xref: /linux/sound/pci/ice1712/ews.c (revision 05a54fa773284d1a7923cdfdd8f0c8dabb98bd26)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *   ALSA driver for ICEnsemble ICE1712 (Envy24)
4  *
5  *   Lowlevel functions for Terratec EWS88MT/D, EWX24/96, DMX 6Fire
6  *
7  *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
8  *                    2002 Takashi Iwai <tiwai@suse.de>
9  */
10 
11 #include <linux/delay.h>
12 #include <linux/interrupt.h>
13 #include <linux/init.h>
14 #include <linux/slab.h>
15 #include <sound/core.h>
16 #include <sound/cs8427.h>
17 #include <sound/asoundef.h>
18 
19 #include "ice1712.h"
20 #include "ews.h"
21 
22 #define SND_CS8404
23 #include <sound/cs8403.h>
24 
25 enum {
26 	EWS_I2C_CS8404 = 0, EWS_I2C_PCF1, EWS_I2C_PCF2,
27 	EWS_I2C_88D = 0,
28 	EWS_I2C_6FIRE = 0
29 };
30 
31 
32 /* additional i2c devices for EWS boards */
33 struct ews_spec {
34 	struct snd_i2c_device *i2cdevs[3];
35 };
36 
37 /*
38  * access via i2c mode (for EWX 24/96, EWS 88MT&D)
39  */
40 
41 /* send SDA and SCL */
42 static void ewx_i2c_setlines(struct snd_i2c_bus *bus, int clk, int data)
43 {
44 	struct snd_ice1712 *ice = bus->private_data;
45 	unsigned char tmp = 0;
46 	if (clk)
47 		tmp |= ICE1712_EWX2496_SERIAL_CLOCK;
48 	if (data)
49 		tmp |= ICE1712_EWX2496_SERIAL_DATA;
50 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
51 	udelay(5);
52 }
53 
54 static int ewx_i2c_getclock(struct snd_i2c_bus *bus)
55 {
56 	struct snd_ice1712 *ice = bus->private_data;
57 	return snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & ICE1712_EWX2496_SERIAL_CLOCK ? 1 : 0;
58 }
59 
60 static int ewx_i2c_getdata(struct snd_i2c_bus *bus, int ack)
61 {
62 	struct snd_ice1712 *ice = bus->private_data;
63 	int bit;
64 	/* set RW pin to low */
65 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~ICE1712_EWX2496_RW);
66 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, 0);
67 	if (ack)
68 		udelay(5);
69 	bit = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & ICE1712_EWX2496_SERIAL_DATA ? 1 : 0;
70 	/* set RW pin to high */
71 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, ICE1712_EWX2496_RW);
72 	/* reset write mask */
73 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~ICE1712_EWX2496_SERIAL_CLOCK);
74 	return bit;
75 }
76 
77 static void ewx_i2c_start(struct snd_i2c_bus *bus)
78 {
79 	struct snd_ice1712 *ice = bus->private_data;
80 	unsigned char mask;
81 
82 	snd_ice1712_save_gpio_status(ice);
83 	/* set RW high */
84 	mask = ICE1712_EWX2496_RW;
85 	switch (ice->eeprom.subvendor) {
86 	case ICE1712_SUBDEVICE_EWX2496:
87 		mask |= ICE1712_EWX2496_AK4524_CS; /* CS high also */
88 		break;
89 	case ICE1712_SUBDEVICE_DMX6FIRE:
90 		mask |= ICE1712_6FIRE_AK4524_CS_MASK; /* CS high also */
91 		break;
92 	}
93 	snd_ice1712_gpio_write_bits(ice, mask, mask);
94 }
95 
96 static void ewx_i2c_stop(struct snd_i2c_bus *bus)
97 {
98 	struct snd_ice1712 *ice = bus->private_data;
99 	snd_ice1712_restore_gpio_status(ice);
100 }
101 
102 static void ewx_i2c_direction(struct snd_i2c_bus *bus, int clock, int data)
103 {
104 	struct snd_ice1712 *ice = bus->private_data;
105 	unsigned char mask = 0;
106 
107 	if (clock)
108 		mask |= ICE1712_EWX2496_SERIAL_CLOCK; /* write SCL */
109 	if (data)
110 		mask |= ICE1712_EWX2496_SERIAL_DATA; /* write SDA */
111 	ice->gpio.direction &= ~(ICE1712_EWX2496_SERIAL_CLOCK|ICE1712_EWX2496_SERIAL_DATA);
112 	ice->gpio.direction |= mask;
113 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION, ice->gpio.direction);
114 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~mask);
115 }
116 
117 static struct snd_i2c_bit_ops snd_ice1712_ewx_cs8427_bit_ops = {
118 	.start = ewx_i2c_start,
119 	.stop = ewx_i2c_stop,
120 	.direction = ewx_i2c_direction,
121 	.setlines = ewx_i2c_setlines,
122 	.getclock = ewx_i2c_getclock,
123 	.getdata = ewx_i2c_getdata,
124 };
125 
126 
127 /*
128  * AK4524 access
129  */
130 
131 /* AK4524 chip select; address 0x48 bit 0-3 */
132 static int snd_ice1712_ews88mt_chip_select(struct snd_ice1712 *ice, int chip_mask)
133 {
134 	struct ews_spec *spec = ice->spec;
135 	unsigned char data, ndata;
136 
137 	if (snd_BUG_ON(chip_mask < 0 || chip_mask > 0x0f))
138 		return -EINVAL;
139 	snd_i2c_lock(ice->i2c);
140 	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF2], &data, 1) != 1)
141 		goto __error;
142 	ndata = (data & 0xf0) | chip_mask;
