xref: /openbmc/linux/sound/pci/ice1712/pontis.c (revision b595076a)
1 /*
2  *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
3  *
4  *   Lowlevel functions for Pontis MS300
5  *
6  *	Copyright (c) 2004 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 <linux/mutex.h>
30 
31 #include <sound/core.h>
32 #include <sound/info.h>
33 #include <sound/tlv.h>
34 
35 #include "ice1712.h"
36 #include "envy24ht.h"
37 #include "pontis.h"
38 
39 /* I2C addresses */
40 #define WM_DEV		0x34
41 #define CS_DEV		0x20
42 
43 /* WM8776 registers */
44 #define WM_HP_ATTEN_L		0x00	/* headphone left attenuation */
45 #define WM_HP_ATTEN_R		0x01	/* headphone left attenuation */
46 #define WM_HP_MASTER		0x02	/* headphone master (both channels) */
47 					/* override LLR */
48 #define WM_DAC_ATTEN_L		0x03	/* digital left attenuation */
49 #define WM_DAC_ATTEN_R		0x04
50 #define WM_DAC_MASTER		0x05
51 #define WM_PHASE_SWAP		0x06	/* DAC phase swap */
52 #define WM_DAC_CTRL1		0x07
53 #define WM_DAC_MUTE		0x08
54 #define WM_DAC_CTRL2		0x09
55 #define WM_DAC_INT		0x0a
56 #define WM_ADC_INT		0x0b
57 #define WM_MASTER_CTRL		0x0c
58 #define WM_POWERDOWN		0x0d
59 #define WM_ADC_ATTEN_L		0x0e
60 #define WM_ADC_ATTEN_R		0x0f
61 #define WM_ALC_CTRL1		0x10
62 #define WM_ALC_CTRL2		0x11
63 #define WM_ALC_CTRL3		0x12
64 #define WM_NOISE_GATE		0x13
65 #define WM_LIMITER		0x14
66 #define WM_ADC_MUX		0x15
67 #define WM_OUT_MUX		0x16
68 #define WM_RESET		0x17
69 
70 /*
71  * GPIO
72  */
73 #define PONTIS_CS_CS		(1<<4)	/* CS */
74 #define PONTIS_CS_CLK		(1<<5)	/* CLK */
75 #define PONTIS_CS_RDATA		(1<<6)	/* CS8416 -> VT1720 */
76 #define PONTIS_CS_WDATA		(1<<7)	/* VT1720 -> CS8416 */
77 
78 
79 /*
80  * get the current register value of WM codec
81  */
82 static unsigned short wm_get(struct snd_ice1712 *ice, int reg)
83 {
84 	reg <<= 1;
85 	return ((unsigned short)ice->akm[0].images[reg] << 8) |
86 		ice->akm[0].images[reg + 1];
87 }
88 
89 /*
90  * set the register value of WM codec and remember it
91  */
92 static void wm_put_nocache(struct snd_ice1712 *ice, int reg, unsigned short val)
93 {
94 	unsigned short cval;
95 	cval = (reg << 9) | val;
96 	snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff);
97 }
98 
99 static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val)
100 {
101 	wm_put_nocache(ice, reg, val);
102 	reg <<= 1;
103 	ice->akm[0].images[reg] = val >> 8;
104 	ice->akm[0].images[reg + 1] = val;
105 }
106 
107 /*
108  * DAC volume attenuation mixer control (-64dB to 0dB)
109  */
110 
111 #define DAC_0dB	0xff
112 #define DAC_RES	128
113 #define DAC_MIN	(DAC_0dB - DAC_RES)
114 
115 static int wm_dac_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
116 {
117 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
118 	uinfo->count = 2;
119 	uinfo->value.integer.min = 0;	/* mute */
120 	uinfo->value.integer.max = DAC_RES;	/* 0dB, 0.5dB step */
121 	return 0;
122 }
123 
124 static int wm_dac_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
125 {
126 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
127 	unsigned short val;
128 	int i;
129 
130 	mutex_lock(&ice->gpio_mutex);
131 	for (i = 0; i < 2; i++) {
132 		val = wm_get(ice, WM_DAC_ATTEN_L + i) & 0xff;
133 		val = val > DAC_MIN ? (val - DAC_MIN) : 0;
134 		ucontrol->value.integer.value[i] = val;
135 	}
136 	mutex_unlock(&ice->gpio_mutex);
137 	return 0;
138 }
139 
140 static int wm_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
141 {
142 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
143 	unsigned short oval, nval;
144 	int i, idx, change = 0;
145 
146 	mutex_lock(&ice->gpio_mutex);
147 	for (i = 0; i < 2; i++) {
148 		nval = ucontrol->value.integer.value[i];
149 		nval = (nval ? (nval + DAC_MIN) : 0) & 0xff;
