177e4 LT |
124 | }; |
125 | ||
126 | ||
127 | enum { | |
128 | USB_FEATURE_NONE = 0, | |
129 | USB_FEATURE_MUTE = 1, | |
130 | USB_FEATURE_VOLUME, | |
131 | USB_FEATURE_BASS, | |
132 | USB_FEATURE_MID, | |
133 | USB_FEATURE_TREBLE, | |
134 | USB_FEATURE_GEQ, | |
135 | USB_FEATURE_AGC, | |
136 | USB_FEATURE_DELAY, | |
137 | USB_FEATURE_BASSBOOST, | |
138 | USB_FEATURE_LOUDNESS | |
139 | }; | |
140 | ||
141 | enum { | |
142 | USB_MIXER_BOOLEAN, | |
143 | USB_MIXER_INV_BOOLEAN, | |
144 | USB_MIXER_S8, | |
145 | USB_MIXER_U8, | |
146 | USB_MIXER_S16, | |
147 | USB_MIXER_U16, | |
148 | }; | |
149 | ||
150 | enum { | |
151 | USB_PROC_UPDOWN = 1, | |
152 | USB_PROC_UPDOWN_SWITCH = 1, | |
153 | USB_PROC_UPDOWN_MODE_SEL = 2, | |
154 | ||
155 | USB_PROC_PROLOGIC = 2, | |
156 | USB_PROC_PROLOGIC_SWITCH = 1, | |
157 | USB_PROC_PROLOGIC_MODE_SEL = 2, | |
158 | ||
159 | USB_PROC_3DENH = 3, | |
160 | USB_PROC_3DENH_SWITCH = 1, | |
161 | USB_PROC_3DENH_SPACE = 2, | |
162 | ||
163 | USB_PROC_REVERB = 4, | |
164 | USB_PROC_REVERB_SWITCH = 1, | |
165 | USB_PROC_REVERB_LEVEL = 2, | |
166 | USB_PROC_REVERB_TIME = 3, | |
167 | USB_PROC_REVERB_DELAY = 4, | |
168 | ||
169 | USB_PROC_CHORUS = 5, | |
170 | USB_PROC_CHORUS_SWITCH = 1, | |
171 | USB_PROC_CHORUS_LEVEL = 2, | |
172 | USB_PROC_CHORUS_RATE = 3, | |
173 | USB_PROC_CHORUS_DEPTH = 4, | |
174 | ||
175 | USB_PROC_DCR = 6, | |
176 | USB_PROC_DCR_SWITCH = 1, | |
177 | USB_PROC_DCR_RATIO = 2, | |
178 | USB_PROC_DCR_MAX_AMP = 3, | |
179 | USB_PROC_DCR_THRESHOLD = 4, | |
180 | USB_PROC_DCR_ATTACK = 5, | |
181 | USB_PROC_DCR_RELEASE = 6, | |
182 | }; | |
183 | ||
184 | #define MAX_CHANNELS 10 /* max logical channels */ | |
185 | ||
186 | ||
187 | /* | |
188 | * manual mapping of mixer names | |
189 | * if the mixer topology is too complicated and the parsed names are | |
190 | * ambiguous, add the entries in usbmixer_maps.c. | |
191 | */ | |
192 | #include "usbmixer_maps.c" | |
193 | ||
194 | /* get the mapped name if the unit matches */ | |
86e07d34 | 195 | static int check_mapped_name(struct mixer_build *state, int unitid, int control, char *buf, int buflen) |
1da177e4 LT |
196 | { |
197 | const struct usbmix_name_map *p; | |
198 | ||
199 | if (! state->map) | |
200 | return 0; | |
201 | ||
202 | for (p = state->map; p->id; p++) { | |
203 | if (p->id == unitid && p->name && | |
204 | (! control || ! p->control || control == p->control)) { | |
205 | buflen--; | |
206 | return strlcpy(buf, p->name, buflen); | |
207 | } | |
208 | } | |
209 | return 0; | |
210 | } | |
211 | ||
212 | /* check whether the control should be ignored */ | |
86e07d34 | 213 | static int check_ignored_ctl(struct mixer_build *state, int unitid, int control) |
1da177e4 LT |
214 | { |
215 | const struct usbmix_name_map *p; | |
216 | ||
217 | if (! state->map) | |
218 | return 0; | |
219 | for (p = state->map; p->id; p++) { | |
220 | if (p->id == unitid && ! p->name && | |
221 | (! control || ! p->control || control == p->control)) { | |
222 | // printk("ignored control %d:%d\n", unitid, control); | |
223 | return 1; | |
224 | } | |
225 | } | |
226 | return 0; | |
227 | } | |
228 | ||
8e062ec7 | 229 | /* get the mapped selector source name */ |
86e07d34 | 230 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
231 | int index, char *buf, int buflen) |
232 | { | |
233 | const struct usbmix_selector_map *p; | |
234 | ||
235 | if (! state->selector_map) | |
236 | return 0; | |
237 | for (p = state->selector_map; p->id; p++) { | |
238 | if (p->id == unitid && index < p->count) | |
239 | return strlcpy(buf, p->names[index], buflen); | |
240 | } | |
241 | return 0; | |
242 | } | |
243 | ||
1da177e4 LT |
244 | /* |
245 | * find an audio control unit with the given unit id | |
246 | */ | |
86e07d34 | 247 | static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) |
1da177e4 LT |
248 | { |
249 | unsigned char *p; | |
250 | ||
251 | p = NULL; | |
252 | while ((p = snd_usb_find_desc(state->buffer, state->buflen, p, | |
253 | USB_DT_CS_INTERFACE)) != NULL) { | |
254 | if (p[0] >= 4 && p[2] >= INPUT_TERMINAL && p[2] <= EXTENSION_UNIT && p[3] == unit) | |
255 | return p; | |
256 | } | |
257 | return NULL; | |
258 | } | |
259 | ||
260 | ||
261 | /* | |
262 | * copy a string with the given id | |
263 | */ | |
86e07d34 | 264 | static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) |
1da177e4 LT |
265 | { |
266 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
267 | buf[len] = 0; | |
268 | return len; | |
269 | } | |
270 | ||
271 | /* | |
272 | * convert from the byte/word on usb descriptor to the zero-based integer | |
273 | */ | |
86e07d34 | 274 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
275 | { |
276 | switch (cval->val_type) { | |
277 | case USB_MIXER_BOOLEAN: | |
278 | return !!val; | |
279 | case USB_MIXER_INV_BOOLEAN: | |
280 | return !val; | |
281 | case USB_MIXER_U8: | |
282 | val &= 0xff; | |
283 | break; | |
284 | case USB_MIXER_S8: | |
285 | val &= 0xff; | |
286 | if (val >= 0x80) | |
287 | val -= 0x100; | |
288 | break; | |
289 | case USB_MIXER_U16: | |
290 | val &= 0xffff; | |
291 | break; | |
292 | case USB_MIXER_S16: | |
293 | val &= 0xffff; | |
294 | if (val >= 0x8000) | |
295 | val -= 0x10000; | |
296 | break; | |
297 | } | |
298 | return val; | |
299 | } | |
300 | ||
301 | /* | |
302 | * convert from the zero-based int to the byte/word for usb descriptor | |
303 | */ | |
86e07d34 | 304 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
305 | { |
306 | switch (cval->val_type) { | |
307 | case USB_MIXER_BOOLEAN: | |
308 | return !!val; | |
309 | case USB_MIXER_INV_BOOLEAN: | |
310 | return !val; | |
311 | case USB_MIXER_S8: | |
312 | case USB_MIXER_U8: | |
313 | return val & 0xff; | |
314 | case USB_MIXER_S16: | |
315 | case USB_MIXER_U16: | |
316 | return val & 0xffff; | |
317 | } | |
318 | return 0; /* not reached */ | |
319 | } | |
320 | ||
86e07d34 | 321 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
322 | { |
323 | if (! cval->res) | |
324 | cval->res = 1; | |
325 | if (val < cval->min) | |
326 | return 0; | |
14790f1c TI |
327 | else if (val >= cval->max) |
328 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
329 | else |
330 | return (val - cval->min) / cval->res; | |
331 | } | |
332 | ||
86e07d34 | 333 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
334 | { |
335 | if (val < 0) | |
336 | return cval->min; | |
337 | if (! cval->res) | |
338 | cval->res = 1; | |
339 | val *= cval->res; | |
340 | val += cval->min; | |
341 | if (val > cval->max) | |
342 | return cval->max; | |
343 | return val; | |
344 | } | |
345 | ||
346 | ||
347 | /* | |
348 | * retrieve a mixer value | |
349 | */ | |
350 | ||
86e07d34 | 351 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
1da177e4 LT |
352 | { |
353 | unsigned char buf[2]; | |
354 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
355 | int timeout = 10; | |
356 | ||
357 | while (timeout-- > 0) { | |
84957a8a CL |
358 | if (snd_usb_ctl_msg(cval->mixer->chip->dev, |
359 | usb_rcvctrlpipe(cval->mixer->chip->dev, 0), | |
1da177e4 LT |
360 | request, |
361 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
84957a8a | 362 | validx, cval->mixer->ctrlif | (cval->id << 8), |
1da177e4 LT |
363 | buf, val_len, 100) >= 0) { |
364 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); | |
365 | return 0; | |
366 | } | |
367 | } | |
84957a8a CL |
368 | snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
369 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); | |
1da177e4 LT |
370 | return -EINVAL; |
371 | } | |
372 | ||
86e07d34 | 373 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) |
1da177e4 LT |
374 | { |
375 | return get_ctl_value(cval, GET_CUR, validx, value); | |
376 | } | |
377 | ||
378 | /* channel = 0: master, 1 = first channel */ | |
86e07d34 | 379 | static inline int get_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, int *value) |
1da177e4 LT |
380 | { |
381 | return get_ctl_value(cval, GET_CUR, (cval->control << 8) | channel, value); | |
382 | } | |
383 | ||
384 | /* | |
385 | * set a mixer value | |
386 | */ | |
387 | ||
86e07d34 | 388 | static int set_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int value_set) |
1da177e4 LT |
389 | { |
390 | unsigned char buf[2]; | |
391 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
392 | int timeout = 10; | |
393 | ||
394 | value_set = convert_bytes_value(cval, value_set); | |
395 | buf[0] = value_set & 0xff; | |
396 | buf[1] = (value_set >> 8) & 0xff; | |
397 | while (timeout -- > 0) | |
84957a8a CL |
398 | if (snd_usb_ctl_msg(cval->mixer->chip->dev, |
399 | usb_sndctrlpipe(cval->mixer->chip->dev, 0), | |
1da177e4 LT |
400 | request, |
401 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | |
