1 /*
2 * ALSA driver for ICEnsemble ICE1712 (Envy24)
3 *
4 * Lowlevel functions for M-Audio Audiophile 192, Revolution 7.1 and 5.1
5 *
6 * Copyright (c) 2003 Takashi Iwai <tiwai@suse.de>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24 #include <asm/io.h>
25 #include <linux/delay.h>
26 #include <linux/interrupt.h>
27 #include <linux/init.h>
28 #include <linux/slab.h>
29 #include <sound/core.h>
30
31 #include "ice1712.h"
32 #include "envy24ht.h"
33 #include "revo.h"
34
35 /* a non-standard I2C device for revo51 */
36 struct revo51_spec {
37 struct snd_i2c_device *dev;
38 struct snd_pt2258 *pt2258;
39 };
40
revo_i2s_mclk_changed(struct snd_ice1712 * ice)41 static void revo_i2s_mclk_changed(struct snd_ice1712 *ice)
42 {
43 /* assert PRST# to converters; MT05 bit 7 */
44 outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
45 mdelay(5);
46 /* deassert PRST# */
47 outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));
48 }
49
50 /*
51 * change the rate of Envy24HT, AK4355 and AK4381
52 */
revo_set_rate_val(struct snd_akm4xxx * ak,unsigned int rate)53 static void revo_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
54 {
55 unsigned char old, tmp, dfs;
56 int reg, shift;
57
58 if (rate == 0) /* no hint - S/PDIF input is master, simply return */
59 return;
60
61 /* adjust DFS on codecs */
62 if (rate > 96000)
63 dfs = 2;
64 else if (rate > 48000)
65 dfs = 1;
66 else
67 dfs = 0;
68
69 if (ak->type == SND_AK4355 || ak->type == SND_AK4358) {
70 reg = 2;
71 shift = 4;
72 } else {
73 reg = 1;
74 shift = 3;
75 }
76 tmp = snd_akm4xxx_get(ak, 0, reg);
77 old = (tmp >> shift) & 0x03;
78 if (old == dfs)
79 return;
80
81 /* reset DFS */
82 snd_akm4xxx_reset(ak, 1);
83 tmp = snd_akm4xxx_get(ak, 0, reg);
84 tmp &= ~(0x03 << shift);
85 tmp |= dfs << shift;
86 /* snd_akm4xxx_write(ak, 0, reg, tmp); */
87 snd_akm4xxx_set(ak, 0, reg, tmp); /* value is written in reset(0) */
88 snd_akm4xxx_reset(ak, 0);
89 }
90
91 /*
92 * I2C access to the PT2258 volume controller on GPIO 6/7 (Revolution 5.1)
93 */
94
revo_i2c_start(struct snd_i2c_bus * bus)95 static void revo_i2c_start(struct snd_i2c_bus *bus)
96 {
97 struct snd_ice1712 *ice = bus->private_data;
98 snd_ice1712_save_gpio_status(ice);
99 }
100
revo_i2c_stop(struct snd_i2c_bus * bus)101 static void revo_i2c_stop(struct snd_i2c_bus *bus)
102 {
103 struct snd_ice1712 *ice = bus->private_data;
104 snd_ice1712_restore_gpio_status(ice);
105 }
106
revo_i2c_direction(struct snd_i2c_bus * bus,int clock,int data)107 static void revo_i2c_direction(struct snd_i2c_bus *bus, int clock, int data)
108 {
109 struct snd_ice1712 *ice = bus->private_data;
110 unsigned int mask, val;
111
112 val = 0;
113 if (clock)
114 val |= VT1724_REVO_I2C_CLOCK; /* write SCL */
115 if (data)
116 val |= VT1724_REVO_I2C_DATA; /* write SDA */
117 mask = VT1724_REVO_I2C_CLOCK | VT1724_REVO_I2C_DATA;
118 ice->gpio.direction &= ~mask;
119 ice->gpio.direction |= val;
120 snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