143 	if (ndata != data)
144 		if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_PCF2], &ndata, 1)
145 		    != 1)
146 			goto __error;
147 	snd_i2c_unlock(ice->i2c);
148 	return 0;
149 
150      __error:
151 	snd_i2c_unlock(ice->i2c);
152 	dev_err(ice->card->dev,
153 		"AK4524 chip select failed, check cable to the front module\n");
154 	return -EIO;
155 }
156 
157 /* start callback for EWS88MT, needs to select a certain chip mask */
158 static void ews88mt_ak4524_lock(struct snd_akm4xxx *ak, int chip)
159 {
160 	struct snd_ice1712 *ice = ak->private_data[0];
161 	unsigned char tmp;
162 	/* assert AK4524 CS */
163 	if (snd_ice1712_ews88mt_chip_select(ice, ~(1 << chip) & 0x0f) < 0)
164 		dev_err(ice->card->dev, "fatal error (ews88mt chip select)\n");
165 	snd_ice1712_save_gpio_status(ice);
166 	tmp = ICE1712_EWS88_SERIAL_DATA |
167 		ICE1712_EWS88_SERIAL_CLOCK |
168 		ICE1712_EWS88_RW;
169 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION,
170 			  ice->gpio.direction | tmp);
171 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
172 }
173 
174 /* stop callback for EWS88MT, needs to deselect chip mask */
175 static void ews88mt_ak4524_unlock(struct snd_akm4xxx *ak, int chip)
176 {
177 	struct snd_ice1712 *ice = ak->private_data[0];
178 	snd_ice1712_restore_gpio_status(ice);
179 	udelay(1);
180 	snd_ice1712_ews88mt_chip_select(ice, 0x0f);
181 }
182 
183 /* start callback for EWX24/96 */
184 static void ewx2496_ak4524_lock(struct snd_akm4xxx *ak, int chip)
185 {
186 	struct snd_ice1712 *ice = ak->private_data[0];
187 	unsigned char tmp;
188 	snd_ice1712_save_gpio_status(ice);
189 	tmp =  ICE1712_EWX2496_SERIAL_DATA |
190 		ICE1712_EWX2496_SERIAL_CLOCK |
191 		ICE1712_EWX2496_AK4524_CS |
192 		ICE1712_EWX2496_RW;
193 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION,
194 			  ice->gpio.direction | tmp);
195 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
196 }
197 
198 /* start callback for DMX 6fire */
199 static void dmx6fire_ak4524_lock(struct snd_akm4xxx *ak, int chip)
200 {
201 	struct snd_ak4xxx_private *priv = (void *)ak->private_value[0];
202 	struct snd_ice1712 *ice = ak->private_data[0];
203 	unsigned char tmp;
204 	snd_ice1712_save_gpio_status(ice);
205 	tmp = priv->cs_mask = priv->cs_addr = (1 << chip) & ICE1712_6FIRE_AK4524_CS_MASK;
206 	tmp |= ICE1712_6FIRE_SERIAL_DATA |
207 		ICE1712_6FIRE_SERIAL_CLOCK |
208 		ICE1712_6FIRE_RW;
209 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION,
210 			  ice->gpio.direction | tmp);
211 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
212 }
213 
214 /*
215  * CS8404 interface on EWS88MT/D
216  */
217 
218 static void snd_ice1712_ews_cs8404_spdif_write(struct snd_ice1712 *ice, unsigned char bits)
219 {
220 	struct ews_spec *spec = ice->spec;
221 	unsigned char bytes[2];
222 
223 	snd_i2c_lock(ice->i2c);
224 	switch (ice->eeprom.subvendor) {
225 	case ICE1712_SUBDEVICE_EWS88MT:
226 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
227 	case ICE1712_SUBDEVICE_PHASE88:
228 	case ICE1712_SUBDEVICE_TS88:
229 		if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_CS8404], &bits, 1)
230 		    != 1)
231 			goto _error;
232 		break;
233 	case ICE1712_SUBDEVICE_EWS88D:
234 		if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_88D], bytes, 2)
235 		    != 2)
236 			goto _error;
237 		if (bits != bytes[1]) {
238 			bytes[1] = bits;
239 			if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_88D],
240 					      bytes, 2) != 2)
241 				goto _error;
242 		}
243 		break;
244 	}
245  _error:
246 	snd_i2c_unlock(ice->i2c);
247 }
248 
249 /*
250  */
251 
252 static void ews88_spdif_default_get(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
253 {
254 	snd_cs8404_decode_spdif_bits(&ucontrol->value.iec958, ice->spdif.cs8403_bits);
255 }
256 
257 static int ews88_spdif_default_put(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
258 {
259 	unsigned int val;
260 	int change;
261 
262 	val = snd_cs8404_encode_spdif_bits(&ucontrol->value.iec958);
263 	scoped_guard(spinlock_irq, &ice->reg_lock) {
264 		change = ice->spdif.cs8403_bits != val;
265 		ice->spdif.cs8403_bits = val;
266 		if (!change || ice->playback_pro_substream)
267 			return change;
268 	}
269 	snd_ice1712_ews_cs8404_spdif_write(ice, val);
270 	return change;
271 }
272 
273 static void ews88_spdif_stream_get(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