84957a8a | 402 | validx, cval->mixer->ctrlif | (cval->id << 8), |
1da177e4 LT |
403 | buf, val_len, 100) >= 0) |
404 | return 0; | |
84957a8a CL |
405 | snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
406 | request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type, buf[0], buf[1]); | |
1da177e4 LT |
407 | return -EINVAL; |
408 | } | |
409 | ||
86e07d34 | 410 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) |
1da177e4 LT |
411 | { |
412 | return set_ctl_value(cval, SET_CUR, validx, value); | |
413 | } | |
414 | ||
86e07d34 | 415 | static inline int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, int value) |
1da177e4 LT |
416 | { |
417 | return set_ctl_value(cval, SET_CUR, (cval->control << 8) | channel, value); | |
418 | } | |
419 | ||
7bc5ba7e TI |
420 | /* |
421 | * TLV callback for mixer volume controls | |
422 | */ | |
423 | static int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, | |
424 | unsigned int size, unsigned int __user *_tlv) | |
425 | { | |
426 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
427 | DECLARE_TLV_DB_SCALE(scale, 0, 0, 0); | |
428 | ||
429 | if (size < sizeof(scale)) | |
430 | return -ENOMEM; | |
431 | /* USB descriptions contain the dB scale in 1/256 dB unit | |
432 | * while ALSA TLV contains in 1/100 dB unit | |
433 | */ | |
434 | scale[2] = (convert_signed_value(cval, cval->min) * 100) / 256; | |
435 | scale[3] = (convert_signed_value(cval, cval->res) * 100) / 256; | |
436 | if (copy_to_user(_tlv, scale, sizeof(scale))) | |
437 | return -EFAULT; | |
438 | return 0; | |
439 | } | |
1da177e4 LT |
440 | |
441 | /* | |
442 | * parser routines begin here... | |
443 | */ | |
444 | ||
86e07d34 | 445 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
446 | |
447 | ||
448 | /* | |
449 | * check if the input/output channel routing is enabled on the given bitmap. | |
450 | * used for mixer unit parser | |
451 | */ | |
452 | static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) | |
453 | { | |
454 | int idx = ich * num_outs + och; | |
455 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
456 | } | |
457 | ||
458 | ||
459 | /* | |
460 | * add an alsa control element | |
461 | * search and increment the index until an empty slot is found. | |
462 | * | |
463 | * if failed, give up and free the control instance. | |
464 | */ | |
465 | ||
86e07d34 | 466 | static int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl) |
1da177e4 | 467 | { |
86e07d34 | 468 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 469 | int err; |
84957a8a CL |
470 | |
471 | while (snd_ctl_find_id(state->chip->card, &kctl->id)) | |
1da177e4 | 472 | kctl->id.index++; |
84957a8a | 473 | if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) { |
1da177e4 | 474 | snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); |
6639b6c2 | 475 | return err; |
1da177e4 | 476 | } |
6639b6c2 CL |
477 | cval->elem_id = &kctl->id; |
478 | cval->next_id_elem = state->mixer->id_elems[cval->id]; | |
479 | state->mixer->id_elems[cval->id] = cval; | |
480 | return 0; | |
1da177e4 LT |
481 | } |
482 | ||
483 | ||
484 | /* | |
485 | * get a terminal name string | |
486 | */ | |
487 | ||
488 | static struct iterm_name_combo { | |
489 | int type; | |
490 | char *name; | |
491 | } iterm_names[] = { | |
492 | { 0x0300, "Output" }, | |
493 | { 0x0301, "Speaker" }, | |
494 | { 0x0302, "Headphone" }, | |
495 | { 0x0303, "HMD Audio" }, | |
496 | { 0x0304, "Desktop Speaker" }, | |
497 | { 0x0305, "Room Speaker" }, | |
498 | { 0x0306, "Com Speaker" }, | |
499 | { 0x0307, "LFE" }, | |
500 | { 0x0600, "External In" }, | |
501 | { 0x0601, "Analog In" }, | |
502 | { 0x0602, "Digital In" }, | |
503 | { 0x0603, "Line" }, | |
504 | { 0x0604, "Legacy In" }, | |
505 | { 0x0605, "IEC958 In" }, | |
506 | { 0x0606, "1394 DA Stream" }, | |
507 | { 0x0607, "1394 DV Stream" }, | |
508 | { 0x0700, "Embedded" }, | |
509 | { 0x0701, "Noise Source" }, | |
510 | { 0x0702, "Equalization Noise" }, | |
511 | { 0x0703, "CD" }, | |
512 | { 0x0704, "DAT" }, | |
513 | { 0x0705, "DCC" }, | |
514 | { 0x0706, "MiniDisk" }, | |
515 | { 0x0707, "Analog Tape" }, | |
516 | { 0x0708, "Phonograph" }, | |
517 | { 0x0709, "VCR Audio" }, | |
518 | { 0x070a, "Video Disk Audio" }, | |
519 | { 0x070b, "DVD Audio" }, | |
520 | { 0x070c, "TV Tuner Audio" }, | |
521 | { 0x070d, "Satellite Rec Audio" }, | |
522 | { 0x070e, "Cable Tuner Audio" }, | |
523 | { 0x070f, "DSS Audio" }, | |
524 | { 0x0710, "Radio Receiver" }, | |
525 | { 0x0711, "Radio Transmitter" }, | |
526 | { 0x0712, "Multi-Track Recorder" }, | |
527 | { 0x0713, "Synthesizer" }, | |
528 | { 0 }, | |
529 | }; | |
530 | ||
86e07d34 | 531 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
532 | unsigned char *name, int maxlen, int term_only) |
533 | { | |
534 | struct iterm_name_combo *names; | |
535 | ||
536 | if (iterm->name) | |
537 | return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); | |
538 | ||
539 | /* virtual type - not a real terminal */ | |
540 | if (iterm->type >> 16) { | |
541 | if (term_only) | |
542 | return 0; | |
543 | switch (iterm->type >> 16) { | |
544 | case SELECTOR_UNIT: | |
545 | strcpy(name, "Selector"); return 8; | |
546 | case PROCESSING_UNIT: | |
547 | strcpy(name, "Process Unit"); return 12; | |
548 | case EXTENSION_UNIT: | |
549 | strcpy(name, "Ext Unit"); return 8; | |
550 | case MIXER_UNIT: | |
551 | strcpy(name, "Mixer"); return 5; | |
552 | default: | |
553 | return sprintf(name, "Unit %d", iterm->id); | |
554 | } | |
555 | } | |
556 | ||
557 | switch (iterm->type & 0xff00) { | |
558 | case 0x0100: | |
559 | strcpy(name, "PCM"); return 3; | |
560 | case 0x0200: | |
561 | strcpy(name, "Mic"); return 3; | |
562 | case 0x0400: | |
563 | strcpy(name, "Headset"); return 7; | |
564 | case 0x0500: | |
565 | strcpy(name, "Phone"); return 5; | |
566 | } | |
567 | ||
568 | for (names = iterm_names; names->type; names++) | |
569 | if (names->type == iterm->type) { | |
570 | strcpy(name, names->name); | |
571 | return strlen(names->name); | |
572 | } | |
573 | return 0; | |
574 | } | |
575 | ||
576 | ||
577 | /* | |
578 | * parse the source unit recursively until it reaches to a terminal | |
579 | * or a branched unit. | |
580 | */ | |
86e07d34 | 581 | static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) |
1da177e4 LT |
582 | { |
583 | unsigned char *p1; | |
584 | ||
585 | memset(term, 0, sizeof(*term)); | |
586 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
587 | term->id = id; | |
588 | switch (p1[2]) { | |
589 | case INPUT_TERMINAL: | |
590 | term->type = combine_word(p1 + 4); | |
591 | term->channels = p1[7]; | |
592 | term->chconfig = combine_word(p1 + 8); | |
593 | term->name = p1[11]; | |
594 | return 0; | |
595 | case FEATURE_UNIT: | |
596 | id = p1[4]; | |
597 | break; /* continue to parse */ | |
598 | case MIXER_UNIT: | |
599 | term->type = p1[2] << 16; /* virtual type */ | |
600 | term->channels = p1[5 + p1[4]]; | |
601 | term->chconfig = combine_word(p1 + 6 + p1[4]); | |
602 | term->name = p1[p1[0] - 1]; | |
603 | return 0; | |
604 | case SELECTOR_UNIT: | |
605 | /* call recursively to retrieve the channel info */ | |
606 | if (check_input_term(state, p1[5], term) < 0) | |
607 | return -ENODEV; | |
608 | term->type = p1[2] << 16; /* virtual type */ | |
609 | term->id = id; | |
610 | term->name = p1[9 + p1[0] - 1]; | |
611 | return 0; | |
612 | case PROCESSING_UNIT: | |
613 | case EXTENSION_UNIT: | |
614 | if (p1[6] == 1) { | |
615 | id = p1[7]; | |
616 | break; /* continue to parse */ | |
617 | } | |
618 | term->type = p1[2] << 16; /* virtual type */ | |
619 | term->channels = p1[7 + p1[6]]; | |
620 | term->chconfig = combine_word(p1 + 8 + p1[6]); | |
621 | term->name = p1[12 + p1[6] + p1[11 + p1[6]]]; | |
622 | return 0; | |
623 | default: | |
624 | return -ENODEV; | |
625 | } | |
626 | } | |
627 | return -ENODEV; | |
628 | } | |
629 | ||
630 | ||
631 | /* | |
632 | * Feature Unit | |
633 | */ | |
634 | ||
635 | /* feature unit control information */ | |
636 | struct usb_feature_control_info { | |
637 | const char *name; | |
638 | unsigned int type; /* control type (mute, volume, etc.) */ | |
639 | }; | |
640 | ||
641 | static struct usb_feature_control_info audio_feature_info[] = { | |
642 | { "Mute", USB_MIXER_INV_BOOLEAN }, | |
643 | { "Volume", USB_MIXER_S16 }, | |
644 | { "Tone Control - Bass", USB_MIXER_S8 }, | |
645 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
646 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
647 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
648 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, | |
649 | { "Delay Control", USB_MIXER_U16 }, | |
650 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
651 | { "Loudness", USB_MIXER_BOOLEAN }, | |
652 | }; | |
