1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Linux driver for TerraTec DMX 6Fire USB
4 *
5 * Mixer control
6 *
7 * Author: Torsten Schenk <torsten.schenk@zoho.com>
8 * Created: Jan 01, 2011
9 * Copyright: (C) Torsten Schenk
10 *
11 * Thanks to:
12 * - Holger Ruckdeschel: he found out how to control individual channel
13 * volumes and introduced mute switch
14 */
15
16 #include <linux/interrupt.h>
17 #include <sound/control.h>
18 #include <sound/tlv.h>
19
20 #include "control.h"
21 #include "comm.h"
22 #include "chip.h"
23
24 static const char * const opt_coax_texts[2] = { "Optical", "Coax" };
25 static const char * const line_phono_texts[2] = { "Line", "Phono" };
26
27 /*
28 * data that needs to be sent to device. sets up card internal stuff.
29 * values dumped from windows driver and filtered by trial'n'error.
30 */
31 static const struct {
32 u8 type;
33 u8 reg;
34 u8 value;
35 }
36 init_data[] = {
37 { 0x22, 0x00, 0x00 }, { 0x20, 0x00, 0x08 }, { 0x22, 0x01, 0x01 },
38 { 0x20, 0x01, 0x08 }, { 0x22, 0x02, 0x00 }, { 0x20, 0x02, 0x08 },
39 { 0x22, 0x03, 0x00 }, { 0x20, 0x03, 0x08 }, { 0x22, 0x04, 0x00 },
40 { 0x20, 0x04, 0x08 }, { 0x22, 0x05, 0x01 }, { 0x20, 0x05, 0x08 },
41 { 0x22, 0x04, 0x01 }, { 0x12, 0x04, 0x00 }, { 0x12, 0x05, 0x00 },
42 { 0x12, 0x0d, 0x38 }, { 0x12, 0x21, 0x82 }, { 0x12, 0x22, 0x80 },
43 { 0x12, 0x23, 0x00 }, { 0x12, 0x06, 0x02 }, { 0x12, 0x03, 0x00 },
44 { 0x12, 0x02, 0x00 }, { 0x22, 0x03, 0x01 },
45 { 0 } /* TERMINATING ENTRY */
46 };
47
48 static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 };
49 /* values to write to soundcard register for all samplerates */
50 static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01};
51 static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00};
52
53 static DECLARE_TLV_DB_MINMAX(tlv_output, -9000, 0);
54 static DECLARE_TLV_DB_MINMAX(tlv_input, -1500, 1500);
55
56 enum {
57 DIGITAL_THRU_ONLY_SAMPLERATE = 3
58 };
59
usb6fire_control_output_vol_update(struct control_runtime * rt)60 static void usb6fire_control_output_vol_update(struct control_runtime *rt)
61 {
62 struct comm_runtime *comm_rt = rt->chip->comm;
63 int i;
64
65 if (comm_rt)
66 for (i = 0; i < 6; i++)
67 if (!(rt->ovol_updated & (1 << i))) {
68 comm_rt->write8(comm_rt, 0x12, 0x0f + i,
69 180 - rt->output_vol[i]);
70 rt->ovol_updated |= 1 << i;
71 }
72 }
73
usb6fire_control_output_mute_update(struct control_runtime * rt)74 static void usb6fire_control_output_mute_update(struct control_runtime *rt)
75 {
76 struct comm_runtime *comm_rt = rt->chip->comm;
77
78 if (comm_rt)
79 comm_rt->write8(comm_rt, 0x12, 0x0e, ~rt->output_mute);
80 }
81
usb6fire_control_input_vol_update(struct control_runtime * rt)82 static void usb6fire_control_input_vol_update(struct control_runtime *rt)
83 {
84 struct comm_runtime *comm_rt = rt->chip->comm;
85 int i;
86
87 if (comm_rt)
88 for (i = 0; i < 2; i++)
89 if (!(rt->ivol_updated & (1 << i))) {
90 comm_rt->write8(comm_rt, 0x12, 0x1c + i,
91 rt->input_vol[i] & 0x3f);
92 rt->ivol_updated |= 1 << i;
93 }
94 }
95
usb6fire_control_line_phono_update(struct control_runtime * rt)96 static void usb6fire_control_line_phono_update(struct control_runtime *rt)
97 {
98 struct comm_runtime *comm_rt = rt->chip->comm;
99 if (comm_rt) {
100 comm_rt->write8(comm_rt, 0x22, 0x02, rt->line_phono_switch);
101 comm_rt->write8(comm_rt, 0x21, 0x02, rt->line_phono_switch);
102 }
103 }
104
usb6fire_control_opt_coax_update(struct control_runtime * rt)105 static void usb6fire_control_opt_coax_update(struct control_runtime *rt)
106 {
107 struct comm_runtime *comm_rt = rt->chip->comm;
108 if (comm_rt) {
109 comm_rt->write8(comm_rt, 0x22, 0x00, rt->opt_coax_switch);
110 comm_rt->write8(comm_rt, 0x21, 0x00, rt->opt_coax_switch);
111 }
112 }
113
usb6fire_control_set_rate(struct control_runtime * rt,int rate)114 static int usb6fire_control_set_rate(struct control_runtime *rt, int rate)
115 {
116 int ret;
117 struct usb_device *device = rt->chip->dev;
118 struct comm_runtime *comm_rt = rt->chip->comm;
119
120 if (rate < 0 || rate >= CONTROL_N_RATES)