274 {
275 	snd_cs8404_decode_spdif_bits(&ucontrol->value.iec958, ice->spdif.cs8403_stream_bits);
276 }
277 
278 static int ews88_spdif_stream_put(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
279 {
280 	unsigned int val;
281 	int change;
282 
283 	val = snd_cs8404_encode_spdif_bits(&ucontrol->value.iec958);
284 	scoped_guard(spinlock_irq, &ice->reg_lock) {
285 		change = ice->spdif.cs8403_stream_bits != val;
286 		ice->spdif.cs8403_stream_bits = val;
287 		if (!change || ice->playback_pro_substream)
288 			return change;
289 	}
290 	snd_ice1712_ews_cs8404_spdif_write(ice, val);
291 	return change;
292 }
293 
294 
295 /* open callback */
296 static void ews88_open_spdif(struct snd_ice1712 *ice, struct snd_pcm_substream *substream)
297 {
298 	ice->spdif.cs8403_stream_bits = ice->spdif.cs8403_bits;
299 }
300 
301 /* set up SPDIF for EWS88MT / EWS88D */
302 static void ews88_setup_spdif(struct snd_ice1712 *ice, int rate)
303 {
304 	unsigned char tmp;
305 	int change;
306 
307 	scoped_guard(spinlock_irqsave, &ice->reg_lock) {
308 		tmp = ice->spdif.cs8403_stream_bits;
309 		if (tmp & 0x10)		/* consumer */
310 			tmp &= (tmp & 0x01) ? ~0x06 : ~0x60;
311 		switch (rate) {
312 		case 32000: tmp |= (tmp & 0x01) ? 0x02 : 0x00; break;
313 		case 44100: tmp |= (tmp & 0x01) ? 0x06 : 0x40; break;
314 		case 48000: tmp |= (tmp & 0x01) ? 0x04 : 0x20; break;
315 		default: tmp |= (tmp & 0x01) ? 0x06 : 0x40; break;
316 		}
317 		change = ice->spdif.cs8403_stream_bits != tmp;
318 		ice->spdif.cs8403_stream_bits = tmp;
319 	}
320 	if (change)
321 		snd_ctl_notify(ice->card, SNDRV_CTL_EVENT_MASK_VALUE, &ice->spdif.stream_ctl->id);
322 	snd_ice1712_ews_cs8404_spdif_write(ice, tmp);
323 }
324 
325 
326 /*
327  */
328 static const struct snd_akm4xxx akm_ews88mt = {
329 	.num_adcs = 8,
330 	.num_dacs = 8,
331 	.type = SND_AK4524,
332 	.ops = {
333 		.lock = ews88mt_ak4524_lock,
334 		.unlock = ews88mt_ak4524_unlock
335 	}
336 };
337 
338 static const struct snd_ak4xxx_private akm_ews88mt_priv = {
339 	.caddr = 2,
340 	.cif = 1, /* CIF high */
341 	.data_mask = ICE1712_EWS88_SERIAL_DATA,
342 	.clk_mask = ICE1712_EWS88_SERIAL_CLOCK,
343 	.cs_mask = 0,
344 	.cs_addr = 0,
345 	.cs_none = 0, /* no chip select on gpio */
346 	.add_flags = ICE1712_EWS88_RW, /* set rw bit high */
347 	.mask_flags = 0,
348 };
349 
350 static const struct snd_akm4xxx akm_ewx2496 = {
351 	.num_adcs = 2,
352 	.num_dacs = 2,
353 	.type = SND_AK4524,
354 	.ops = {
355 		.lock = ewx2496_ak4524_lock
356 	}
357 };
358 
359 static const struct snd_ak4xxx_private akm_ewx2496_priv = {
360 	.caddr = 2,
361 	.cif = 1, /* CIF high */
362 	.data_mask = ICE1712_EWS88_SERIAL_DATA,
363 	.clk_mask = ICE1712_EWS88_SERIAL_CLOCK,
364 	.cs_mask = ICE1712_EWX2496_AK4524_CS,
365 	.cs_addr = ICE1712_EWX2496_AK4524_CS,
366 	.cs_none = 0,
367 	.add_flags = ICE1712_EWS88_RW, /* set rw bit high */
368 	.mask_flags = 0,
369 };
370 
371 static const struct snd_akm4xxx akm_6fire = {
372 	.num_adcs = 6,
373 	.num_dacs = 6,
374 	.type = SND_AK4524,
375 	.ops = {
376 		.lock = dmx6fire_ak4524_lock
377 	}
378 };
379 
380 static const struct snd_ak4xxx_private akm_6fire_priv = {
381 	.caddr = 2,
382 	.cif = 1, /* CIF high */
383 	.data_mask = ICE1712_6FIRE_SERIAL_DATA,
384 	.clk_mask = ICE1712_6FIRE_SERIAL_CLOCK,
385 	.cs_mask = 0,
386 	.cs_addr = 0, /* set later */
387 	.cs_none = 0,
388 	.add_flags = ICE1712_6FIRE_RW, /* set rw bit high */
389 	.mask_flags = 0,
390 };
391 
392 /*
393  * initialize the chip
394  */
395 
396 /* 6fire specific */
397 #define PCF9554_REG_INPUT      0
398 #define PCF9554_REG_OUTPUT     1
399 #define PCF9554_REG_POLARITY   2
400 #define PCF9554_REG_CONFIG     3
401 
402 static int snd_ice1712_6fire_write_pca(struct snd_ice1712 *ice, unsigned char reg, unsigned char data);
403 
404 static int snd_ice1712_ews_init(struct snd_ice1712 *ice)
405 {
406 	int err;
407 	struct snd_akm4xxx *ak;
408 	struct ews_spec *spec;
409 
410 	/* set the analog DACs */
411 	switch (ice->eeprom.subvendor) {
412 	case ICE1712_SUBDEVICE_EWX2496:
413 		ice->num_total_dacs = 2;
414 		ice->num_total_adcs = 2;
415 		break;
416 	case ICE1712_SUBDEVICE_EWS88MT:
417 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
418 	case ICE1712_SUBDEVICE_PHASE88:
419 	case ICE1712_SUBDEVICE_TS88:
420 		ice->num_total_dacs = 8;
421 		ice->num_total_adcs = 8;
422 		break;
423 	case ICE1712_SUBDEVICE_EWS88D:
424 		/* Note: not analog but ADAT I/O */
425 		ice->num_total_dacs = 8;
426 		ice->num_total_adcs = 8;
427 		break;
428 	case ICE1712_SUBDEVICE_DMX6FIRE:
429 		ice->num_total_dacs = 6;
430 		ice->num_total_adcs = 6;
431 		break;
432 	}
433 
434 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
435 	if (!spec)
436 		return -ENOMEM;
437 	ice->spec = spec;
438 
439 	/* create i2c */
440 	err = snd_i2c_bus_create(ice->card, "ICE1712 GPIO 1", NULL, &ice->i2c);
441 	if (err < 0) {
442 		dev_err(ice->card->dev, "unable to create I2C bus\n");
443 		return err;
444 	}
445 	ice->i2c->private_data = ice;
446 	ice->i2c->hw_ops.bit = &snd_ice1712_ewx_cs8427_bit_ops;
447 
448 	/* create i2c devices */
449 	switch (ice->eeprom.subvendor) {
450 	case ICE1712_SUBDEVICE_DMX6FIRE:
451 		err = snd_i2c_device_create(ice->i2c, "PCF9554",
452 					    ICE1712_6FIRE_PCF9554_ADDR,
453 					    &spec->i2cdevs[EWS_I2C_6FIRE]);
454 		if (err < 0) {
455 			dev_err(ice->card->dev,
456 				"PCF9554 initialization failed\n");
457 			return err;
458 		}
459 		snd_ice1712_6fire_write_pca(ice, PCF9554_REG_CONFIG, 0x80);
460 		break;
461 	case ICE1712_SUBDEVICE_EWS88MT:
462 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
463 	case ICE1712_SUBDEVICE_PHASE88:
464 	case ICE1712_SUBDEVICE_TS88:
465 
466 		err = snd_i2c_device_create(ice->i2c, "CS8404",
467 					    ICE1712_EWS88MT_CS8404_ADDR,
468 					    &spec->i2cdevs[EWS_I2C_CS8404]);
469 		if (err < 0)
470 			return err;
471 		err = snd_i2c_device_create(ice->i2c, "PCF8574 (1st)",
472 					    ICE1712_EWS88MT_INPUT_ADDR,
473 					    &spec->i2cdevs[EWS_I2C_PCF1]);
474 		if (err < 0)
475 			return err;
476 		err = snd_i2c_device_create(ice->i2c, "PCF8574 (2nd)",
477 					    ICE1712_EWS88MT_OUTPUT_ADDR,
478 					    &spec->i2cdevs[EWS_I2C_PCF2]);
479 		if (err < 0)
480 			return err;
481 		/* Check if the front module is connected */
482 		err = snd_ice1712_ews88mt_chip_select(ice, 0x0f);
483 		if (err < 0)
484 			return err;
485 		break;
486 	case ICE1712_SUBDEVICE_EWS88D:
487 		err = snd_i2c_device_create(ice->i2c, "PCF8575",
488 					    ICE1712_EWS88D_PCF_ADDR,
489 					    &spec->i2cdevs[EWS_I2C_88D]);
490 		if (err < 0)
491 			return err;
492 		break;
493 	}
494 
495 	/* set up SPDIF interface */
496 	switch (ice->eeprom.subvendor) {
497 	case ICE1712_SUBDEVICE_EWX2496:
498 		err = snd_ice1712_init_cs8427(ice, CS8427_BASE_ADDR);
499 		if (err < 0)
500 			return err;
501 		snd_cs8427_reg_write(ice->cs8427, CS8427_REG_RECVERRMASK, CS8427_UNLOCK | CS8427_CONF | CS8427_BIP | CS8427_PAR);
502 		break;
503 	case ICE1712_SUBDEVICE_DMX6FIRE:
504 		err = snd_ice1712_init_cs8427(ice, ICE1712_6FIRE_CS8427_ADDR);
505 		if (err < 0)
506 			return err;
507 		snd_cs8427_reg_write(ice->cs8427, CS8427_REG_RECVERRMASK, CS8427_UNLOCK | CS8427_CONF | CS8427_BIP | CS8427_PAR);
508 		break;
509 	case ICE1712_SUBDEVICE_EWS88MT:
510 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
511 	case ICE1712_SUBDEVICE_PHASE88:
512 	case ICE1712_SUBDEVICE_TS88:
513 	case ICE1712_SUBDEVICE_EWS88D:
514 		/* set up CS8404 */
515 		ice->spdif.ops.open = ews88_open_spdif;
516 		ice->spdif.ops.setup_rate = ews88_setup_spdif;
517 		ice->spdif.ops.default_get = ews88_spdif_default_get;
518 		ice->spdif.ops.default_put = ews88_spdif_default_put;
519 		ice->spdif.ops.stream_get = ews88_spdif_stream_get;
520 		ice->spdif.ops.stream_put = ews88_spdif_stream_put;
521 		/* Set spdif defaults */
522 		snd_ice1712_ews_cs8404_spdif_write(ice, ice->spdif.cs8403_bits);
523 		break;
524 	}
525 
526 	/* no analog? */
527 	switch (ice->eeprom.subvendor) {
528 	case ICE1712_SUBDEVICE_EWS88D:
529 		return 0;
530 	}
531 
532 	/* analog section */
533 	ak = ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
534 	if (! ak)
535 		return -ENOMEM;
536 	ice->akm_codecs = 1;
537 
538 	switch (ice->eeprom.subvendor) {
539 	case ICE1712_SUBDEVICE_EWS88MT:
540 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
541 	case ICE1712_SUBDEVICE_PHASE88:
542 	case ICE1712_SUBDEVICE_TS88:
543 		err = snd_ice1712_akm4xxx_init(ak, &akm_ews88mt, &akm_ews88mt_priv, ice);
544 		break;
545 	case ICE1712_SUBDEVICE_EWX2496:
546 		err = snd_ice1712_akm4xxx_init(ak, &akm_ewx2496, &akm_ewx2496_priv, ice);
547 		break;
548 	case ICE1712_SUBDEVICE_DMX6FIRE:
549 		err = snd_ice1712_akm4xxx_init(ak, &akm_6fire, &akm_6fire_priv, ice);
550 		break;