653 | ||
654 | ||
655 | /* private_free callback */ | |
86e07d34 | 656 | static void usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 657 | { |
4d572776 JJ |
658 | kfree(kctl->private_data); |
659 | kctl->private_data = NULL; | |
1da177e4 LT |
660 | } |
661 | ||
662 | ||
663 | /* | |
664 | * interface to ALSA control for feature/mixer units | |
665 | */ | |
666 | ||
667 | /* | |
668 | * retrieve the minimum and maximum values for the specified control | |
669 | */ | |
86e07d34 | 670 | static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) |
1da177e4 LT |
671 | { |
672 | /* for failsafe */ | |
673 | cval->min = default_min; | |
674 | cval->max = cval->min + 1; | |
675 | cval->res = 1; | |
676 | ||
677 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
678 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
679 | cval->initialized = 1; | |
680 | } else { | |
681 | int minchn = 0; | |
682 | if (cval->cmask) { | |
683 | int i; | |
684 | for (i = 0; i < MAX_CHANNELS; i++) | |
685 | if (cval->cmask & (1 << i)) { | |
686 | minchn = i + 1; | |
687 | break; | |
688 | } | |
689 | } | |
690 | if (get_ctl_value(cval, GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || | |
691 | get_ctl_value(cval, GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
84957a8a CL |
692 | snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", |
693 | cval->id, cval->mixer->ctrlif, cval->control, cval->id); | |
1da177e4 LT |
694 | return -EINVAL; |
695 | } | |
696 | if (get_ctl_value(cval, GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { | |
697 | cval->res = 1; | |
698 | } else { | |
699 | int last_valid_res = cval->res; | |
700 | ||
701 | while (cval->res > 1) { | |
702 | if (set_ctl_value(cval, SET_RES, (cval->control << 8) | minchn, cval->res / 2) < 0) | |
703 | break; | |
704 | cval->res /= 2; | |
705 | } | |
706 | if (get_ctl_value(cval, GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) | |
707 | cval->res = last_valid_res; | |
708 | } | |
709 | if (cval->res == 0) | |
710 | cval->res = 1; | |
14790f1c TI |
711 | |
712 | /* Additional checks for the proper resolution | |
713 | * | |
714 | * Some devices report smaller resolutions than actually | |
715 | * reacting. They don't return errors but simply clip | |
716 | * to the lower aligned value. | |
717 | */ | |
718 | if (cval->min + cval->res < cval->max) { | |
719 | int last_valid_res = cval->res; | |
720 | int saved, test, check; | |
721 | get_cur_mix_value(cval, minchn, &saved); | |
722 | for (;;) { | |
723 | test = saved; | |
724 | if (test < cval->max) | |
725 | test += cval->res; | |
726 | else | |
727 | test -= cval->res; | |
728 | if (test < cval->min || test > cval->max || | |
729 | set_cur_mix_value(cval, minchn, test) || | |
730 | get_cur_mix_value(cval, minchn, &check)) { | |
731 | cval->res = last_valid_res; | |
732 | break; | |
733 | } | |
734 | if (test == check) | |
735 | break; | |
736 | cval->res *= 2; | |
737 | } | |
738 | set_cur_mix_value(cval, minchn, saved); | |
739 | } | |
740 | ||
1da177e4 LT |
741 | cval->initialized = 1; |
742 | } | |
743 | return 0; | |
744 | } | |
745 | ||
746 | ||
747 | /* get a feature/mixer unit info */ | |
86e07d34 | 748 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 749 | { |
86e07d34 | 750 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
751 | |
752 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
753 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
754 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
755 | else | |
756 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
757 | uinfo->count = cval->channels; | |
758 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
759 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
760 | uinfo->value.integer.min = 0; | |
761 | uinfo->value.integer.max = 1; | |
762 | } else { | |
763 | if (! cval->initialized) | |
764 | get_min_max(cval, 0); | |
765 | uinfo->value.integer.min = 0; | |
14790f1c TI |
766 | uinfo->value.integer.max = |
767 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
768 | } |
769 | return 0; | |
770 | } | |
771 | ||
772 | /* get the current value from feature/mixer unit */ | |
86e07d34 | 773 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 774 | { |
86e07d34 | 775 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
776 | int c, cnt, val, err; |
777 | ||
778 | if (cval->cmask) { | |
779 | cnt = 0; | |
780 | for (c = 0; c < MAX_CHANNELS; c++) { | |
781 | if (cval->cmask & (1 << c)) { | |
782 | err = get_cur_mix_value(cval, c + 1, &val); | |
783 | if (err < 0) { | |
84957a8a | 784 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
785 | ucontrol->value.integer.value[0] = cval->min; |
786 | return 0; | |
787 | } | |
788 | snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", cval->control, c + 1, err); | |
789 | return err; | |
790 | } | |
791 | val = get_relative_value(cval, val); | |
792 | ucontrol->value.integer.value[cnt] = val; | |
793 | cnt++; | |
794 | } | |
795 | } | |
796 | } else { | |
797 | /* master channel */ | |
798 | err = get_cur_mix_value(cval, 0, &val); | |
799 | if (err < 0) { | |
84957a8a | 800 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
801 | ucontrol->value.integer.value[0] = cval->min; |
802 | return 0; | |
803 | } | |
804 | snd_printd(KERN_ERR "cannot get current value for control %d master ch: err = %d\n", cval->control, err); | |
805 | return err; | |
806 | } | |
807 | val = get_relative_value(cval, val); | |
808 | ucontrol->value.integer.value[0] = val; | |
809 | } | |
810 | return 0; | |
811 | } | |
812 | ||
813 | /* put the current value to feature/mixer unit */ | |
86e07d34 | 814 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 815 | { |
86e07d34 | 816 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
817 | int c, cnt, val, oval, err; |
818 | int changed = 0; | |
819 | ||
820 | if (cval->cmask) { | |
821 | cnt = 0; | |
822 | for (c = 0; c < MAX_CHANNELS; c++) { | |
823 | if (cval->cmask & (1 << c)) { | |
824 | err = get_cur_mix_value(cval, c + 1, &oval); | |
825 | if (err < 0) { | |
84957a8a | 826 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
827 | return 0; |
828 | return err; | |
829 | } | |
830 | val = ucontrol->value.integer.value[cnt]; | |
831 | val = get_abs_value(cval, val); | |
832 | if (oval != val) { | |
833 | set_cur_mix_value(cval, c + 1, val); | |
834 | changed = 1; | |
835 | } | |
836 | get_cur_mix_value(cval, c + 1, &val); | |
837 | cnt++; | |
838 | } | |
839 | } | |
840 | } else { | |
841 | /* master channel */ | |
842 | err = get_cur_mix_value(cval, 0, &oval); | |
84957a8a | 843 | if (err < 0 && cval->mixer->ignore_ctl_error) |
1da177e4 LT |
844 | return 0; |
845 | if (err < 0) | |
846 | return err; | |
847 | val = ucontrol->value.integer.value[0]; | |
848 | val = get_abs_value(cval, val); | |
849 | if (val != oval) { | |
850 | set_cur_mix_value(cval, 0, val); | |
851 | changed = 1; | |
852 | } | |
853 | } | |
854 | return changed; | |
855 | } | |
856 | ||
86e07d34 | 857 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
858 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
859 | .name = "", /* will be filled later manually */ | |
860 | .info = mixer_ctl_feature_info, | |
861 | .get = mixer_ctl_feature_get, | |
862 | .put = mixer_ctl_feature_put, | |
863 | }; | |
864 | ||
865 | ||
866 | /* | |
867 | * build a feature control | |
868 | */ | |
869 | ||
86e07d34 | 870 | static void build_feature_ctl(struct mixer_build *state, unsigned char *desc, |
1da177e4 | 871 | unsigned int ctl_mask, int control, |
86e07d34 | 872 | struct usb_audio_term *iterm, int unitid) |
1da177e4 LT |
873 | { |
874 | unsigned int len = 0; | |
875 | int mapped_name = 0; | |
876 | int nameid = desc[desc[0] - 1]; | |
86e07d34 TI |
877 | struct snd_kcontrol *kctl; |
878 | struct usb_mixer_elem_info *cval; | |
1da177e4 LT |
879 | |
880 | control++; /* change from zero-based to 1-based value */ | |
881 | ||
882 | if (control == USB_FEATURE_GEQ) { | |
883 | /* FIXME: not supported yet */ | |
884 | return; | |
885 | } | |
886 | ||
887 | if (check_ignored_ctl(state, unitid, control)) | |
888 | return; | |
889 | ||
561b220a | 890 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
891 | if (! cval) { |
892 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
893 | return; | |
894 | } | |
84957a8a | 895 | cval->mixer = state->mixer; |
1da177e4 LT |
896 | cval->id = unitid; |
897 | cval->control = control; | |
898 | cval->cmask = ctl_mask; | |
899 | cval->val_type = audio_feature_info[control-1].type; | |
900 | if (ctl_mask == 0) | |
901 | cval->channels = 1; /* master channel */ | |
902 | else { | |
903 | int i, c = 0; | |
904 | for (i = 0; i < 16; i++) | |
905 | if (ctl_mask & (1 << i)) | |
906 | c++; | |