150 		idx = WM_DAC_ATTEN_L + i;
151 		oval = wm_get(ice, idx) & 0xff;
152 		if (oval != nval) {
153 			wm_put(ice, idx, nval);
154 			wm_put_nocache(ice, idx, nval | 0x100);
155 			change = 1;
156 		}
157 	}
158 	mutex_unlock(&ice->gpio_mutex);
159 	return change;
160 }
161 
162 /*
163  * ADC gain mixer control (-64dB to 0dB)
164  */
165 
166 #define ADC_0dB	0xcf
167 #define ADC_RES	128
168 #define ADC_MIN	(ADC_0dB - ADC_RES)
169 
170 static int wm_adc_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
171 {
172 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
173 	uinfo->count = 2;
174 	uinfo->value.integer.min = 0;	/* mute (-64dB) */
175 	uinfo->value.integer.max = ADC_RES;	/* 0dB, 0.5dB step */
176 	return 0;
177 }
178 
179 static int wm_adc_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
180 {
181 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
182 	unsigned short val;
183 	int i;
184 
185 	mutex_lock(&ice->gpio_mutex);
186 	for (i = 0; i < 2; i++) {
187 		val = wm_get(ice, WM_ADC_ATTEN_L + i) & 0xff;
188 		val = val > ADC_MIN ? (val - ADC_MIN) : 0;
189 		ucontrol->value.integer.value[i] = val;
190 	}
191 	mutex_unlock(&ice->gpio_mutex);
192 	return 0;
193 }
194 
195 static int wm_adc_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
196 {
197 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
198 	unsigned short ovol, nvol;
199 	int i, idx, change = 0;
200 
201 	mutex_lock(&ice->gpio_mutex);
202 	for (i = 0; i < 2; i++) {
203 		nvol = ucontrol->value.integer.value[i];
204 		nvol = nvol ? (nvol + ADC_MIN) : 0;
205 		idx  = WM_ADC_ATTEN_L + i;
206 		ovol = wm_get(ice, idx) & 0xff;
207 		if (ovol != nvol) {
208 			wm_put(ice, idx, nvol);
209 			change = 1;
210 		}
211 	}
212 	mutex_unlock(&ice->gpio_mutex);
213 	return change;
214 }
215 
216 /*
217  * ADC input mux mixer control
218  */
219 #define wm_adc_mux_info		snd_ctl_boolean_mono_info
220 
221 static int wm_adc_mux_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
222 {
223 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
224 	int bit = kcontrol->private_value;
225 
226 	mutex_lock(&ice->gpio_mutex);
227 	ucontrol->value.integer.value[0] = (wm_get(ice, WM_ADC_MUX) & (1 << bit)) ? 1 : 0;
228 	mutex_unlock(&ice->gpio_mutex);
229 	return 0;
230 }
231 
232 static int wm_adc_mux_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
233 {
234 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
235 	int bit = kcontrol->private_value;
236 	unsigned short oval, nval;
237 	int change;
238 
239 	mutex_lock(&ice->gpio_mutex);
240 	nval = oval = wm_get(ice, WM_ADC_MUX);
241 	if (ucontrol->value.integer.value[0])
242 		nval |= (1 << bit);
243 	else
244 		nval &= ~(1 << bit);
245 	change = nval != oval;
246 	if (change) {
247 		wm_put(ice, WM_ADC_MUX, nval);
248 	}
249 	mutex_unlock(&ice->gpio_mutex);
250 	return change;
251 }
252 
253 /*
254  * Analog bypass (In -> Out)
255  */
256 #define wm_bypass_info		snd_ctl_boolean_mono_info
257 
258 static int wm_bypass_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
259 {
260 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
261 
262 	mutex_lock(&ice->gpio_mutex);
263 	ucontrol->value.integer.value[0] = (wm_get(ice, WM_OUT_MUX) & 0x04) ? 1 : 0;
264 	mutex_unlock(&ice->gpio_mutex);
265 	return 0;
266 }
267 
268 static int wm_bypass_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
269 {
270 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
271 	unsigned short val, oval;
272 	int change = 0;
273 
274 	mutex_lock(&ice->gpio_mutex);
275 	val = oval = wm_get(ice, WM_OUT_MUX);
276 	if (ucontrol->value.integer.value[0])
277 		val |= 0x04;
278 	else
279 		val &= ~0x04;
280 	if (val != oval) {