121 snd_ice1712_gpio_set_mask(ice, ~mask);
122 }
123
revo_i2c_setlines(struct snd_i2c_bus * bus,int clk,int data)124 static void revo_i2c_setlines(struct snd_i2c_bus *bus, int clk, int data)
125 {
126 struct snd_ice1712 *ice = bus->private_data;
127 unsigned int val = 0;
128
129 if (clk)
130 val |= VT1724_REVO_I2C_CLOCK;
131 if (data)
132 val |= VT1724_REVO_I2C_DATA;
133 snd_ice1712_gpio_write_bits(ice,
134 VT1724_REVO_I2C_DATA |
135 VT1724_REVO_I2C_CLOCK, val);
136 udelay(5);
137 }
138
revo_i2c_getdata(struct snd_i2c_bus * bus,int ack)139 static int revo_i2c_getdata(struct snd_i2c_bus *bus, int ack)
140 {
141 struct snd_ice1712 *ice = bus->private_data;
142 int bit;
143
144 if (ack)
145 udelay(5);
146 bit = snd_ice1712_gpio_read_bits(ice, VT1724_REVO_I2C_DATA) ? 1 : 0;
147 return bit;
148 }
149
150 static struct snd_i2c_bit_ops revo51_bit_ops = {
151 .start = revo_i2c_start,
152 .stop = revo_i2c_stop,
153 .direction = revo_i2c_direction,
154 .setlines = revo_i2c_setlines,
155 .getdata = revo_i2c_getdata,
156 };
157
revo51_i2c_init(struct snd_ice1712 * ice,struct snd_pt2258 * pt)158 static int revo51_i2c_init(struct snd_ice1712 *ice,
159 struct snd_pt2258 *pt)
160 {
161 struct revo51_spec *spec;
162 int err;
163
164 spec = kzalloc(sizeof(*spec), GFP_KERNEL);
165 if (!spec)
166 return -ENOMEM;
167 ice->spec = spec;
168
169 /* create the I2C bus */
170 err = snd_i2c_bus_create(ice->card, "ICE1724 GPIO6", NULL, &ice->i2c);
171 if (err < 0)
172 return err;
173
174 ice->i2c->private_data = ice;
175 ice->i2c->hw_ops.bit = &revo51_bit_ops;
176
177 /* create the I2C device */
178 err = snd_i2c_device_create(ice->i2c, "PT2258", 0x40, &spec->dev);
179 if (err < 0)
180 return err;
181
182 pt->card = ice->card;
183 pt->i2c_bus = ice->i2c;
184 pt->i2c_dev = spec->dev;
185 spec->pt2258 = pt;
186
187 snd_pt2258_reset(pt);
188
189 return 0;
190 }
191
192 /*
193 * initialize the chips on M-Audio Revolution cards
194 */
195
196 #define AK_DAC(xname,xch) { .name = xname, .num_channels = xch }
197
198 static const struct snd_akm4xxx_dac_channel revo71_front[] = {
199 {
200 .name = "PCM Playback Volume",
201 .num_channels = 2,
202 /* front channels DAC supports muting */
203 .switch_name = "PCM Playback Switch",
204 },
205 };
206
207 static const struct snd_akm4xxx_dac_channel revo71_surround[] = {
208 AK_DAC("PCM Center Playback Volume", 1),
209 AK_DAC("PCM LFE Playback Volume", 1),
210 AK_DAC("PCM Side Playback Volume", 2),
211 AK_DAC("PCM Rear Playback Volume", 2),
212 };
213
214 static const struct snd_akm4xxx_dac_channel revo51_dac[] = {
215 AK_DAC("PCM Playback Volume", 2),
216 AK_DAC("PCM Center Playback Volume", 1),
217 AK_DAC("PCM LFE Playback Volume", 1),
218 AK_DAC("PCM Rear Playback Volume", 2),
219 AK_DAC("PCM Headphone Volume", 2),
220 };
221
222 static const char *revo51_adc_input_names[] = {
223 "Mic",
224 "Line",
225 "CD",
226 NULL
227 };
228
229 static const struct snd_akm4xxx_adc_channel revo51_adc[] = {