551 	default:
552 		err = 0;
553 	}
554 
555 	return err;
556 }
557 
558 /*
559  * EWX 24/96 specific controls
560  */
561 
562 /* i/o sensitivity - this callback is shared among other devices, too */
563 static int snd_ice1712_ewx_io_sense_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo){
564 
565 	static const char * const texts[2] = {
566 		"+4dBu", "-10dBV",
567 	};
568 	return snd_ctl_enum_info(uinfo, 1, 2, texts);
569 }
570 
571 static int snd_ice1712_ewx_io_sense_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
572 {
573 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
574 	unsigned char mask = kcontrol->private_value & 0xff;
575 
576 	snd_ice1712_save_gpio_status(ice);
577 	ucontrol->value.enumerated.item[0] = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & mask ? 1 : 0;
578 	snd_ice1712_restore_gpio_status(ice);
579 	return 0;
580 }
581 
582 static int snd_ice1712_ewx_io_sense_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
583 {
584 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
585 	unsigned char mask = kcontrol->private_value & 0xff;
586 	int val, nval;
587 
588 	if (kcontrol->private_value & (1 << 31))
589 		return -EPERM;
590 	nval = ucontrol->value.enumerated.item[0] ? mask : 0;
591 	snd_ice1712_save_gpio_status(ice);
592 	val = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA);
593 	nval |= val & ~mask;
594 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, nval);
595 	snd_ice1712_restore_gpio_status(ice);
596 	return val != nval;
597 }
598 
599 static const struct snd_kcontrol_new snd_ice1712_ewx2496_controls[] = {
600 	{
601 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
602 		.name = "Input Sensitivity Switch",
603 		.info = snd_ice1712_ewx_io_sense_info,
604 		.get = snd_ice1712_ewx_io_sense_get,
605 		.put = snd_ice1712_ewx_io_sense_put,
606 		.private_value = ICE1712_EWX2496_AIN_SEL,
607 	},
608 	{
609 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
610 		.name = "Output Sensitivity Switch",
611 		.info = snd_ice1712_ewx_io_sense_info,
612 		.get = snd_ice1712_ewx_io_sense_get,
613 		.put = snd_ice1712_ewx_io_sense_put,
614 		.private_value = ICE1712_EWX2496_AOUT_SEL,
615 	},
616 };
617 
618 
619 /*
620  * EWS88MT specific controls
621  */
622 /* analog output sensitivity;; address 0x48 bit 6 */
623 static int snd_ice1712_ews88mt_output_sense_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
624 {
625 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
626 	struct ews_spec *spec = ice->spec;
627 	unsigned char data;
628 
629 	snd_i2c_lock(ice->i2c);
630 	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF2], &data, 1) != 1) {
631 		snd_i2c_unlock(ice->i2c);
632 		return -EIO;
633 	}
634 	snd_i2c_unlock(ice->i2c);
635 	ucontrol->value.enumerated.item[0] = data & ICE1712_EWS88MT_OUTPUT_SENSE ? 1 : 0; /* high = -10dBV, low = +4dBu */
636 	return 0;
637 }
638 
639 /* analog output sensitivity;; address 0x48 bit 6 */
640 static int snd_ice1712_ews88mt_output_sense_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
641 {
642 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
643 	struct ews_spec *spec = ice->spec;
644 	unsigned char data, ndata;
645 
646 	snd_i2c_lock(ice->i2c);
647 	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF2], &data, 1) != 1) {
648 		snd_i2c_unlock(ice->i2c);
649 		return -EIO;
650 	}
651 	ndata = (data & ~ICE1712_EWS88MT_OUTPUT_SENSE) | (ucontrol->value.enumerated.item[0] ? ICE1712_EWS88MT_OUTPUT_SENSE : 0);
652 	if (ndata != data && snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_PCF2],
653 					       &ndata, 1) != 1) {
654 		snd_i2c_unlock(ice->i2c);
655 		return -EIO;
656 	}
657 	snd_i2c_unlock(ice->i2c);
658 	return ndata != data;
659 }
660 
661 /* analog input sensitivity; address 0x46 */
662 static int snd_ice1712_ews88mt_input_sense_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
663 {
664 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
665 	struct ews_spec *spec = ice->spec;
666 	int channel = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
667 	unsigned char data;
668 
669 	if (snd_BUG_ON(channel < 0 || channel > 7))
670 		return 0;
671 	snd_i2c_lock(ice->i2c);
672 	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF1], &data, 1) != 1) {
673 		snd_i2c_unlock(ice->i2c);
674 		return -EIO;
675 	}
676 	/* reversed; high = +4dBu, low = -10dBV */