281 		wm_put(ice, WM_OUT_MUX, val);
282 		change = 1;
283 	}
284 	mutex_unlock(&ice->gpio_mutex);
285 	return change;
286 }
287 
288 /*
289  * Left/Right swap
290  */
291 #define wm_chswap_info		snd_ctl_boolean_mono_info
292 
293 static int wm_chswap_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
294 {
295 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
296 
297 	mutex_lock(&ice->gpio_mutex);
298 	ucontrol->value.integer.value[0] = (wm_get(ice, WM_DAC_CTRL1) & 0xf0) != 0x90;
299 	mutex_unlock(&ice->gpio_mutex);
300 	return 0;
301 }
302 
303 static int wm_chswap_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
304 {
305 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
306 	unsigned short val, oval;
307 	int change = 0;
308 
309 	mutex_lock(&ice->gpio_mutex);
310 	oval = wm_get(ice, WM_DAC_CTRL1);
311 	val = oval & 0x0f;
312 	if (ucontrol->value.integer.value[0])
313 		val |= 0x60;
314 	else
315 		val |= 0x90;
316 	if (val != oval) {
317 		wm_put(ice, WM_DAC_CTRL1, val);
318 		wm_put_nocache(ice, WM_DAC_CTRL1, val);
319 		change = 1;
320 	}
321 	mutex_unlock(&ice->gpio_mutex);
322 	return change;
323 }
324 
325 /*
326  * write data in the SPI mode
327  */
328 static void set_gpio_bit(struct snd_ice1712 *ice, unsigned int bit, int val)
329 {
330 	unsigned int tmp = snd_ice1712_gpio_read(ice);
331 	if (val)
332 		tmp |= bit;
333 	else
334 		tmp &= ~bit;
335 	snd_ice1712_gpio_write(ice, tmp);
336 }
337 
338 static void spi_send_byte(struct snd_ice1712 *ice, unsigned char data)
339 {
340 	int i;
341 	for (i = 0; i < 8; i++) {
342 		set_gpio_bit(ice, PONTIS_CS_CLK, 0);
343 		udelay(1);
344 		set_gpio_bit(ice, PONTIS_CS_WDATA, data & 0x80);
345 		udelay(1);
346 		set_gpio_bit(ice, PONTIS_CS_CLK, 1);
347 		udelay(1);
348 		data <<= 1;
349 	}
350 }
351 
352 static unsigned int spi_read_byte(struct snd_ice1712 *ice)
353 {
354 	int i;
355 	unsigned int val = 0;
356 
357 	for (i = 0; i < 8; i++) {
358 		val <<= 1;
359 		set_gpio_bit(ice, PONTIS_CS_CLK, 0);
360 		udelay(1);
361 		if (snd_ice1712_gpio_read(ice) & PONTIS_CS_RDATA)
362 			val |= 1;
363 		udelay(1);
364 		set_gpio_bit(ice, PONTIS_CS_CLK, 1);
365 		udelay(1);
366 	}
367 	return val;
368 }
369 
370 
371 static void spi_write(struct snd_ice1712 *ice, unsigned int dev, unsigned int reg, unsigned int data)
372 {
373 	snd_ice1712_gpio_set_dir(ice, PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK);
374 	snd_ice1712_gpio_set_mask(ice, ~(PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK));
375 	set_gpio_bit(ice, PONTIS_CS_CS, 0);
376 	spi_send_byte(ice, dev & ~1); /* WRITE */
377 	spi_send_byte(ice, reg); /* MAP */
378 	spi_send_byte(ice, data); /* DATA */
379 	/* trigger */
380 	set_gpio_bit(ice, PONTIS_CS_CS, 1);
381 	udelay(1);
382 	/* restore */
383 	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
384 	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
385 }
386 
387 static unsigned int spi_read(struct snd_ice1712 *ice, unsigned int dev, unsigned int reg)
388 {
389 	unsigned int val;
390 	snd_ice1712_gpio_set_dir(ice, PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK);
391 	snd_ice1712_gpio_set_mask(ice, ~(PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK));
392 	set_gpio_bit(ice, PONTIS_CS_CS, 0);
393 	spi_send_byte(ice, dev & ~1); /* WRITE */
394 	spi_send_byte(ice, reg); /* MAP */
395 	/* trigger */
396 	set_gpio_bit(ice, PONTIS_CS_CS, 1);
397 	udelay(1);
398 	set_gpio_bit(ice, PONTIS_CS_CS, 0);
399 	spi_send_byte(ice, dev | 1); /* READ */
400 	val = spi_read_byte(ice);
401 	/* trigger */
402 	set_gpio_bit(ice, PONTIS_CS_CS, 1);
403 	udelay(1);
404 	/* restore */
405 	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
406 	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