907 | cval->channels = c; | |
908 | } | |
909 | ||
910 | /* get min/max values */ | |
911 | get_min_max(cval, 0); | |
912 | ||
913 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
914 | if (! kctl) { | |
915 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
916 | kfree(cval); | |
917 | return; | |
918 | } | |
919 | kctl->private_free = usb_mixer_elem_free; | |
920 | ||
921 | len = check_mapped_name(state, unitid, control, kctl->id.name, sizeof(kctl->id.name)); | |
922 | mapped_name = len != 0; | |
923 | if (! len && nameid) | |
924 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
925 | ||
926 | switch (control) { | |
927 | case USB_FEATURE_MUTE: | |
928 | case USB_FEATURE_VOLUME: | |
929 | /* determine the control name. the rule is: | |
930 | * - if a name id is given in descriptor, use it. | |
931 | * - if the connected input can be determined, then use the name | |
932 | * of terminal type. | |
933 | * - if the connected output can be determined, use it. | |
934 | * - otherwise, anonymous name. | |
935 | */ | |
936 | if (! len) { | |
937 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
938 | if (! len) | |
939 | len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
940 | if (! len) | |
941 | len = snprintf(kctl->id.name, sizeof(kctl->id.name), | |
942 | "Feature %d", unitid); | |
943 | } | |
944 | /* determine the stream direction: | |
945 | * if the connected output is USB stream, then it's likely a | |
946 | * capture stream. otherwise it should be playback (hopefully :) | |
947 | */ | |
948 | if (! mapped_name && ! (state->oterm.type >> 16)) { | |
949 | if ((state->oterm.type & 0xff00) == 0x0100) { | |
950 | len = strlcat(kctl->id.name, " Capture", sizeof(kctl->id.name)); | |
951 | } else { | |
952 | len = strlcat(kctl->id.name + len, " Playback", sizeof(kctl->id.name)); | |
953 | } | |
954 | } | |
955 | strlcat(kctl->id.name + len, control == USB_FEATURE_MUTE ? " Switch" : " Volume", | |
956 | sizeof(kctl->id.name)); | |
7bc5ba7e TI |
957 | if (control == USB_FEATURE_VOLUME) { |
958 | kctl->tlv.c = mixer_vol_tlv; | |
959 | kctl->vd[0].access |= | |
960 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
961 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
962 | } | |
1da177e4 LT |
963 | break; |
964 | ||
965 | default: | |
966 | if (! len) | |
967 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, | |
968 | sizeof(kctl->id.name)); | |
969 | break; | |
970 | } | |
971 | ||
972 | /* quirk for UDA1321/N101 */ | |
973 | /* note that detection between firmware 2.1.1.7 (N101) and later 2.1.1.21 */ | |
974 | /* is not very clear from datasheets */ | |
975 | /* I hope that the min value is -15360 for newer firmware --jk */ | |
27d10f56 CL |
976 | switch (state->chip->usb_id) { |
977 | case USB_ID(0x0471, 0x0101): | |
978 | case USB_ID(0x0471, 0x0104): | |
979 | case USB_ID(0x0471, 0x0105): | |
980 | case USB_ID(0x0672, 0x1041): | |
981 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && | |
982 | cval->min == -15616) { | |
d3d579f8 | 983 | snd_printk(KERN_INFO "using volume control quirk for the UDA1321/N101 chip\n"); |
27d10f56 CL |
984 | cval->max = -256; |
985 | } | |
1da177e4 LT |
986 | } |
987 | ||
988 | snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", | |
989 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); | |
84957a8a | 990 | add_control_to_empty(state, kctl); |
1da177e4 LT |
991 | } |
992 | ||
993 | ||
994 | ||
995 | /* | |
996 | * parse a feature unit | |
997 | * | |
998 | * most of controlls are defined here. | |
999 | */ | |
86e07d34 | 1000 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, unsigned char *ftr) |
1da177e4 LT |
1001 | { |
1002 | int channels, i, j; | |
86e07d34 | 1003 | struct usb_audio_term iterm; |
1da177e4 LT |
1004 | unsigned int master_bits, first_ch_bits; |
1005 | int err, csize; | |
1006 | ||
1007 | if (ftr[0] < 7 || ! (csize = ftr[5]) || ftr[0] < 7 + csize) { | |
1008 | snd_printk(KERN_ERR "usbaudio: unit %u: invalid FEATURE_UNIT descriptor\n", unitid); | |
1009 | return -EINVAL; | |
1010 | } | |
1011 | ||
1012 | /* parse the source unit */ | |
1013 | if ((err = parse_audio_unit(state, ftr[4])) < 0) | |
1014 | return err; | |
1015 | ||
1016 | /* determine the input source type and name */ | |
1017 | if (check_input_term(state, ftr[4], &iterm) < 0) | |
1018 | return -EINVAL; | |
1019 | ||
1020 | channels = (ftr[0] - 7) / csize - 1; | |
1021 | ||
1022 | master_bits = snd_usb_combine_bytes(ftr + 6, csize); | |
1023 | if (channels > 0) | |
1024 | first_ch_bits = snd_usb_combine_bytes(ftr + 6 + csize, csize); | |
1025 | else | |
1026 | first_ch_bits = 0; | |
1027 | /* check all control types */ | |
1028 | for (i = 0; i < 10; i++) { | |
1029 | unsigned int ch_bits = 0; | |
1030 | for (j = 0; j < channels; j++) { | |
1031 | unsigned int mask = snd_usb_combine_bytes(ftr + 6 + csize * (j+1), csize); | |
1032 | if (mask & (1 << i)) | |
1033 | ch_bits |= (1 << j); | |
1034 | } | |
1035 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ | |
1036 | build_feature_ctl(state, ftr, ch_bits, i, &iterm, unitid); | |
1037 | if (master_bits & (1 << i)) | |
1038 | build_feature_ctl(state, ftr, 0, i, &iterm, unitid); | |
1039 | } | |
1040 | ||
1041 | return 0; | |
1042 | } | |
1043 | ||
1044 | ||
1045 | /* | |
1046 | * Mixer Unit | |
1047 | */ | |
1048 | ||
1049 | /* | |
1050 | * build a mixer unit control | |
1051 | * | |
1052 | * the callbacks are identical with feature unit. | |
1053 | * input channel number (zero based) is given in control field instead. | |
1054 | */ | |
1055 | ||
86e07d34 | 1056 | static void build_mixer_unit_ctl(struct mixer_build *state, unsigned char *desc, |
1da177e4 | 1057 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1058 | struct usb_audio_term *iterm) |
1da177e4 | 1059 | { |
86e07d34 | 1060 | struct usb_mixer_elem_info *cval; |
1da177e4 LT |
1061 | unsigned int input_pins = desc[4]; |
1062 | unsigned int num_outs = desc[5 + input_pins]; | |
1063 | unsigned int i, len; | |
86e07d34 | 1064 | struct snd_kcontrol *kctl; |
1da177e4 LT |
1065 | |
1066 | if (check_ignored_ctl(state, unitid, 0)) | |
1067 | return; | |
1068 | ||
561b220a | 1069 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1070 | if (! cval) |
1071 | return; | |
1072 | ||
84957a8a | 1073 | cval->mixer = state->mixer; |
1da177e4 LT |
1074 | cval->id = unitid; |
1075 | cval->control = in_ch + 1; /* based on 1 */ | |
1076 | cval->val_type = USB_MIXER_S16; | |
1077 | for (i = 0; i < num_outs; i++) { | |
1078 | if (check_matrix_bitmap(desc + 9 + input_pins, in_ch, i, num_outs)) { | |
1079 | cval->cmask |= (1 << i); | |
1080 | cval->channels++; | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | /* get min/max values */ | |
1085 | get_min_max(cval, 0); | |
1086 | ||
1087 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1088 | if (! kctl) { | |
1089 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1090 | kfree(cval); | |
1091 | return; | |
1092 | } | |
1093 | kctl->private_free = usb_mixer_elem_free; | |
1094 | ||
1095 | len = check_mapped_name(state, unitid, 0, kctl->id.name, sizeof(kctl->id.name)); | |
1096 | if (! len) | |
1097 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); | |
1098 | if (! len) | |
1099 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); | |
1100 | strlcat(kctl->id.name + len, " Volume", sizeof(kctl->id.name)); | |
1101 | ||
1102 | snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", | |
1103 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1104 | add_control_to_empty(state, kctl); |
1da177e4 LT |
1105 | } |
1106 | ||
1107 | ||
1108 | /* | |
1109 | * parse a mixer unit | |
1110 | */ | |
86e07d34 | 1111 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, unsigned char *desc) |
1da177e4 | 1112 | { |
86e07d34 | 1113 | struct usb_audio_term iterm; |
1da177e4 LT |
1114 | int input_pins, num_ins, num_outs; |
1115 | int pin, ich, err; | |
1116 | ||
1117 | if (desc[0] < 11 || ! (input_pins = desc[4]) || ! (num_outs = desc[5 + input_pins])) { | |
1118 | snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); | |
1119 | return -EINVAL; | |
1120 | } | |
1121 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
1122 | if (desc[0] <= 10 + input_pins) { | |
1123 | snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); | |
1124 | return 0; | |
1125 | } | |
1126 | ||
1127 | num_ins = 0; | |
1128 | ich = 0; | |
1129 | for (pin = 0; pin < input_pins; pin++) { | |
1130 | err = parse_audio_unit(state, desc[5 + pin]); | |
1131 | if (err < 0) | |
1132 | return err; | |
1133 | err = check_input_term(state, desc[5 + pin], &iterm); | |
1134 | if (err < 0) | |
1135 | return err; | |
1136 | num_ins += iterm.channels; | |
1137 | for (; ich < num_ins; ++ich) { | |
1138 | int och, ich_has_controls = 0; | |