677 	ucontrol->value.enumerated.item[0] = data & (1 << channel) ? 0 : 1;
678 	snd_i2c_unlock(ice->i2c);
679 	return 0;
680 }
681 
682 /* analog output sensitivity; address 0x46 */
683 static int snd_ice1712_ews88mt_input_sense_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
684 {
685 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
686 	struct ews_spec *spec = ice->spec;
687 	int channel = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
688 	unsigned char data, ndata;
689 
690 	if (snd_BUG_ON(channel < 0 || channel > 7))
691 		return 0;
692 	snd_i2c_lock(ice->i2c);
693 	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF1], &data, 1) != 1) {
694 		snd_i2c_unlock(ice->i2c);
695 		return -EIO;
696 	}
697 	ndata = (data & ~(1 << channel)) | (ucontrol->value.enumerated.item[0] ? 0 : (1 << channel));
698 	if (ndata != data && snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_PCF1],
699 					       &ndata, 1) != 1) {
700 		snd_i2c_unlock(ice->i2c);
701 		return -EIO;
702 	}
703 	snd_i2c_unlock(ice->i2c);
704 	return ndata != data;
705 }
706 
707 static const struct snd_kcontrol_new snd_ice1712_ews88mt_input_sense = {
708 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
709 	.name = "Input Sensitivity Switch",
710 	.info = snd_ice1712_ewx_io_sense_info,
711 	.get = snd_ice1712_ews88mt_input_sense_get,
712 	.put = snd_ice1712_ews88mt_input_sense_put,
713 	.count = 8,
714 };
715 
716 static const struct snd_kcontrol_new snd_ice1712_ews88mt_output_sense = {
717 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
718 	.name = "Output Sensitivity Switch",
719 	.info = snd_ice1712_ewx_io_sense_info,
720 	.get = snd_ice1712_ews88mt_output_sense_get,
721 	.put = snd_ice1712_ews88mt_output_sense_put,
722 };
723 
724 
725 /*
726  * EWS88D specific controls
727  */
728 
729 #define snd_ice1712_ews88d_control_info		snd_ctl_boolean_mono_info
730 
731 static int snd_ice1712_ews88d_control_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
732 {
733 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
734 	struct ews_spec *spec = ice->spec;
735 	int shift = kcontrol->private_value & 0xff;
736 	int invert = (kcontrol->private_value >> 8) & 1;
737 	unsigned char data[2];
738 
739 	snd_i2c_lock(ice->i2c);
740 	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_88D], data, 2) != 2) {
741 		snd_i2c_unlock(ice->i2c);
742 		return -EIO;
743 	}
744 	snd_i2c_unlock(ice->i2c);
745 	data[0] = (data[shift >> 3] >> (shift & 7)) & 0x01;
746 	if (invert)
747 		data[0] ^= 0x01;
748 	ucontrol->value.integer.value[0] = data[0];
749 	return 0;
750 }
751 
752 static int snd_ice1712_ews88d_control_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
753 {
754 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
755 	struct ews_spec *spec = ice->spec;
756 	int shift = kcontrol->private_value & 0xff;
757 	int invert = (kcontrol->private_value >> 8) & 1;
758 	unsigned char data[2], ndata[2];
759 	int change;
760 
761 	snd_i2c_lock(ice->i2c);
762 	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_88D], data, 2) != 2) {
763 		snd_i2c_unlock(ice->i2c);
764 		return -EIO;
765 	}
766 	ndata[shift >> 3] = data[shift >> 3] & ~(1 << (shift & 7));
767 	if (invert) {
768 		if (! ucontrol->value.integer.value[0])
769 			ndata[shift >> 3] |= (1 << (shift & 7));
770 	} else {
771 		if (ucontrol->value.integer.value[0])
772 			ndata[shift >> 3] |= (1 << (shift & 7));
773 	}
774 	change = (data[shift >> 3] != ndata[shift >> 3]);
775 	if (change &&
776 	    snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_88D], data, 2) != 2) {
777 		snd_i2c_unlock(ice->i2c);
778 		return -EIO;
779 	}
780 	snd_i2c_unlock(ice->i2c);
781 	return change;
782 }
783 
784 #define EWS88D_CONTROL(xiface, xname, xshift, xinvert, xaccess) \
785 { .iface = xiface,\
786   .name = xname,\
787   .access = xaccess,\
788   .info = snd_ice1712_ews88d_control_info,\
789   .get = snd_ice1712_ews88d_control_get,\
790   .put = snd_ice1712_ews88d_control_put,\
791   .private_value = xshift | (xinvert << 8),\
792 }
793 
794 static const struct snd_kcontrol_new snd_ice1712_ews88d_controls[] = {
795 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "IEC958 Input Optical", 0, 1, 0), /* inverted */
796 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "ADAT Output Optical", 1, 0, 0),
797 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "ADAT External Master Clock", 2, 0, 0),