407 	return val;
408 }
409 
410 
411 /*
412  * SPDIF input source
413  */
414 static int cs_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
415 {
416 	static const char * const texts[] = {
417 		"Coax",		/* RXP0 */
418 		"Optical",	/* RXP1 */
419 		"CD",		/* RXP2 */
420 	};
421 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
422 	uinfo->count = 1;
423 	uinfo->value.enumerated.items = 3;
424 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
425 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
426 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
427 	return 0;
428 }
429 
430 static int cs_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
431 {
432 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
433 
434 	mutex_lock(&ice->gpio_mutex);
435 	ucontrol->value.enumerated.item[0] = ice->gpio.saved[0];
436 	mutex_unlock(&ice->gpio_mutex);
437 	return 0;
438 }
439 
440 static int cs_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
441 {
442 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
443 	unsigned char val;
444 	int change = 0;
445 
446 	mutex_lock(&ice->gpio_mutex);
447 	if (ucontrol->value.enumerated.item[0] != ice->gpio.saved[0]) {
448 		ice->gpio.saved[0] = ucontrol->value.enumerated.item[0] & 3;
449 		val = 0x80 | (ice->gpio.saved[0] << 3);
450 		spi_write(ice, CS_DEV, 0x04, val);
451 		change = 1;
452 	}
453 	mutex_unlock(&ice->gpio_mutex);
454 	return change;
455 }
456 
457 
458 /*
459  * GPIO controls
460  */
461 static int pontis_gpio_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
462 {
463 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
464 	uinfo->count = 1;
465 	uinfo->value.integer.min = 0;
466 	uinfo->value.integer.max = 0xffff; /* 16bit */
467 	return 0;
468 }
469 
470 static int pontis_gpio_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
471 {
472 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
473 	mutex_lock(&ice->gpio_mutex);
474 	/* 4-7 reserved */
475 	ucontrol->value.integer.value[0] = (~ice->gpio.write_mask & 0xffff) | 0x00f0;
476 	mutex_unlock(&ice->gpio_mutex);
477 	return 0;
478 }
479 
480 static int pontis_gpio_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
481 {
482 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
483 	unsigned int val;
484 	int changed;
485 	mutex_lock(&ice->gpio_mutex);
486 	/* 4-7 reserved */
487 	val = (~ucontrol->value.integer.value[0] & 0xffff) | 0x00f0;
488 	changed = val != ice->gpio.write_mask;
489 	ice->gpio.write_mask = val;
490 	mutex_unlock(&ice->gpio_mutex);
491 	return changed;
492 }
493 
494 static int pontis_gpio_dir_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
495 {
496 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
497 	mutex_lock(&ice->gpio_mutex);
498 	/* 4-7 reserved */
499 	ucontrol->value.integer.value[0] = ice->gpio.direction & 0xff0f;
500 	mutex_unlock(&ice->gpio_mutex);
501 	return 0;
502 }
503 
504 static int pontis_gpio_dir_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
505 {
506 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
507 	unsigned int val;
508 	int changed;
509 	mutex_lock(&ice->gpio_mutex);
510 	/* 4-7 reserved */
511 	val = ucontrol->value.integer.value[0] & 0xff0f;
512 	changed = (val != ice->gpio.direction);
513 	ice->gpio.direction = val;
514 	mutex_unlock(&ice->gpio_mutex);
515 	return changed;
516 }
517 
518 static int pontis_gpio_data_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
519 {
520 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
521 	mutex_lock(&ice->gpio_mutex);
522 	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
523 	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
524 	ucontrol->value.integer.value[0] = snd_ice1712_gpio_read(ice) & 0xffff;