1139 | ||
1140 | for (och = 0; och < num_outs; ++och) { | |
1141 | if (check_matrix_bitmap(desc + 9 + input_pins, | |
1142 | ich, och, num_outs)) { | |
1143 | ich_has_controls = 1; | |
1144 | break; | |
1145 | } | |
1146 | } | |
1147 | if (ich_has_controls) | |
1148 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1149 | unitid, &iterm); | |
1150 | } | |
1151 | } | |
1152 | return 0; | |
1153 | } | |
1154 | ||
1155 | ||
1156 | /* | |
1157 | * Processing Unit / Extension Unit | |
1158 | */ | |
1159 | ||
1160 | /* get callback for processing/extension unit */ | |
86e07d34 | 1161 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1162 | { |
86e07d34 | 1163 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1164 | int err, val; |
1165 | ||
1166 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
84957a8a | 1167 | if (err < 0 && cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1168 | ucontrol->value.integer.value[0] = cval->min; |
1169 | return 0; | |
1170 | } | |
1171 | if (err < 0) | |
1172 | return err; | |
1173 | val = get_relative_value(cval, val); | |
1174 | ucontrol->value.integer.value[0] = val; | |
1175 | return 0; | |
1176 | } | |
1177 | ||
1178 | /* put callback for processing/extension unit */ | |
86e07d34 | 1179 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1180 | { |
86e07d34 | 1181 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1182 | int val, oval, err; |
1183 | ||
1184 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
1185 | if (err < 0) { | |
84957a8a | 1186 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1187 | return 0; |
1188 | return err; | |
1189 | } | |
1190 | val = ucontrol->value.integer.value[0]; | |
1191 | val = get_abs_value(cval, val); | |
1192 | if (val != oval) { | |
1193 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1194 | return 1; | |
1195 | } | |
1196 | return 0; | |
1197 | } | |
1198 | ||
1199 | /* alsa control interface for processing/extension unit */ | |
86e07d34 | 1200 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1201 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1202 | .name = "", /* will be filled later */ | |
1203 | .info = mixer_ctl_feature_info, | |
1204 | .get = mixer_ctl_procunit_get, | |
1205 | .put = mixer_ctl_procunit_put, | |
1206 | }; | |
1207 | ||
1208 | ||
1209 | /* | |
1210 | * predefined data for processing units | |
1211 | */ | |
1212 | struct procunit_value_info { | |
1213 | int control; | |
1214 | char *suffix; | |
1215 | int val_type; | |
1216 | int min_value; | |
1217 | }; | |
1218 | ||
1219 | struct procunit_info { | |
1220 | int type; | |
1221 | char *name; | |
1222 | struct procunit_value_info *values; | |
1223 | }; | |
1224 | ||
1225 | static struct procunit_value_info updown_proc_info[] = { | |
1226 | { USB_PROC_UPDOWN_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1227 | { USB_PROC_UPDOWN_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 }, | |
1228 | { 0 } | |
1229 | }; | |
1230 | static struct procunit_value_info prologic_proc_info[] = { | |
1231 | { USB_PROC_PROLOGIC_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1232 | { USB_PROC_PROLOGIC_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 }, | |
1233 | { 0 } | |
1234 | }; | |
1235 | static struct procunit_value_info threed_enh_proc_info[] = { | |
1236 | { USB_PROC_3DENH_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1237 | { USB_PROC_3DENH_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1238 | { 0 } | |
1239 | }; | |
1240 | static struct procunit_value_info reverb_proc_info[] = { | |
1241 | { USB_PROC_REVERB_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1242 | { USB_PROC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1243 | { USB_PROC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1244 | { USB_PROC_REVERB_DELAY, "Delay", USB_MIXER_U8 }, | |
1245 | { 0 } | |
1246 | }; | |
1247 | static struct procunit_value_info chorus_proc_info[] = { | |
1248 | { USB_PROC_CHORUS_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1249 | { USB_PROC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1250 | { USB_PROC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1251 | { USB_PROC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1252 | { 0 } | |
1253 | }; | |
1254 | static struct procunit_value_info dcr_proc_info[] = { | |
1255 | { USB_PROC_DCR_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1256 | { USB_PROC_DCR_RATIO, "Ratio", USB_MIXER_U16 }, | |
1257 | { USB_PROC_DCR_MAX_AMP, "Max Amp", USB_MIXER_S16 }, | |
1258 | { USB_PROC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1259 | { USB_PROC_DCR_ATTACK, "Attack Time", USB_MIXER_U16 }, | |
1260 | { USB_PROC_DCR_RELEASE, "Release Time", USB_MIXER_U16 }, | |
1261 | { 0 } | |
1262 | }; | |
1263 | ||
1264 | static struct procunit_info procunits[] = { | |
1265 | { USB_PROC_UPDOWN, "Up Down", updown_proc_info }, | |
1266 | { USB_PROC_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1267 | { USB_PROC_3DENH, "3D Stereo Extender", threed_enh_proc_info }, | |
1268 | { USB_PROC_REVERB, "Reverb", reverb_proc_info }, | |
1269 | { USB_PROC_CHORUS, "Chorus", chorus_proc_info }, | |
1270 | { USB_PROC_DCR, "DCR", dcr_proc_info }, | |
1271 | { 0 }, | |
1272 | }; | |
1273 | ||
1274 | /* | |
1275 | * build a processing/extension unit | |
1276 | */ | |
86e07d34 | 1277 | static int build_audio_procunit(struct mixer_build *state, int unitid, unsigned char *dsc, struct procunit_info *list, char *name) |
1da177e4 LT |
1278 | { |
1279 | int num_ins = dsc[6]; | |
86e07d34 TI |
1280 | struct usb_mixer_elem_info *cval; |
1281 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1282 | int i, err, nameid, type, len; |
1283 | struct procunit_info *info; | |
1284 | struct procunit_value_info *valinfo; | |
1285 | static struct procunit_value_info default_value_info[] = { | |
1286 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1287 | { 0 } | |
1288 | }; | |
1289 | static struct procunit_info default_info = { | |
1290 | 0, NULL, default_value_info | |
1291 | }; | |
1292 | ||
1293 | if (dsc[0] < 13 || dsc[0] < 13 + num_ins || dsc[0] < num_ins + dsc[11 + num_ins]) { | |
1294 | snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); | |
1295 | return -EINVAL; | |
1296 | } | |
1297 | ||
1298 | for (i = 0; i < num_ins; i++) { | |
1299 | if ((err = parse_audio_unit(state, dsc[7 + i])) < 0) | |
1300 | return err; | |
1301 | } | |
1302 | ||
1303 | type = combine_word(&dsc[4]); | |
1da177e4 LT |
1304 | for (info = list; info && info->type; info++) |
1305 | if (info->type == type) | |
1306 | break; | |
1307 | if (! info || ! info->type) | |
1308 | info = &default_info; | |
1309 | ||
1310 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
1311 | /* FIXME: bitmap might be longer than 8bit */ | |
1312 | if (! (dsc[12 + num_ins] & (1 << (valinfo->control - 1)))) | |
1313 | continue; | |
1314 | if (check_ignored_ctl(state, unitid, valinfo->control)) | |
1315 | continue; | |
561b220a | 1316 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1317 | if (! cval) { |
1318 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1319 | return -ENOMEM; | |
1320 | } | |
84957a8a | 1321 | cval->mixer = state->mixer; |
1da177e4 LT |
1322 | cval->id = unitid; |
1323 | cval->control = valinfo->control; | |
1324 | cval->val_type = valinfo->val_type; | |
1325 | cval->channels = 1; | |
1326 | ||
1327 | /* get min/max values */ | |
1328 | if (type == USB_PROC_UPDOWN && cval->control == USB_PROC_UPDOWN_MODE_SEL) { | |
1329 | /* FIXME: hard-coded */ | |
1330 | cval->min = 1; | |
1331 | cval->max = dsc[15]; | |
1332 | cval->res = 1; | |
1333 | cval->initialized = 1; | |
1334 | } else | |
1335 | get_min_max(cval, valinfo->min_value); | |
1336 | ||
1337 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
1338 | if (! kctl) { | |
1339 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1340 | kfree(cval); | |
1341 | return -ENOMEM; | |
1342 | } | |
1343 | kctl->private_free = usb_mixer_elem_free; | |
1344 | ||
1345 | if (check_mapped_name(state, unitid, cval->control, kctl->id.name, sizeof(kctl->id.name))) | |
1346 | ; | |
1347 | else if (info->name) | |
1348 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); | |
1349 | else { | |
1350 | nameid = dsc[12 + num_ins + dsc[11 + num_ins]]; | |
1351 | len = 0; | |
1352 | if (nameid) | |
1353 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1354 | if (! len) | |
1355 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); | |
1356 | } | |
1357 | strlcat(kctl->id.name, " ", sizeof(kctl->id.name)); | |
1358 | strlcat(kctl->id.name, valinfo->suffix, sizeof(kctl->id.name)); | |
1359 | ||
1360 | snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", | |
1361 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