230 {
231 .name = "PCM Capture Volume",
232 .switch_name = "PCM Capture Switch",
233 .num_channels = 2,
234 .input_names = revo51_adc_input_names
235 },
236 };
237
238 static struct snd_akm4xxx akm_revo_front __devinitdata = {
239 .type = SND_AK4381,
240 .num_dacs = 2,
241 .ops = {
242 .set_rate_val = revo_set_rate_val
243 },
244 .dac_info = revo71_front,
245 };
246
247 static struct snd_ak4xxx_private akm_revo_front_priv __devinitdata = {
248 .caddr = 1,
249 .cif = 0,
250 .data_mask = VT1724_REVO_CDOUT,
251 .clk_mask = VT1724_REVO_CCLK,
252 .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
253 .cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS2,
254 .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
255 .add_flags = VT1724_REVO_CCLK, /* high at init */
256 .mask_flags = 0,
257 };
258
259 static struct snd_akm4xxx akm_revo_surround __devinitdata = {
260 .type = SND_AK4355,
261 .idx_offset = 1,
262 .num_dacs = 6,
263 .ops = {
264 .set_rate_val = revo_set_rate_val
265 },
266 .dac_info = revo71_surround,
267 };
268
269 static struct snd_ak4xxx_private akm_revo_surround_priv __devinitdata = {
270 .caddr = 3,
271 .cif = 0,
272 .data_mask = VT1724_REVO_CDOUT,
273 .clk_mask = VT1724_REVO_CCLK,
274 .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
275 .cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS1,
276 .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
277 .add_flags = VT1724_REVO_CCLK, /* high at init */
278 .mask_flags = 0,
279 };
280
281 static struct snd_akm4xxx akm_revo51 __devinitdata = {
282 .type = SND_AK4358,
283 .num_dacs = 8,
284 .ops = {
285 .set_rate_val = revo_set_rate_val
286 },
287 .dac_info = revo51_dac,
288 };
289
290 static struct snd_ak4xxx_private akm_revo51_priv __devinitdata = {
291 .caddr = 2,
292 .cif = 0,
293 .data_mask = VT1724_REVO_CDOUT,
294 .clk_mask = VT1724_REVO_CCLK,
295 .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1,
296 .cs_addr = VT1724_REVO_CS1,
297 .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1,
298 .add_flags = VT1724_REVO_CCLK, /* high at init */
299 .mask_flags = 0,
300 };
301
302 static struct snd_akm4xxx akm_revo51_adc __devinitdata = {
303 .type = SND_AK5365,
304 .num_adcs = 2,
305 .adc_info = revo51_adc,
306 };
307
308 static struct snd_ak4xxx_private akm_revo51_adc_priv __devinitdata = {
309 .caddr = 2,
310 .cif = 0,
311 .data_mask = VT1724_REVO_CDOUT,
312 .clk_mask = VT1724_REVO_CCLK,
313 .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1,
314 .cs_addr = VT1724_REVO_CS0,
315 .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1,
316 .add_flags = VT1724_REVO_CCLK, /* high at init */
317 .mask_flags = 0,
318 };
319
320 static struct snd_pt2258 ptc_revo51_volume;
321
322 /* AK4358 for AP192 DAC, AK5385A for ADC */
ap192_set_rate_val(struct snd_akm4xxx * ak,unsigned int rate)323 static void ap192_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
324 {