525 	mutex_unlock(&ice->gpio_mutex);
526 	return 0;
527 }
528 
529 static int pontis_gpio_data_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
530 {
531 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
532 	unsigned int val, nval;
533 	int changed = 0;
534 	mutex_lock(&ice->gpio_mutex);
535 	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
536 	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
537 	val = snd_ice1712_gpio_read(ice) & 0xffff;
538 	nval = ucontrol->value.integer.value[0] & 0xffff;
539 	if (val != nval) {
540 		snd_ice1712_gpio_write(ice, nval);
541 		changed = 1;
542 	}
543 	mutex_unlock(&ice->gpio_mutex);
544 	return changed;
545 }
546 
547 static const DECLARE_TLV_DB_SCALE(db_scale_volume, -6400, 50, 1);
548 
549 /*
550  * mixers
551  */
552 
553 static struct snd_kcontrol_new pontis_controls[] __devinitdata = {
554 	{
555 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
556 		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
557 			   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
558 		.name = "PCM Playback Volume",
559 		.info = wm_dac_vol_info,
560 		.get = wm_dac_vol_get,
561 		.put = wm_dac_vol_put,
562 		.tlv = { .p = db_scale_volume },
563 	},
564 	{
565 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
566 		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
567 			   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
568 		.name = "Capture Volume",
569 		.info = wm_adc_vol_info,
570 		.get = wm_adc_vol_get,
571 		.put = wm_adc_vol_put,
572 		.tlv = { .p = db_scale_volume },
573 	},
574 	{
575 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
576 		.name = "CD Capture Switch",
577 		.info = wm_adc_mux_info,
578 		.get = wm_adc_mux_get,
579 		.put = wm_adc_mux_put,
580 		.private_value = 0,
581 	},
582 	{
583 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
584 		.name = "Line Capture Switch",
585 		.info = wm_adc_mux_info,
586 		.get = wm_adc_mux_get,
587 		.put = wm_adc_mux_put,
588 		.private_value = 1,
589 	},
590 	{
591 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
592 		.name = "Analog Bypass Switch",
593 		.info = wm_bypass_info,
594 		.get = wm_bypass_get,
595 		.put = wm_bypass_put,
596 	},
597 	{
598 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
599 		.name = "Swap Output Channels",
600 		.info = wm_chswap_info,
601 		.get = wm_chswap_get,
602 		.put = wm_chswap_put,
603 	},
604 	{
605 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
606 		.name = "IEC958 Input Source",
607 		.info = cs_source_info,
608 		.get = cs_source_get,
609 		.put = cs_source_put,
610 	},
611 	/* FIXME: which interface? */
612 	{
613 		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
614 		.name = "GPIO Mask",
615 		.info = pontis_gpio_mask_info,
616 		.get = pontis_gpio_mask_get,
617 		.put = pontis_gpio_mask_put,
618 	},
619 	{
620 		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
621 		.name = "GPIO Direction",
622 		.info = pontis_gpio_mask_info,
623 		.get = pontis_gpio_dir_get,
624 		.put = pontis_gpio_dir_put,
625 	},
626 	{
627 		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
628 		.name = "GPIO Data",
629 		.info = pontis_gpio_mask_info,
630 		.get = pontis_gpio_data_get,
631 		.put = pontis_gpio_data_put,
632 	},
633 };
634 
635 
636 /*
637  * WM codec registers
638  */
639 static void wm_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
640 {
641 	struct snd_ice1712 *ice = entry->private_data;
642 	char line[64];
643 	unsigned int reg, val;
644 	mutex_lock(&ice->gpio_mutex);
645 	while (!snd_info_get_line(buffer, line, sizeof(line))) {
646 		if (sscanf(line, "%x %x", &reg, &val) != 2)
647 			continue;