798 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "Enable ADAT", 3, 0, 0),
799 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "ADAT Through", 4, 1, 0),
800 };
801 
802 
803 /*
804  * DMX 6Fire specific controls
805  */
806 
807 static int snd_ice1712_6fire_read_pca(struct snd_ice1712 *ice, unsigned char reg)
808 {
809 	unsigned char byte;
810 	struct ews_spec *spec = ice->spec;
811 
812 	snd_i2c_lock(ice->i2c);
813 	byte = reg;
814 	if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_6FIRE], &byte, 1) != 1) {
815 		snd_i2c_unlock(ice->i2c);
816 		dev_err(ice->card->dev, "cannot send pca\n");
817 		return -EIO;
818 	}
819 
820 	byte = 0;
821 	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_6FIRE], &byte, 1) != 1) {
822 		snd_i2c_unlock(ice->i2c);
823 		dev_err(ice->card->dev, "cannot read pca\n");
824 		return -EIO;
825 	}
826 	snd_i2c_unlock(ice->i2c);
827 	return byte;
828 }
829 
830 static int snd_ice1712_6fire_write_pca(struct snd_ice1712 *ice, unsigned char reg, unsigned char data)
831 {
832 	unsigned char bytes[2];
833 	struct ews_spec *spec = ice->spec;
834 
835 	snd_i2c_lock(ice->i2c);
836 	bytes[0] = reg;
837 	bytes[1] = data;
838 	if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_6FIRE], bytes, 2) != 2) {
839 		snd_i2c_unlock(ice->i2c);
840 		return -EIO;
841 	}
842 	snd_i2c_unlock(ice->i2c);
843 	return 0;
844 }
845 
846 #define snd_ice1712_6fire_control_info		snd_ctl_boolean_mono_info
847 
848 static int snd_ice1712_6fire_control_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
849 {
850 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
851 	int shift = kcontrol->private_value & 0xff;
852 	int invert = (kcontrol->private_value >> 8) & 1;
853 	int data;
854 
855 	data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT);
856 	if (data < 0)
857 		return data;
858 	data = (data >> shift) & 1;
859 	if (invert)
860 		data ^= 1;
861 	ucontrol->value.integer.value[0] = data;
862 	return 0;
863 }
864 
865 static int snd_ice1712_6fire_control_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
866 {
867 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
868 	int shift = kcontrol->private_value & 0xff;
869 	int invert = (kcontrol->private_value >> 8) & 1;
870 	int data, ndata;
871 
872 	data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT);
873 	if (data < 0)
874 		return data;
875 	ndata = data & ~(1 << shift);
876 	if (ucontrol->value.integer.value[0])
877 		ndata |= (1 << shift);
878 	if (invert)
879 		ndata ^= (1 << shift);
880 	if (data != ndata) {
881 		snd_ice1712_6fire_write_pca(ice, PCF9554_REG_OUTPUT, (unsigned char)ndata);
882 		return 1;
883 	}
884 	return 0;
885 }
886 
887 static int snd_ice1712_6fire_select_input_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
888 {
889 	static const char * const texts[4] = {
890 		"Internal", "Front Input", "Rear Input", "Wave Table"
891 	};
892 	return snd_ctl_enum_info(uinfo, 1, 4, texts);
893 }
894 
895 static int snd_ice1712_6fire_select_input_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
896 {
897 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
898 	int data;
899 
900 	data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT);
901 	if (data < 0)
902 		return data;
903 	ucontrol->value.integer.value[0] = data & 3;
904 	return 0;
905 }
906 
907 static int snd_ice1712_6fire_select_input_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
908 {
909 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
910 	int data, ndata;
911 
912 	data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT);
913 	if (data < 0)
914 		return data;
915 	ndata = data & ~3;
916 	ndata |= (ucontrol->value.integer.value[0] & 3);
917 	if (data != ndata) {
918 		snd_ice1712_6fire_write_pca(ice, PCF9554_REG_OUTPUT, (unsigned char)ndata);
919 		return 1;
920 	}
921 	return 0;
922 }
923 
924 
925 #define DMX6FIRE_CONTROL(xname, xshift, xinvert) \
926 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
927   .name = xname,\
928   .info = snd_ice1712_6fire_control_info,\
929   .get = snd_ice1712_6fire_control_get,\
930   .put = snd_ice1712_6fire_control_put,\
931   .private_value = xshift | (xinvert << 8),\
932 }
933 
934 static const struct snd_kcontrol_new snd_ice1712_6fire_controls[] = {
935 	{
936 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
937 		.name = "Analog Input Select",