325 struct snd_ice1712 *ice = ak->private_data[0];
326 int dfs;
327
328 revo_set_rate_val(ak, rate);
329
330 /* reset CKS */
331 snd_ice1712_gpio_write_bits(ice, 1 << 8, rate > 96000 ? 1 << 8 : 0);
332 /* reset DFS pins of AK5385A for ADC, too */
333 if (rate > 96000)
334 dfs = 2;
335 else if (rate > 48000)
336 dfs = 1;
337 else
338 dfs = 0;
339 snd_ice1712_gpio_write_bits(ice, 3 << 9, dfs << 9);
340 /* reset ADC */
341 snd_ice1712_gpio_write_bits(ice, 1 << 11, 0);
342 snd_ice1712_gpio_write_bits(ice, 1 << 11, 1 << 11);
343 }
344
345 static const struct snd_akm4xxx_dac_channel ap192_dac[] = {
346 AK_DAC("PCM Playback Volume", 2)
347 };
348
349 static struct snd_akm4xxx akm_ap192 __devinitdata = {
350 .type = SND_AK4358,
351 .num_dacs = 2,
352 .ops = {
353 .set_rate_val = ap192_set_rate_val
354 },
355 .dac_info = ap192_dac,
356 };
357
358 static struct snd_ak4xxx_private akm_ap192_priv __devinitdata = {
359 .caddr = 2,
360 .cif = 0,
361 .data_mask = VT1724_REVO_CDOUT,
362 .clk_mask = VT1724_REVO_CCLK,
363 .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1,
364 .cs_addr = VT1724_REVO_CS1,
365 .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1,
366 .add_flags = VT1724_REVO_CCLK, /* high at init */
367 .mask_flags = 0,
368 };
369
370 /* AK4114 support on Audiophile 192 */
371 /* CDTO (pin 32) -- GPIO2 pin 52
372 * CDTI (pin 33) -- GPIO3 pin 53 (shared with AK4358)
373 * CCLK (pin 34) -- GPIO1 pin 51 (shared with AK4358)
374 * CSN (pin 35) -- GPIO7 pin 59
375 */
376 #define AK4114_ADDR 0x02
377
write_data(struct snd_ice1712 * ice,unsigned int gpio,unsigned int data,int idx)378 static void write_data(struct snd_ice1712 *ice, unsigned int gpio,
379 unsigned int data, int idx)
380 {
381 for (; idx >= 0; idx--) {
382 /* drop clock */
383 gpio &= ~VT1724_REVO_CCLK;
384 snd_ice1712_gpio_write(ice, gpio);
385 udelay(1);
386 /* set data */
387 if (data & (1 << idx))
388 gpio |= VT1724_REVO_CDOUT;
389 else
390 gpio &= ~VT1724_REVO_CDOUT;
391 snd_ice1712_gpio_write(ice, gpio);
392 udelay(1);
393 /* raise clock */
394 gpio |= VT1724_REVO_CCLK;
395 snd_ice1712_gpio_write(ice, gpio);
396 udelay(1);
397 }
398 }
399
read_data(struct snd_ice1712 * ice,unsigned int gpio,int idx)400 static unsigned char read_data(struct snd_ice1712 *ice, unsigned int gpio,
401 int idx)
402 {
403 unsigned char data = 0;
404
405 for (; idx >= 0; idx--) {
406 /* drop clock */
407 gpio &= ~VT1724_REVO_CCLK;
408 snd_ice1712_gpio_write(ice, gpio);
409 udelay(1);
410 /* read data */
411 if (snd_ice1712_gpio_read(ice) & VT1724_REVO_CDIN)
412 data |= (1 << idx);
413 udelay(1);
414 /* raise clock */
415 gpio |= VT1724_REVO_CCLK;
416 snd_ice1712_gpio_write(ice, gpio);
417 udelay(1);
418 }
419 return data;
420 }
421
ap192_4wire_start(struct snd_ice1712 * ice)422 static unsigned int ap192_4wire_start(struct snd_ice1712 *ice)
423 {
424 unsigned int tmp;
425
426 snd_ice1712_save_gpio_status(ice);
427 tmp = snd_ice1712_gpio_read(ice);
428 tmp |= VT1724_REVO_CCLK; /* high at init */