121 return -EINVAL;
122
123 ret = usb_set_interface(device, 1, rates_altsetting[rate]);
124 if (ret < 0)
125 return ret;
126
127 /* set soundcard clock */
128 ret = comm_rt->write16(comm_rt, 0x02, 0x01, rates_6fire_vl[rate],
129 rates_6fire_vh[rate]);
130 if (ret < 0)
131 return ret;
132
133 return 0;
134 }
135
usb6fire_control_set_channels(struct control_runtime * rt,int n_analog_out,int n_analog_in,bool spdif_out,bool spdif_in)136 static int usb6fire_control_set_channels(
137 struct control_runtime *rt, int n_analog_out,
138 int n_analog_in, bool spdif_out, bool spdif_in)
139 {
140 int ret;
141 struct comm_runtime *comm_rt = rt->chip->comm;
142
143 /* enable analog inputs and outputs
144 * (one bit per stereo-channel) */
145 ret = comm_rt->write16(comm_rt, 0x02, 0x02,
146 (1 << (n_analog_out / 2)) - 1,
147 (1 << (n_analog_in / 2)) - 1);
148 if (ret < 0)
149 return ret;
150
151 /* disable digital inputs and outputs */
152 /* TODO: use spdif_x to enable/disable digital channels */
153 ret = comm_rt->write16(comm_rt, 0x02, 0x03, 0x00, 0x00);
154 if (ret < 0)
155 return ret;
156
157 return 0;
158 }
159
usb6fire_control_streaming_update(struct control_runtime * rt)160 static int usb6fire_control_streaming_update(struct control_runtime *rt)
161 {
162 struct comm_runtime *comm_rt = rt->chip->comm;
163
164 if (comm_rt) {
165 if (!rt->usb_streaming && rt->digital_thru_switch)
166 usb6fire_control_set_rate(rt,
167 DIGITAL_THRU_ONLY_SAMPLERATE);
168 return comm_rt->write16(comm_rt, 0x02, 0x00, 0x00,
169 (rt->usb_streaming ? 0x01 : 0x00) |
170 (rt->digital_thru_switch ? 0x08 : 0x00));
171 }
172 return -EINVAL;
173 }
174
usb6fire_control_output_vol_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)175 static int usb6fire_control_output_vol_info(struct snd_kcontrol *kcontrol,
176 struct snd_ctl_elem_info *uinfo)
177 {
178 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
179 uinfo->count = 2;
180 uinfo->value.integer.min = 0;
181 uinfo->value.integer.max = 180;
182 return 0;
183 }
184
usb6fire_control_output_vol_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)185 static int usb6fire_control_output_vol_put(struct snd_kcontrol *kcontrol,
186 struct snd_ctl_elem_value *ucontrol)
187 {
188 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
189 unsigned int ch = kcontrol->private_value;
190 int changed = 0;
191
192 if (ch > 4) {
193 dev_err(&rt->chip->dev->dev,
194 "Invalid channel in volume control.");
195 return -EINVAL;
196 }
197
198 if (rt->output_vol[ch] != ucontrol->value.integer.value[0]) {
199 rt->output_vol[ch] = ucontrol->value.integer.value[0];
200 rt->ovol_updated &= ~(1 << ch);
201 changed = 1;
202 }
203 if (rt->output_vol[ch + 1] != ucontrol->value.integer.value[1]) {
204 rt->output_vol[ch + 1] = ucontrol->value.integer.value[1];
205 rt->ovol_updated &= ~(2 << ch);
206 changed = 1;
207 }
208
209 if (changed)
210 usb6fire_control_output_vol_update(rt);
211
212 return changed;
213 }
214
usb6fire_control_output_vol_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)215 static int usb6fire_control_output_vol_get(struct snd_kcontrol *kcontrol,
216 struct snd_ctl_elem_value *ucontrol)
217 {
218 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
219 unsigned int ch = kcontrol->private_value;
220
221 if (ch > 4) {
222 dev_err(&rt->chip->dev->dev,
223 "Invalid channel in volume control.");
224 return -EINVAL;
225 }
226
227 ucontrol->value.integer.value[0] = rt->output_vol[ch];
228 ucontrol->value.integer.value[1] = rt->output_vol[ch + 1];
229 return 0;
230 }
231
usb6fire_control_output_mute_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)232 static int usb6fire_control_output_mute_put(struct snd_kcontrol *kcontrol,
233 struct snd_ctl_elem_value *ucontrol)
234 {
235 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
236 unsigned int ch = kcontrol->private_value;
237 u8 old = rt->output_mute;
238 u8 value = 0;
239
240 if (ch > 4) {
241 dev_err(&rt->chip->dev->dev,
242 "Invalid channel in volume control.");
243 return -EINVAL;
244 }
245