84957a8a | 1362 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1363 | return err; |
1364 | } | |
1365 | return 0; | |
1366 | } | |
1367 | ||
1368 | ||
86e07d34 | 1369 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, unsigned char *desc) |
1da177e4 LT |
1370 | { |
1371 | return build_audio_procunit(state, unitid, desc, procunits, "Processing Unit"); | |
1372 | } | |
1373 | ||
86e07d34 | 1374 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, unsigned char *desc) |
1da177e4 LT |
1375 | { |
1376 | return build_audio_procunit(state, unitid, desc, NULL, "Extension Unit"); | |
1377 | } | |
1378 | ||
1379 | ||
1380 | /* | |
1381 | * Selector Unit | |
1382 | */ | |
1383 | ||
1384 | /* info callback for selector unit | |
1385 | * use an enumerator type for routing | |
1386 | */ | |
86e07d34 | 1387 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 1388 | { |
86e07d34 | 1389 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1390 | char **itemlist = (char **)kcontrol->private_value; |
1391 | ||
1392 | snd_assert(itemlist, return -EINVAL); | |
1393 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
1394 | uinfo->count = 1; | |
1395 | uinfo->value.enumerated.items = cval->max; | |
1396 | if ((int)uinfo->value.enumerated.item >= cval->max) | |
1397 | uinfo->value.enumerated.item = cval->max - 1; | |
1398 | strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]); | |
1399 | return 0; | |
1400 | } | |
1401 | ||
1402 | /* get callback for selector unit */ | |
86e07d34 | 1403 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1404 | { |
86e07d34 | 1405 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1406 | int val, err; |
1407 | ||
1408 | err = get_cur_ctl_value(cval, 0, &val); | |
1409 | if (err < 0) { | |
84957a8a | 1410 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1411 | ucontrol->value.enumerated.item[0] = 0; |
1412 | return 0; | |
1413 | } | |
1414 | return err; | |
1415 | } | |
1416 | val = get_relative_value(cval, val); | |
1417 | ucontrol->value.enumerated.item[0] = val; | |
1418 | return 0; | |
1419 | } | |
1420 | ||
1421 | /* put callback for selector unit */ | |
86e07d34 | 1422 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1423 | { |
86e07d34 | 1424 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1425 | int val, oval, err; |
1426 | ||
1427 | err = get_cur_ctl_value(cval, 0, &oval); | |
1428 | if (err < 0) { | |
84957a8a | 1429 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1430 | return 0; |
1431 | return err; | |
1432 | } | |
1433 | val = ucontrol->value.enumerated.item[0]; | |
1434 | val = get_abs_value(cval, val); | |
1435 | if (val != oval) { | |
1436 | set_cur_ctl_value(cval, 0, val); | |
1437 | return 1; | |
1438 | } | |
1439 | return 0; | |
1440 | } | |
1441 | ||
1442 | /* alsa control interface for selector unit */ | |
86e07d34 | 1443 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
1444 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1445 | .name = "", /* will be filled later */ | |
1446 | .info = mixer_ctl_selector_info, | |
1447 | .get = mixer_ctl_selector_get, | |
1448 | .put = mixer_ctl_selector_put, | |
1449 | }; | |
1450 | ||
1451 | ||
1452 | /* private free callback. | |
1453 | * free both private_data and private_value | |
1454 | */ | |
86e07d34 | 1455 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
1456 | { |
1457 | int i, num_ins = 0; | |
1458 | ||
1459 | if (kctl->private_data) { | |
86e07d34 | 1460 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
1461 | num_ins = cval->max; |
1462 | kfree(cval); | |
1463 | kctl->private_data = NULL; | |
1464 | } | |
1465 | if (kctl->private_value) { | |
1466 | char **itemlist = (char **)kctl->private_value; | |
1467 | for (i = 0; i < num_ins; i++) | |
1468 | kfree(itemlist[i]); | |
1469 | kfree(itemlist); | |
1470 | kctl->private_value = 0; | |
1471 | } | |
1472 | } | |
1473 | ||
1474 | /* | |
1475 | * parse a selector unit | |
1476 | */ | |
86e07d34 | 1477 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, unsigned char *desc) |
1da177e4 LT |
1478 | { |
1479 | unsigned int num_ins = desc[4]; | |
1480 | unsigned int i, nameid, len; | |
1481 | int err; | |
86e07d34 TI |
1482 | struct usb_mixer_elem_info *cval; |
1483 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1484 | char **namelist; |
1485 | ||
1486 | if (! num_ins || desc[0] < 6 + num_ins) { | |
1487 | snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); | |
1488 | return -EINVAL; | |
1489 | } | |
1490 | ||
1491 | for (i = 0; i < num_ins; i++) { | |
1492 | if ((err = parse_audio_unit(state, desc[5 + i])) < 0) | |
1493 | return err; | |
1494 | } | |
1495 | ||
1496 | if (num_ins == 1) /* only one ? nonsense! */ | |
1497 | return 0; | |
1498 | ||
1499 | if (check_ignored_ctl(state, unitid, 0)) | |
1500 | return 0; | |
1501 | ||
561b220a | 1502 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1503 | if (! cval) { |
1504 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1505 | return -ENOMEM; | |
1506 | } | |
84957a8a | 1507 | cval->mixer = state->mixer; |
1da177e4 LT |
1508 | cval->id = unitid; |
1509 | cval->val_type = USB_MIXER_U8; | |
1510 | cval->channels = 1; | |
1511 | cval->min = 1; | |
1512 | cval->max = num_ins; | |
1513 | cval->res = 1; | |
1514 | cval->initialized = 1; | |
1515 | ||
1516 | namelist = kmalloc(sizeof(char *) * num_ins, GFP_KERNEL); | |
1517 | if (! namelist) { | |
1518 | snd_printk(KERN_ERR "cannot malloc\n"); | |
1519 | kfree(cval); | |
1520 | return -ENOMEM; | |
1521 | } | |
1522 | #define MAX_ITEM_NAME_LEN 64 | |
1523 | for (i = 0; i < num_ins; i++) { | |
86e07d34 | 1524 | struct usb_audio_term iterm; |
1da177e4 LT |
1525 | len = 0; |
1526 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
1527 | if (! namelist[i]) { | |
1528 | snd_printk(KERN_ERR "cannot malloc\n"); | |
1529 | while (--i > 0) | |
1530 | kfree(namelist[i]); | |
1531 | kfree(namelist); | |
1532 | kfree(cval); | |
1533 | return -ENOMEM; | |
1534 | } | |
8e062ec7 CL |
1535 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
1536 | MAX_ITEM_NAME_LEN); | |
1537 | if (! len && check_input_term(state, desc[5 + i], &iterm) >= 0) | |
1da177e4 LT |
1538 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
1539 | if (! len) | |
1540 | sprintf(namelist[i], "Input %d", i); | |
1541 | } | |
1542 | ||
1543 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
1544 | if (! kctl) { | |
1545 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
878b4789 | 1546 | kfree(namelist); |
1da177e4 LT |
1547 | kfree(cval); |
1548 | return -ENOMEM; | |
1549 | } | |
1550 | kctl->private_value = (unsigned long)namelist; | |
1551 | kctl->private_free = usb_mixer_selector_elem_free; | |
1552 | ||
1553 | nameid = desc[desc[0] - 1]; | |
1554 | len = check_mapped_name(state, unitid, 0, kctl->id.name, sizeof(kctl->id.name)); | |
1555 | if (len) | |
1556 | ; | |
1557 | else if (nameid) | |
1558 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1559 | else { | |
1560 | len = get_term_name(state, &state->oterm, | |
1561 | kctl->id.name, sizeof(kctl->id.name), 0); | |
1562 | if (! len) | |
1563 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); | |
1564 | ||
1565 | if ((state->oterm.type & 0xff00) == 0x0100) | |
1566 | strlcat(kctl->id.name, " Capture Source", sizeof(kctl->id.name)); | |
1567 | else | |
1568 | strlcat(kctl->id.name, " Playback Source", sizeof(kctl->id.name)); | |
1569 | } | |
1570 | ||
1571 | snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", | |
1572 | cval->id, kctl->id.name, num_ins); | |
84957a8a | 1573 | if ((err = add_control_to_empty(state, kctl)) < 0) |
1da177e4 LT |
1574 | return err; |
1575 | ||
1576 | return 0; | |
1577 | } | |
1578 | ||
1579 | ||
1580 | /* | |
1581 | * parse an audio unit recursively | |
1582 | */ | |
1583 | ||
86e07d34 | 1584 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
1585 | { |
1586 | unsigned char *p1; | |
1587 | ||
1588 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
1589 | return 0; /* the unit already visited */ | |
1590 | ||
1591 | p1 = find_audio_control_unit(state, unitid); | |
1592 | if (!p1) { | |
1593 | snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); | |
1594 | return -EINVAL; | |
1595 | } | |
1596 | ||
1597 | switch (p1[2]) { | |
1598 | case INPUT_TERMINAL: | |
1599 | return 0; /* NOP */ | |
1600 | case MIXER_UNIT: | |
1601 | return parse_audio_mixer_unit(state, unitid, p1); | |
1602 | case SELECTOR_UNIT: | |
1603 | return parse_audio_selector_unit(state, unitid, p1); | |
1604 | case FEATURE_UNIT: | |
1605 | return parse_audio_feature_unit(state, unitid, p1); | |
1606 | case PROCESSING_UNIT: | |
1607 | return parse_audio_processing_unit(state, unitid, p1); | |
1608 | case EXTENSION_UNIT: | |