429 tmp |= VT1724_REVO_CS0;
430 tmp &= ~VT1724_REVO_CS1;
431 snd_ice1712_gpio_write(ice, tmp);
432 udelay(1);
433 return tmp;
434 }
435
ap192_4wire_finish(struct snd_ice1712 * ice,unsigned int tmp)436 static void ap192_4wire_finish(struct snd_ice1712 *ice, unsigned int tmp)
437 {
438 tmp |= VT1724_REVO_CS1;
439 tmp |= VT1724_REVO_CS0;
440 snd_ice1712_gpio_write(ice, tmp);
441 udelay(1);
442 snd_ice1712_restore_gpio_status(ice);
443 }
444
ap192_ak4114_write(void * private_data,unsigned char addr,unsigned char data)445 static void ap192_ak4114_write(void *private_data, unsigned char addr,
446 unsigned char data)
447 {
448 struct snd_ice1712 *ice = private_data;
449 unsigned int tmp, addrdata;
450
451 tmp = ap192_4wire_start(ice);
452 addrdata = (AK4114_ADDR << 6) | 0x20 | (addr & 0x1f);
453 addrdata = (addrdata << 8) | data;
454 write_data(ice, tmp, addrdata, 15);
455 ap192_4wire_finish(ice, tmp);
456 }
457
ap192_ak4114_read(void * private_data,unsigned char addr)458 static unsigned char ap192_ak4114_read(void *private_data, unsigned char addr)
459 {
460 struct snd_ice1712 *ice = private_data;
461 unsigned int tmp;
462 unsigned char data;
463
464 tmp = ap192_4wire_start(ice);
465 write_data(ice, tmp, (AK4114_ADDR << 6) | (addr & 0x1f), 7);
466 data = read_data(ice, tmp, 7);
467 ap192_4wire_finish(ice, tmp);
468 return data;
469 }
470
ap192_ak4114_init(struct snd_ice1712 * ice)471 static int __devinit ap192_ak4114_init(struct snd_ice1712 *ice)
472 {
473 static const unsigned char ak4114_init_vals[] = {
474 AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
475 AK4114_DIF_I24I2S,
476 AK4114_TX1E,
477 AK4114_EFH_1024 | AK4114_DIT | AK4114_IPS(1),
478 0,
479 0
480 };
481 static const unsigned char ak4114_init_txcsb[] = {
482 0x41, 0x02, 0x2c, 0x00, 0x00
483 };
484 struct ak4114 *ak;
485 int err;
486
487 err = snd_ak4114_create(ice->card,
488 ap192_ak4114_read,
489 ap192_ak4114_write,
490 ak4114_init_vals, ak4114_init_txcsb,
491 ice, &ak);
492 /* AK4114 in Revo cannot detect external rate correctly.
493 * No reason to stop capture stream due to incorrect checks */
494 ak->check_flags = AK4114_CHECK_NO_RATE;
495
496 return 0; /* error ignored; it's no fatal error */
497 }
498
revo_init(struct snd_ice1712 * ice)499 static int __devinit revo_init(struct snd_ice1712 *ice)
500 {
501 struct snd_akm4xxx *ak;
502 int err;
503
504 /* determine I2C, DACs and ADCs */
505 switch (ice->eeprom.subvendor) {
506 case VT1724_SUBDEVICE_REVOLUTION71:
507 ice->num_total_dacs = 8;
508 ice->num_total_adcs = 2;
509 ice->gpio.i2s_mclk_changed = revo_i2s_mclk_changed;
510 break;
511 case VT1724_SUBDEVICE_REVOLUTION51:
512 ice->num_total_dacs = 8;
513 ice->num_total_adcs = 2;
514 break;
515 case VT1724_SUBDEVICE_AUDIOPHILE192:
516 ice->num_total_dacs = 2;
517 ice->num_total_adcs = 2;
518 break;
519 default:
520 snd_BUG();
521 return -EINVAL;
522 }
523
524 /* second stage of initialization, analog parts and others */