246 rt->output_mute &= ~(3 << ch);
247 if (ucontrol->value.integer.value[0])
248 value |= 1;
249 if (ucontrol->value.integer.value[1])
250 value |= 2;
251 rt->output_mute |= value << ch;
252
253 if (rt->output_mute != old)
254 usb6fire_control_output_mute_update(rt);
255
256 return rt->output_mute != old;
257 }
258
usb6fire_control_output_mute_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)259 static int usb6fire_control_output_mute_get(struct snd_kcontrol *kcontrol,
260 struct snd_ctl_elem_value *ucontrol)
261 {
262 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
263 unsigned int ch = kcontrol->private_value;
264 u8 value = rt->output_mute >> ch;
265
266 if (ch > 4) {
267 dev_err(&rt->chip->dev->dev,
268 "Invalid channel in volume control.");
269 return -EINVAL;
270 }
271
272 ucontrol->value.integer.value[0] = 1 & value;
273 value >>= 1;
274 ucontrol->value.integer.value[1] = 1 & value;
275
276 return 0;
277 }
278
usb6fire_control_input_vol_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)279 static int usb6fire_control_input_vol_info(struct snd_kcontrol *kcontrol,
280 struct snd_ctl_elem_info *uinfo)
281 {
282 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
283 uinfo->count = 2;
284 uinfo->value.integer.min = 0;
285 uinfo->value.integer.max = 30;
286 return 0;
287 }
288
usb6fire_control_input_vol_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)289 static int usb6fire_control_input_vol_put(struct snd_kcontrol *kcontrol,
290 struct snd_ctl_elem_value *ucontrol)
291 {
292 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
293 int vol0 = ucontrol->value.integer.value[0] - 15;
294 int vol1 = ucontrol->value.integer.value[1] - 15;
295 int changed = 0;
296
297 if (rt->input_vol[0] != vol0) {
298 rt->input_vol[0] = vol0;
299 rt->ivol_updated &= ~(1 << 0);
300 changed = 1;
301 }
302 if (rt->input_vol[1] != vol1) {
303 rt->input_vol[1] = vol1;
304 rt->ivol_updated &= ~(1 << 1);
305 changed = 1;
306 }
307
308 if (changed)
309 usb6fire_control_input_vol_update(rt);
310
311 return changed;
312 }
313
usb6fire_control_input_vol_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)314 static int usb6fire_control_input_vol_get(struct snd_kcontrol *kcontrol,
315 struct snd_ctl_elem_value *ucontrol)
316 {
317 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
318
319 ucontrol->value.integer.value[0] = rt->input_vol[0] + 15;
320 ucontrol->value.integer.value[1] = rt->input_vol[1] + 15;
321
322 return 0;
323 }
324
usb6fire_control_line_phono_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)325 static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol,
326 struct snd_ctl_elem_info *uinfo)
327 {
328 return snd_ctl_enum_info(uinfo, 1, 2, line_phono_texts);
329 }
330
usb6fire_control_line_phono_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)331 static int usb6fire_control_line_phono_put(struct snd_kcontrol *kcontrol,
332 struct snd_ctl_elem_value *ucontrol)
333 {
334 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
335 int changed = 0;
336 if (rt->line_phono_switch != ucontrol->value.integer.value[0]) {
337 rt->line_phono_switch = ucontrol->value.integer.value[0];
338 usb6fire_control_line_phono_update(rt);
339 changed = 1;
340 }
341 return changed;
342 }
343
usb6fire_control_line_phono_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)344 static int usb6fire_control_line_phono_get(struct snd_kcontrol *kcontrol,
345 struct snd_ctl_elem_value *ucontrol)
346 {
347 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
348 ucontrol->value.integer.value[0] = rt->line_phono_switch;
349 return 0;
350 }
351
usb6fire_control_opt_coax_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)352 static int usb6fire_control_opt_coax_info(struct snd_kcontrol *kcontrol,
353 struct snd_ctl_elem_info *uinfo)
354 {
355 return snd_ctl_enum_info(uinfo, 1, 2, opt_coax_texts);
356 }
357
usb6fire_control_opt_coax_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)358 static int usb6fire_control_opt_coax_put(struct snd_kcontrol *kcontrol,
359 struct snd_ctl_elem_value *ucontrol)