938 		.info = snd_ice1712_6fire_select_input_info,
939 		.get = snd_ice1712_6fire_select_input_get,
940 		.put = snd_ice1712_6fire_select_input_put,
941 	},
942 	DMX6FIRE_CONTROL("Front Digital Input Switch", 2, 1),
943 	// DMX6FIRE_CONTROL("Master Clock Select", 3, 0),
944 	DMX6FIRE_CONTROL("Optical Digital Input Switch", 4, 0),
945 	DMX6FIRE_CONTROL("Phono Analog Input Switch", 5, 0),
946 	DMX6FIRE_CONTROL("Breakbox LED", 6, 0),
947 };
948 
949 
950 static int snd_ice1712_ews_add_controls(struct snd_ice1712 *ice)
951 {
952 	unsigned int idx;
953 	int err;
954 
955 	/* all terratec cards have spdif, but cs8427 module builds it's own controls */
956 	if (ice->cs8427 == NULL) {
957 		err = snd_ice1712_spdif_build_controls(ice);
958 		if (err < 0)
959 			return err;
960 	}
961 
962 	/* ak4524 controls */
963 	switch (ice->eeprom.subvendor) {
964 	case ICE1712_SUBDEVICE_EWX2496:
965 	case ICE1712_SUBDEVICE_EWS88MT:
966 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
967 	case ICE1712_SUBDEVICE_PHASE88:
968 	case ICE1712_SUBDEVICE_TS88:
969 	case ICE1712_SUBDEVICE_DMX6FIRE:
970 		err = snd_ice1712_akm4xxx_build_controls(ice);
971 		if (err < 0)
972 			return err;
973 		break;
974 	}
975 
976 	/* card specific controls */
977 	switch (ice->eeprom.subvendor) {
978 	case ICE1712_SUBDEVICE_EWX2496:
979 		for (idx = 0; idx < ARRAY_SIZE(snd_ice1712_ewx2496_controls); idx++) {
980 			err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ewx2496_controls[idx], ice));
981 			if (err < 0)
982 				return err;
983 		}
984 		break;
985 	case ICE1712_SUBDEVICE_EWS88MT:
986 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
987 	case ICE1712_SUBDEVICE_PHASE88:
988 	case ICE1712_SUBDEVICE_TS88:
989 		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ews88mt_input_sense, ice));
990 		if (err < 0)
991 			return err;
992 		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ews88mt_output_sense, ice));
993 		if (err < 0)
994 			return err;
995 		break;
996 	case ICE1712_SUBDEVICE_EWS88D:
997 		for (idx = 0; idx < ARRAY_SIZE(snd_ice1712_ews88d_controls); idx++) {
998 			err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ews88d_controls[idx], ice));
999 			if (err < 0)
1000 				return err;
1001 		}
1002 		break;
1003 	case ICE1712_SUBDEVICE_DMX6FIRE:
1004 		for (idx = 0; idx < ARRAY_SIZE(snd_ice1712_6fire_controls); idx++) {
1005 			err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_6fire_controls[idx], ice));
1006 			if (err < 0)
1007 				return err;
1008 		}
1009 		break;
1010 	}
1011 	return 0;
1012 }
1013 
1014 
1015 /* entry point */
1016 struct snd_ice1712_card_info snd_ice1712_ews_cards[] = {
1017 	{
1018 		.subvendor = ICE1712_SUBDEVICE_EWX2496,
1019 		.name = "TerraTec EWX24/96",
1020 		.model = "ewx2496",
1021 		.chip_init = snd_ice1712_ews_init,
1022 		.build_controls = snd_ice1712_ews_add_controls,
1023 	},
1024 	{
1025 		.subvendor = ICE1712_SUBDEVICE_EWS88MT,
1026 		.name = "TerraTec EWS88MT",
1027 		.model = "ews88mt",
1028 		.chip_init = snd_ice1712_ews_init,
1029 		.build_controls = snd_ice1712_ews_add_controls,
1030 	},
1031 	{
1032 		.subvendor = ICE1712_SUBDEVICE_EWS88MT_NEW,
1033 		.name = "TerraTec EWS88MT",
1034 		.model = "ews88mt_new",
1035 		.chip_init = snd_ice1712_ews_init,
1036 		.build_controls = snd_ice1712_ews_add_controls,
1037 	},
1038 	{
1039 		.subvendor = ICE1712_SUBDEVICE_PHASE88,
1040 		.name = "TerraTec Phase88",
1041 		.model = "phase88",
1042 		.chip_init = snd_ice1712_ews_init,
1043 		.build_controls = snd_ice1712_ews_add_controls,
1044 	},
1045 	{
1046 		.subvendor = ICE1712_SUBDEVICE_TS88,
1047 		.name = "terrasoniq TS88",
1048 		.model = "phase88",
1049 		.chip_init = snd_ice1712_ews_init,
1050 		.build_controls = snd_ice1712_ews_add_controls,
1051 	},
1052 	{
1053 		.subvendor = ICE1712_SUBDEVICE_EWS88D,
1054 		.name = "TerraTec EWS88D",
1055 		.model = "ews88d",
1056 		.chip_init = snd_ice1712_ews_init,
1057 		.build_controls = snd_ice1712_ews_add_controls,
1058 	},
1059 	{
1060 		.subvendor = ICE1712_SUBDEVICE_DMX6FIRE,
1061 		.name = "TerraTec DMX6Fire",
1062 		.model = "dmx6fire",
1063 		.chip_init = snd_ice1712_ews_init,
1064 		.build_controls = snd_ice1712_ews_add_controls,
1065 		.mpu401_1_name = "MIDI-Front DMX6fire",
1066 		.mpu401_2_name = "Wavetable DMX6fire",
1067 		.mpu401_2_info_flags = MPU401_INFO_OUTPUT,
1068 	},
1069 	{ } /* terminator */
1070 };
1071