1609 | return parse_audio_extension_unit(state, unitid, p1); | |
1610 | default: | |
1611 | snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1612 | return -EINVAL; | |
1613 | } | |
1614 | } | |
1615 | ||
84957a8a CL |
1616 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
1617 | { | |
6639b6c2 CL |
1618 | kfree(mixer->id_elems); |
1619 | if (mixer->urb) { | |
1620 | kfree(mixer->urb->transfer_buffer); | |
1621 | usb_free_urb(mixer->urb); | |
1622 | } | |
68df9de1 | 1623 | usb_free_urb(mixer->rc_urb); |
b259b10c | 1624 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
1625 | kfree(mixer); |
1626 | } | |
1627 | ||
86e07d34 | 1628 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
1629 | { |
1630 | struct usb_mixer_interface *mixer = device->device_data; | |
1631 | snd_usb_mixer_free(mixer); | |
1632 | return 0; | |
1633 | } | |
1634 | ||
1da177e4 LT |
1635 | /* |
1636 | * create mixer controls | |
1637 | * | |
1638 | * walk through all OUTPUT_TERMINAL descriptors to search for mixers | |
1639 | */ | |
84957a8a | 1640 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 LT |
1641 | { |
1642 | unsigned char *desc; | |
86e07d34 | 1643 | struct mixer_build state; |
1da177e4 LT |
1644 | int err; |
1645 | const struct usbmix_ctl_map *map; | |
84957a8a | 1646 | struct usb_host_interface *hostif; |
1da177e4 | 1647 | |
84957a8a | 1648 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; |
1da177e4 | 1649 | memset(&state, 0, sizeof(state)); |
84957a8a CL |
1650 | state.chip = mixer->chip; |
1651 | state.mixer = mixer; | |
1da177e4 LT |
1652 | state.buffer = hostif->extra; |
1653 | state.buflen = hostif->extralen; | |
1da177e4 LT |
1654 | |
1655 | /* check the mapping table */ | |
27d10f56 CL |
1656 | for (map = usbmix_ctl_maps; map->id; map++) { |
1657 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 1658 | state.map = map->map; |
8e062ec7 | 1659 | state.selector_map = map->selector_map; |
84957a8a | 1660 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
1661 | break; |
1662 | } | |
1663 | } | |
1da177e4 LT |
1664 | |
1665 | desc = NULL; | |
1666 | while ((desc = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, desc, OUTPUT_TERMINAL)) != NULL) { | |
1667 | if (desc[0] < 9) | |
1668 | continue; /* invalid descriptor? */ | |
1669 | set_bit(desc[3], state.unitbitmap); /* mark terminal ID as visited */ | |
1670 | state.oterm.id = desc[3]; | |
1671 | state.oterm.type = combine_word(&desc[4]); | |
1672 | state.oterm.name = desc[8]; | |
1673 | err = parse_audio_unit(&state, desc[7]); | |
1674 | if (err < 0) | |
1675 | return err; | |
1676 | } | |
1677 | return 0; | |
1678 | } | |
84957a8a | 1679 | |
6639b6c2 CL |
1680 | static void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, |
1681 | int unitid) | |
1682 | { | |
86e07d34 | 1683 | struct usb_mixer_elem_info *info; |
6639b6c2 CL |
1684 | |
1685 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) | |
1686 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
1687 | info->elem_id); | |
1688 | } | |
1689 | ||
b259b10c CL |
1690 | static void snd_usb_mixer_memory_change(struct usb_mixer_interface *mixer, |
1691 | int unitid) | |
1692 | { | |
4d1a70da | 1693 | if (!mixer->rc_cfg) |
aafad562 CL |
1694 | return; |
1695 | /* unit ids specific to Extigy/Audigy 2 NX: */ | |
1696 | switch (unitid) { | |
1697 | case 0: /* remote control */ | |
b259b10c CL |
1698 | mixer->rc_urb->dev = mixer->chip->dev; |
1699 | usb_submit_urb(mixer->rc_urb, GFP_ATOMIC); | |
aafad562 CL |
1700 | break; |
1701 | case 4: /* digital in jack */ | |
1702 | case 7: /* line in jacks */ | |
1703 | case 19: /* speaker out jacks */ | |
1704 | case 20: /* headphones out jack */ | |
1705 | break; | |
1706 | default: | |
1707 | snd_printd(KERN_DEBUG "memory change in unknown unit %d\n", unitid); | |
1708 | break; | |
b259b10c CL |
1709 | } |
1710 | } | |
1711 | ||
7d12e780 | 1712 | static void snd_usb_mixer_status_complete(struct urb *urb) |
6639b6c2 CL |
1713 | { |
1714 | struct usb_mixer_interface *mixer = urb->context; | |
1715 | ||
1716 | if (urb->status == 0) { | |
1717 | u8 *buf = urb->transfer_buffer; | |
1718 | int i; | |
1719 | ||
1720 | for (i = urb->actual_length; i >= 2; buf += 2, i -= 2) { | |
1721 | snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", | |
1722 | buf[0], buf[1]); | |
1723 | /* ignore any notifications not from the control interface */ | |
1724 | if ((buf[0] & 0x0f) != 0) | |
1725 | continue; | |
1726 | if (!(buf[0] & 0x40)) | |
1727 | snd_usb_mixer_notify_id(mixer, buf[1]); | |
b259b10c CL |
1728 | else |
1729 | snd_usb_mixer_memory_change(mixer, buf[1]); | |
6639b6c2 CL |
1730 | } |
1731 | } | |
1732 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) { | |
1733 | urb->dev = mixer->chip->dev; | |
1734 | usb_submit_urb(urb, GFP_ATOMIC); | |
1735 | } | |
1736 | } | |
1737 | ||
1738 | /* create the handler for the optional status interrupt endpoint */ | |
1739 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
1740 | { | |
1741 | struct usb_host_interface *hostif; | |
1742 | struct usb_endpoint_descriptor *ep; | |
1743 | void *transfer_buffer; | |
1744 | int buffer_length; | |
1745 | unsigned int epnum; | |
1746 | ||
1747 | hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; | |
1748 | /* we need one interrupt input endpoint */ | |
1749 | if (get_iface_desc(hostif)->bNumEndpoints < 1) | |
1750 | return 0; | |
1751 | ep = get_endpoint(hostif, 0); | |
1752 | if ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_IN || | |
1753 | (ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT) | |
1754 | return 0; | |
1755 | ||
1756 | epnum = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; | |
1757 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); | |
1758 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
1759 | if (!transfer_buffer) | |
1760 | return -ENOMEM; | |
1761 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
1762 | if (!mixer->urb) { | |
1763 | kfree(transfer_buffer); | |
1764 | return -ENOMEM; | |
1765 | } | |
1766 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
1767 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
1768 | transfer_buffer, buffer_length, | |
1769 | snd_usb_mixer_status_complete, mixer, ep->bInterval); | |
1770 | usb_submit_urb(mixer->urb, GFP_KERNEL); | |
1771 | return 0; | |
1772 | } | |
1773 | ||
7d12e780 | 1774 | static void snd_usb_soundblaster_remote_complete(struct urb *urb) |
b259b10c CL |
1775 | { |
1776 | struct usb_mixer_interface *mixer = urb->context; | |
4d1a70da | 1777 | const struct rc_config *rc = mixer->rc_cfg; |
b259b10c CL |
1778 | u32 code; |
1779 | ||
4d1a70da | 1780 | if (urb->status < 0 || urb->actual_length < rc->packet_length) |
b259b10c | 1781 | return; |
4d1a70da RC |
1782 | |
1783 | code = mixer->rc_buffer[rc->offset]; | |
1784 | if (rc->length == 2) | |
1785 | code |= mixer->rc_buffer[rc->offset + 1] << 8; | |
1786 | ||
b259b10c | 1787 | /* the Mute button actually changes the mixer control */ |
4d1a70da RC |
1788 | if (code == rc->mute_code) |
1789 | snd_usb_mixer_notify_id(mixer, rc->mute_mixer_id); | |
b259b10c CL |
1790 | mixer->rc_code = code; |
1791 | wmb(); | |
1792 | wake_up(&mixer->rc_waitq); | |
1793 | } | |
1794 | ||
86e07d34 | 1795 | static int snd_usb_sbrc_hwdep_open(struct snd_hwdep *hw, struct file *file) |
b259b10c CL |
1796 | { |
1797 | struct usb_mixer_interface *mixer = hw->private_data; | |
1798 | ||
1799 | if (test_and_set_bit(0, &mixer->rc_hwdep_open)) | |
1800 | return -EBUSY; | |
1801 | return 0; | |
1802 | } | |
1803 | ||
86e07d34 | 1804 | static int snd_usb_sbrc_hwdep_release(struct snd_hwdep *hw, struct file *file) |
b259b10c CL |
1805 | { |
1806 | struct usb_mixer_interface *mixer = hw->private_data; | |
1807 | ||
1808 | clear_bit(0, &mixer->rc_hwdep_open); | |
1809 | smp_mb__after_clear_bit(); | |
1810 | return 0; | |
1811 | } | |
1812 | ||
86e07d34 | 1813 | static long snd_usb_sbrc_hwdep_read(struct snd_hwdep *hw, char __user *buf, |
b259b10c CL |
1814 | long count, loff_t *offset) |
1815 | { | |
1816 | struct usb_mixer_interface *mixer = hw->private_data; | |
1817 | int err; | |
1818 | u32 rc_code; | |
1819 | ||
434b7f56 | 1820 | if (count != 1 && count != 4) |
b259b10c CL |
1821 | return -EINVAL; |
1822 | err = wait_event_interruptible(mixer->rc_waitq, | |
1823 | (rc_code = xchg(&mixer->rc_code, 0)) != 0); | |
1824 | if (err == 0) { | |
434b7f56 CL |
1825 | if (count == 1) |
1826 | err = put_user(rc_code, buf); | |
1827 | else | |
1828 | err = put_user(rc_code, (u32 __user *)buf); | |
b259b10c CL |
1829 | } |
1830 | return err < 0 ? err : count; | |
1831 | } | |
1832 | ||
86e07d34 | 1833 | static unsigned int snd_usb_sbrc_hwdep_poll(struct snd_hwdep *hw, struct file *file, |
b259b10c CL |
1834 | poll_table *wait) |
1835 | { | |