525 ak = ice->akm = kcalloc(2, sizeof(struct snd_akm4xxx), GFP_KERNEL);
526 if (! ak)
527 return -ENOMEM;
528 switch (ice->eeprom.subvendor) {
529 case VT1724_SUBDEVICE_REVOLUTION71:
530 ice->akm_codecs = 2;
531 err = snd_ice1712_akm4xxx_init(ak, &akm_revo_front,
532 &akm_revo_front_priv, ice);
533 if (err < 0)
534 return err;
535 err = snd_ice1712_akm4xxx_init(ak+1, &akm_revo_surround,
536 &akm_revo_surround_priv, ice);
537 if (err < 0)
538 return err;
539 /* unmute all codecs */
540 snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE,
541 VT1724_REVO_MUTE);
542 break;
543 case VT1724_SUBDEVICE_REVOLUTION51:
544 ice->akm_codecs = 2;
545 err = snd_ice1712_akm4xxx_init(ak, &akm_revo51,
546 &akm_revo51_priv, ice);
547 if (err < 0)
548 return err;
549 err = snd_ice1712_akm4xxx_init(ak+1, &akm_revo51_adc,
550 &akm_revo51_adc_priv, ice);
551 if (err < 0)
552 return err;
553 err = revo51_i2c_init(ice, &ptc_revo51_volume);
554 if (err < 0)
555 return err;
556 /* unmute all codecs */
557 snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE,
558 VT1724_REVO_MUTE);
559 break;
560 case VT1724_SUBDEVICE_AUDIOPHILE192:
561 ice->akm_codecs = 1;
562 err = snd_ice1712_akm4xxx_init(ak, &akm_ap192, &akm_ap192_priv,
563 ice);
564 if (err < 0)
565 return err;
566
567 /* unmute all codecs */
568 snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE,
569 VT1724_REVO_MUTE);
570 break;
571 }
572
573 return 0;
574 }
575
576
revo_add_controls(struct snd_ice1712 * ice)577 static int __devinit revo_add_controls(struct snd_ice1712 *ice)
578 {
579 struct revo51_spec *spec;
580 int err;
581
582 switch (ice->eeprom.subvendor) {
583 case VT1724_SUBDEVICE_REVOLUTION71:
584 err = snd_ice1712_akm4xxx_build_controls(ice);
585 if (err < 0)
586 return err;
587 break;
588 case VT1724_SUBDEVICE_REVOLUTION51:
589 err = snd_ice1712_akm4xxx_build_controls(ice);
590 if (err < 0)
591 return err;
592 spec = ice->spec;
593 err = snd_pt2258_build_controls(spec->pt2258);
594 if (err < 0)
595 return err;
596 break;
597 case VT1724_SUBDEVICE_AUDIOPHILE192:
598 err = snd_ice1712_akm4xxx_build_controls(ice);
599 if (err < 0)
600 return err;
601 err = ap192_ak4114_init(ice);
602 if (err < 0)
603 return err;
604 break;
605 }
606 return 0;
607 }
608
609 /* entry point */
610 struct snd_ice1712_card_info snd_vt1724_revo_cards[] __devinitdata = {
611 {
612 .subvendor = VT1724_SUBDEVICE_REVOLUTION71,
613 .name = "M Audio Revolution-7.1",
614 .model = "revo71",
615 .chip_init = revo_init,
616 .build_controls = revo_add_controls,
617 },
618 {
619 .subvendor = VT1724_SUBDEVICE_REVOLUTION51,
620 .name = "M Audio Revolution-5.1",
621 .model = "revo51",
622 .chip_init = revo_init,
623 .build_controls = revo_add_controls,
624 },
625 {
626 .subvendor = VT1724_SUBDEVICE_AUDIOPHILE192,
627 .name = "M Audio Audiophile192",
628 .model = "ap192",
629 .chip_init = revo_init,
630 .build_controls = revo_add_controls,
631 },
632 { } /* terminator */
633 };
634