360 {
361 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
362 int changed = 0;
363
364 if (rt->opt_coax_switch != ucontrol->value.enumerated.item[0]) {
365 rt->opt_coax_switch = ucontrol->value.enumerated.item[0];
366 usb6fire_control_opt_coax_update(rt);
367 changed = 1;
368 }
369 return changed;
370 }
371
usb6fire_control_opt_coax_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)372 static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol,
373 struct snd_ctl_elem_value *ucontrol)
374 {
375 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
376 ucontrol->value.enumerated.item[0] = rt->opt_coax_switch;
377 return 0;
378 }
379
usb6fire_control_digital_thru_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)380 static int usb6fire_control_digital_thru_put(struct snd_kcontrol *kcontrol,
381 struct snd_ctl_elem_value *ucontrol)
382 {
383 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
384 int changed = 0;
385
386 if (rt->digital_thru_switch != ucontrol->value.integer.value[0]) {
387 rt->digital_thru_switch = ucontrol->value.integer.value[0];
388 usb6fire_control_streaming_update(rt);
389 changed = 1;
390 }
391 return changed;
392 }
393
usb6fire_control_digital_thru_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)394 static int usb6fire_control_digital_thru_get(struct snd_kcontrol *kcontrol,
395 struct snd_ctl_elem_value *ucontrol)
396 {
397 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
398 ucontrol->value.integer.value[0] = rt->digital_thru_switch;
399 return 0;
400 }
401
402 static const struct snd_kcontrol_new vol_elements[] = {
403 {
404 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
405 .name = "Analog Playback Volume",
406 .index = 0,
407 .private_value = 0,
408 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
409 SNDRV_CTL_ELEM_ACCESS_TLV_READ,
410 .info = usb6fire_control_output_vol_info,
411 .get = usb6fire_control_output_vol_get,
412 .put = usb6fire_control_output_vol_put,
413 .tlv = { .p = tlv_output }
414 },
415 {
416 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
417 .name = "Analog Playback Volume",
418 .index = 1,
419 .private_value = 2,
420 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
421 SNDRV_CTL_ELEM_ACCESS_TLV_READ,
422 .info = usb6fire_control_output_vol_info,
423 .get = usb6fire_control_output_vol_get,
424 .put = usb6fire_control_output_vol_put,
425 .tlv = { .p = tlv_output }
426 },
427 {
428 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
429 .name = "Analog Playback Volume",
430 .index = 2,
431 .private_value = 4,
432 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
433 SNDRV_CTL_ELEM_ACCESS_TLV_READ,
434 .info = usb6fire_control_output_vol_info,
435 .get = usb6fire_control_output_vol_get,
436 .put = usb6fire_control_output_vol_put,
437 .tlv = { .p = tlv_output }
438 },
439 {}
440 };
441
442 static const struct snd_kcontrol_new mute_elements[] = {
443 {
444 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
445 .name = "Analog Playback Switch",
446 .index = 0,
447 .private_value = 0,
448 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
449 .info = snd_ctl_boolean_stereo_info,
450 .get = usb6fire_control_output_mute_get,
451 .put = usb6fire_control_output_mute_put,
452 },
453 {
454 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
455 .name = "Analog Playback Switch",
456 .index = 1,
457 .private_value = 2,
458 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
459 .info = snd_ctl_boolean_stereo_info,
460 .get = usb6fire_control_output_mute_get,
461 .put = usb6fire_control_output_mute_put,
462 },
463 {
464 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
465 .name = "Analog Playback Switch",
466 .index = 2,
467 .private_value = 4,
468 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
469 .info = snd_ctl_boolean_stereo_info,
470 .get = usb6fire_control_output_mute_get,
471 .put = usb6fire_control_output_mute_put,
472 },
473 {}
474 };
475
476 static const struct snd_kcontrol_new elements[] = {
477 {
478 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