1836 | struct usb_mixer_interface *mixer = hw->private_data; | |
1837 | ||
1838 | poll_wait(file, &mixer->rc_waitq, wait); | |
1839 | return mixer->rc_code ? POLLIN | POLLRDNORM : 0; | |
1840 | } | |
1841 | ||
1842 | static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer) | |
1843 | { | |
86e07d34 | 1844 | struct snd_hwdep *hwdep; |
4d1a70da | 1845 | int err, len, i; |
b259b10c | 1846 | |
4d1a70da RC |
1847 | for (i = 0; i < ARRAY_SIZE(rc_configs); ++i) |
1848 | if (rc_configs[i].usb_id == mixer->chip->usb_id) | |
1849 | break; | |
1850 | if (i >= ARRAY_SIZE(rc_configs)) | |
b259b10c | 1851 | return 0; |
4d1a70da | 1852 | mixer->rc_cfg = &rc_configs[i]; |
b259b10c | 1853 | |
4d1a70da RC |
1854 | len = mixer->rc_cfg->packet_length; |
1855 | ||
b259b10c CL |
1856 | init_waitqueue_head(&mixer->rc_waitq); |
1857 | err = snd_hwdep_new(mixer->chip->card, "SB remote control", 0, &hwdep); | |
1858 | if (err < 0) | |
1859 | return err; | |
1860 | snprintf(hwdep->name, sizeof(hwdep->name), | |
1861 | "%s remote control", mixer->chip->card->shortname); | |
1862 | hwdep->iface = SNDRV_HWDEP_IFACE_SB_RC; | |
1863 | hwdep->private_data = mixer; | |
1864 | hwdep->ops.read = snd_usb_sbrc_hwdep_read; | |
1865 | hwdep->ops.open = snd_usb_sbrc_hwdep_open; | |
1866 | hwdep->ops.release = snd_usb_sbrc_hwdep_release; | |
1867 | hwdep->ops.poll = snd_usb_sbrc_hwdep_poll; | |
1868 | ||
1869 | mixer->rc_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1870 | if (!mixer->rc_urb) | |
1871 | return -ENOMEM; | |
1872 | mixer->rc_setup_packet = kmalloc(sizeof(*mixer->rc_setup_packet), GFP_KERNEL); | |
1873 | if (!mixer->rc_setup_packet) { | |
1874 | usb_free_urb(mixer->rc_urb); | |
1875 | mixer->rc_urb = NULL; | |
1876 | return -ENOMEM; | |
1877 | } | |
1878 | mixer->rc_setup_packet->bRequestType = | |
1879 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE; | |
1880 | mixer->rc_setup_packet->bRequest = GET_MEM; | |
1881 | mixer->rc_setup_packet->wValue = cpu_to_le16(0); | |
1882 | mixer->rc_setup_packet->wIndex = cpu_to_le16(0); | |
1883 | mixer->rc_setup_packet->wLength = cpu_to_le16(len); | |
1884 | usb_fill_control_urb(mixer->rc_urb, mixer->chip->dev, | |
1885 | usb_rcvctrlpipe(mixer->chip->dev, 0), | |
1886 | (u8*)mixer->rc_setup_packet, mixer->rc_buffer, len, | |
1887 | snd_usb_soundblaster_remote_complete, mixer); | |
1888 | return 0; | |
1889 | } | |
1890 | ||
86e07d34 | 1891 | static int snd_audigy2nx_led_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
93446edc CL |
1892 | { |
1893 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1894 | uinfo->count = 1; | |
1895 | uinfo->value.integer.min = 0; | |
1896 | uinfo->value.integer.max = 1; | |
1897 | return 0; | |
1898 | } | |
1899 | ||
86e07d34 | 1900 | static int snd_audigy2nx_led_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
93446edc CL |
1901 | { |
1902 | struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); | |
1903 | int index = kcontrol->private_value; | |
1904 | ||
1905 | ucontrol->value.integer.value[0] = mixer->audigy2nx_leds[index]; | |
1906 | return 0; | |
1907 | } | |
1908 | ||
86e07d34 | 1909 | static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
93446edc CL |
1910 | { |
1911 | struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); | |
1912 | int index = kcontrol->private_value; | |
1913 | int value = ucontrol->value.integer.value[0]; | |
1914 | int err, changed; | |
1915 | ||
1916 | if (value > 1) | |
1917 | return -EINVAL; | |
1918 | changed = value != mixer->audigy2nx_leds[index]; | |
1919 | err = snd_usb_ctl_msg(mixer->chip->dev, | |
1920 | usb_sndctrlpipe(mixer->chip->dev, 0), 0x24, | |
1921 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, | |
1922 | value, index + 2, NULL, 0, 100); | |
1923 | if (err < 0) | |
1924 | return err; | |
1925 | mixer->audigy2nx_leds[index] = value; | |
1926 | return changed; | |
1927 | } | |
1928 | ||
86e07d34 | 1929 | static struct snd_kcontrol_new snd_audigy2nx_controls[] = { |
93446edc CL |
1930 | { |
1931 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1932 | .name = "CMSS LED Switch", | |
1933 | .info = snd_audigy2nx_led_info, | |
1934 | .get = snd_audigy2nx_led_get, | |
1935 | .put = snd_audigy2nx_led_put, | |
1936 | .private_value = 0, | |
1937 | }, | |
1938 | { | |
1939 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1940 | .name = "Power LED Switch", | |
1941 | .info = snd_audigy2nx_led_info, | |
1942 | .get = snd_audigy2nx_led_get, | |
1943 | .put = snd_audigy2nx_led_put, | |
1944 | .private_value = 1, | |
1945 | }, | |
1946 | { | |
1947 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1948 | .name = "Dolby Digital LED Switch", | |
1949 | .info = snd_audigy2nx_led_info, | |
1950 | .get = snd_audigy2nx_led_get, | |
1951 | .put = snd_audigy2nx_led_put, | |
1952 | .private_value = 2, | |
1953 | }, | |
1954 | }; | |
1955 | ||
1956 | static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer) | |
1957 | { | |
1958 | int i, err; | |
1959 | ||
1960 | for (i = 0; i < ARRAY_SIZE(snd_audigy2nx_controls); ++i) { | |
1961 | err = snd_ctl_add(mixer->chip->card, | |
1962 | snd_ctl_new1(&snd_audigy2nx_controls[i], mixer)); | |
1963 | if (err < 0) | |
1964 | return err; | |
1965 | } | |
1966 | mixer->audigy2nx_leds[1] = 1; /* Power LED is on by default */ | |
1967 | return 0; | |
1968 | } | |
1969 | ||
86e07d34 TI |
1970 | static void snd_audigy2nx_proc_read(struct snd_info_entry *entry, |
1971 | struct snd_info_buffer *buffer) | |
aafad562 CL |
1972 | { |
1973 | static const struct { | |
1974 | int unitid; | |
1975 | const char *name; | |
1976 | } jacks[] = { | |
1977 | {4, "dig in "}, | |
1978 | {7, "line in"}, | |
1979 | {19, "spk out"}, | |
1980 | {20, "hph out"}, | |
1981 | }; | |
1982 | struct usb_mixer_interface *mixer = entry->private_data; | |
1983 | int i, err; | |
1984 | u8 buf[3]; | |
1985 | ||
1986 | snd_iprintf(buffer, "%s jacks\n\n", mixer->chip->card->shortname); | |
1987 | for (i = 0; i < ARRAY_SIZE(jacks); ++i) { | |
1988 | snd_iprintf(buffer, "%s: ", jacks[i].name); | |
1989 | err = snd_usb_ctl_msg(mixer->chip->dev, | |
1990 | usb_rcvctrlpipe(mixer->chip->dev, 0), | |
1991 | GET_MEM, USB_DIR_IN | USB_TYPE_CLASS | | |
1992 | USB_RECIP_INTERFACE, 0, | |
1993 | jacks[i].unitid << 8, buf, 3, 100); | |
1994 | if (err == 3 && buf[0] == 3) | |
1995 | snd_iprintf(buffer, "%02x %02x\n", buf[1], buf[2]); | |
1996 | else | |
1997 | snd_iprintf(buffer, "?\n"); | |
1998 | } | |
1999 | } | |
2000 | ||
86e07d34 | 2001 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif) |
84957a8a | 2002 | { |
86e07d34 | 2003 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2004 | .dev_free = snd_usb_mixer_dev_free |
2005 | }; | |
2006 | struct usb_mixer_interface *mixer; | |
2007 | int err; | |
2008 | ||
2009 | strcpy(chip->card->mixername, "USB Mixer"); | |
2010 | ||
561b220a | 2011 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2012 | if (!mixer) |
2013 | return -ENOMEM; | |
2014 | mixer->chip = chip; | |
2015 | mixer->ctrlif = ctrlif; | |
2016 | #ifdef IGNORE_CTL_ERROR | |
2017 | mixer->ignore_ctl_error = 1; | |
2018 | #endif | |
6639b6c2 CL |
2019 | mixer->id_elems = kcalloc(256, sizeof(*mixer->id_elems), GFP_KERNEL); |
2020 | if (!mixer->id_elems) { | |
2021 | kfree(mixer); | |
2022 | return -ENOMEM; | |
2023 | } | |
84957a8a | 2024 | |
6639b6c2 | 2025 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2026 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2027 | goto _error; | |
84957a8a | 2028 | |
93446edc CL |
2029 | if ((err = snd_usb_soundblaster_remote_init(mixer)) < 0) |
2030 | goto _error; | |
2031 | ||
2032 | if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020)) { | |
86e07d34 | 2033 | struct snd_info_entry *entry; |
aafad562 | 2034 | |
93446edc CL |
2035 | if ((err = snd_audigy2nx_controls_create(mixer)) < 0) |
2036 | goto _error; | |
aafad562 | 2037 | if (!snd_card_proc_new(chip->card, "audigy2nx", &entry)) |
bf850204 | 2038 | snd_info_set_text_ops(entry, mixer, |
aafad562 | 2039 | snd_audigy2nx_proc_read); |
b259b10c CL |
2040 | } |
2041 | ||
84957a8a | 2042 | err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); |
93446edc CL |
2043 | if (err < 0) |
2044 | goto _error; | |
84957a8a CL |
2045 | list_add(&mixer->list, &chip->mixer_list); |
2046 | return 0; | |
93446edc CL |
2047 | |
2048 | _error: | |
2049 | snd_usb_mixer_free(mixer); | |
2050 | return err; | |
84957a8a CL |
2051 | } |
2052 | ||
2053 | void snd_usb_mixer_disconnect(struct list_head *p) | |
2054 | { | |
6639b6c2 CL |
2055 | struct usb_mixer_interface *mixer; |
2056 | ||
2057 | mixer = list_entry(p, struct usb_mixer_interface, list); | |
68df9de1 MK |
2058 | usb_kill_urb(mixer->urb); |
2059 | usb_kill_urb(mixer->rc_urb); | |
84957a8a | 2060 | } |