479 .name = "Line/Phono Capture Route",
480 .index = 0,
481 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
482 .info = usb6fire_control_line_phono_info,
483 .get = usb6fire_control_line_phono_get,
484 .put = usb6fire_control_line_phono_put
485 },
486 {
487 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
488 .name = "Opt/Coax Capture Route",
489 .index = 0,
490 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
491 .info = usb6fire_control_opt_coax_info,
492 .get = usb6fire_control_opt_coax_get,
493 .put = usb6fire_control_opt_coax_put
494 },
495 {
496 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
497 .name = "Digital Thru Playback Route",
498 .index = 0,
499 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
500 .info = snd_ctl_boolean_mono_info,
501 .get = usb6fire_control_digital_thru_get,
502 .put = usb6fire_control_digital_thru_put
503 },
504 {
505 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
506 .name = "Analog Capture Volume",
507 .index = 0,
508 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
509 SNDRV_CTL_ELEM_ACCESS_TLV_READ,
510 .info = usb6fire_control_input_vol_info,
511 .get = usb6fire_control_input_vol_get,
512 .put = usb6fire_control_input_vol_put,
513 .tlv = { .p = tlv_input }
514 },
515 {}
516 };
517
usb6fire_control_add_virtual(struct control_runtime * rt,struct snd_card * card,char * name,const struct snd_kcontrol_new * elems)518 static int usb6fire_control_add_virtual(
519 struct control_runtime *rt,
520 struct snd_card *card,
521 char *name,
522 const struct snd_kcontrol_new *elems)
523 {
524 int ret;
525 int i;
526 struct snd_kcontrol *vmaster =
527 snd_ctl_make_virtual_master(name, tlv_output);
528 struct snd_kcontrol *control;
529
530 if (!vmaster)
531 return -ENOMEM;
532 ret = snd_ctl_add(card, vmaster);
533 if (ret < 0)
534 return ret;
535
536 i = 0;
537 while (elems[i].name) {
538 control = snd_ctl_new1(&elems[i], rt);
539 if (!control)
540 return -ENOMEM;
541 ret = snd_ctl_add(card, control);
542 if (ret < 0)
543 return ret;
544 ret = snd_ctl_add_follower(vmaster, control);
545 if (ret < 0)
546 return ret;
547 i++;
548 }
549 return 0;
550 }
551
usb6fire_control_init(struct sfire_chip * chip)552 int usb6fire_control_init(struct sfire_chip *chip)
553 {
554 int i;
555 int ret;
556 struct control_runtime *rt = kzalloc_obj(struct control_runtime);
557 struct comm_runtime *comm_rt = chip->comm;
558
559 if (!rt)
560 return -ENOMEM;
561
562 rt->chip = chip;
563 rt->update_streaming = usb6fire_control_streaming_update;
564 rt->set_rate = usb6fire_control_set_rate;
565 rt->set_channels = usb6fire_control_set_channels;
566
567 i = 0;
568 while (init_data[i].type) {
569 comm_rt->write8(comm_rt, init_data[i].type, init_data[i].reg,
570 init_data[i].value);
571 i++;
572 }
573
574 usb6fire_control_opt_coax_update(rt);
575 usb6fire_control_line_phono_update(rt);
576 usb6fire_control_output_vol_update(rt);
577 usb6fire_control_output_mute_update(rt);
578 usb6fire_control_input_vol_update(rt);
579 usb6fire_control_streaming_update(rt);
580
581 ret = usb6fire_control_add_virtual(rt, chip->card,
582 "Master Playback Volume", vol_elements);
583 if (ret) {
584 dev_err(&chip->dev->dev, "cannot add control.\n");
585 kfree(rt);
586 return ret;
587 }
588 ret = usb6fire_control_add_virtual(rt, chip->card,
589 "Master Playback Switch", mute_elements);
590 if (ret) {
591 dev_err(&chip->dev->dev, "cannot add control.\n");
592 kfree(rt);
593 return ret;
594 }
595
596 i = 0;
597 while (elements[i].name) {
598 ret = snd_ctl_add(chip->card, snd_ctl_new1(&elements[i], rt));
599 if (ret < 0) {
600 kfree(rt);
601 dev_err(&chip->dev->dev, "cannot add control.\n");
602 return ret;
603 }
604 i++;
605 }
606
607 chip->control = rt;
608 return 0;
609 }
610
usb6fire_control_abort(struct sfire_chip * chip)611 void usb6fire_control_abort(struct sfire_chip *chip)
612 {}
613
usb6fire_control_destroy(struct sfire_chip * chip)614 void usb6fire_control_destroy(struct sfire_chip *chip)
615 {
616 kfree(chip->control);
617 chip->control = NULL;
618 }
619