648 		if (reg <= 0x17 && val <= 0xffff)
649 			wm_put(ice, reg, val);
650 	}
651 	mutex_unlock(&ice->gpio_mutex);
652 }
653 
654 static void wm_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
655 {
656 	struct snd_ice1712 *ice = entry->private_data;
657 	int reg, val;
658 
659 	mutex_lock(&ice->gpio_mutex);
660 	for (reg = 0; reg <= 0x17; reg++) {
661 		val = wm_get(ice, reg);
662 		snd_iprintf(buffer, "%02x = %04x\n", reg, val);
663 	}
664 	mutex_unlock(&ice->gpio_mutex);
665 }
666 
667 static void wm_proc_init(struct snd_ice1712 *ice)
668 {
669 	struct snd_info_entry *entry;
670 	if (! snd_card_proc_new(ice->card, "wm_codec", &entry)) {
671 		snd_info_set_text_ops(entry, ice, wm_proc_regs_read);
672 		entry->mode |= S_IWUSR;
673 		entry->c.text.write = wm_proc_regs_write;
674 	}
675 }
676 
677 static void cs_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
678 {
679 	struct snd_ice1712 *ice = entry->private_data;
680 	int reg, val;
681 
682 	mutex_lock(&ice->gpio_mutex);
683 	for (reg = 0; reg <= 0x26; reg++) {
684 		val = spi_read(ice, CS_DEV, reg);
685 		snd_iprintf(buffer, "%02x = %02x\n", reg, val);
686 	}
687 	val = spi_read(ice, CS_DEV, 0x7f);
688 	snd_iprintf(buffer, "%02x = %02x\n", 0x7f, val);
689 	mutex_unlock(&ice->gpio_mutex);
690 }
691 
692 static void cs_proc_init(struct snd_ice1712 *ice)
693 {
694 	struct snd_info_entry *entry;
695 	if (! snd_card_proc_new(ice->card, "cs_codec", &entry))
696 		snd_info_set_text_ops(entry, ice, cs_proc_regs_read);
697 }
698 
699 
700 static int __devinit pontis_add_controls(struct snd_ice1712 *ice)
701 {
702 	unsigned int i;
703 	int err;
704 
705 	for (i = 0; i < ARRAY_SIZE(pontis_controls); i++) {
706 		err = snd_ctl_add(ice->card, snd_ctl_new1(&pontis_controls[i], ice));
707 		if (err < 0)
708 			return err;
709 	}
710 
711 	wm_proc_init(ice);
712 	cs_proc_init(ice);
713 
714 	return 0;
715 }
716 
717 
718 /*
719  * initialize the chip
720  */
721 static int __devinit pontis_init(struct snd_ice1712 *ice)
722 {
723 	static const unsigned short wm_inits[] = {
724 		/* These come first to reduce init pop noise */
725 		WM_ADC_MUX,	0x00c0,	/* ADC mute */
726 		WM_DAC_MUTE,	0x0001,	/* DAC softmute */
727 		WM_DAC_CTRL1,	0x0000,	/* DAC mute */
728 
729 		WM_POWERDOWN,	0x0008,	/* All power-up except HP */
730 		WM_RESET,	0x0000,	/* reset */
731 	};
732 	static const unsigned short wm_inits2[] = {
733 		WM_MASTER_CTRL,	0x0022,	/* 256fs, slave mode */
734 		WM_DAC_INT,	0x0022,	/* I2S, normal polarity, 24bit */
735 		WM_ADC_INT,	0x0022,	/* I2S, normal polarity, 24bit */
736 		WM_DAC_CTRL1,	0x0090,	/* DAC L/R */
737 		WM_OUT_MUX,	0x0001,	/* OUT DAC */
738 		WM_HP_ATTEN_L,	0x0179,	/* HP 0dB */
739 		WM_HP_ATTEN_R,	0x0179,	/* HP 0dB */
740 		WM_DAC_ATTEN_L,	0x0000,	/* DAC 0dB */
741 		WM_DAC_ATTEN_L,	0x0100,	/* DAC 0dB */
742 		WM_DAC_ATTEN_R,	0x0000,	/* DAC 0dB */
743 		WM_DAC_ATTEN_R,	0x0100,	/* DAC 0dB */
744 		/* WM_DAC_MASTER,	0x0100, */	/* DAC master muted */
745 		WM_PHASE_SWAP,	0x0000,	/* phase normal */
746 		WM_DAC_CTRL2,	0x0000,	/* no deemphasis, no ZFLG */
747 		WM_ADC_ATTEN_L,	0x0000,	/* ADC muted */
748 		WM_ADC_ATTEN_R,	0x0000,	/* ADC muted */
749 #if 0
750 		WM_ALC_CTRL1,	0x007b,	/* */
751 		WM_ALC_CTRL2,	0x0000,	/* */
752 		WM_ALC_CTRL3,	0x0000,	/* */
753 		WM_NOISE_GATE,	0x0000,	/* */
754 #endif
755 		WM_DAC_MUTE,	0x0000,	/* DAC unmute */
756 		WM_ADC_MUX,	0x0003,	/* ADC unmute, both CD/Line On */
757 	};
758 	static const unsigned char cs_inits[] = {
759 		0x04,	0x80,	/* RUN, RXP0 */
760 		0x05,	0x05,	/* slave, 24bit */
761 		0x01,	0x00,
762 		0x02,	0x00,
763 		0x03,	0x00,
764 	};
765 	unsigned int i;
766 
767 	ice->vt1720 = 1;
768 	ice->num_total_dacs = 2;
769 	ice->num_total_adcs = 2;
770 
771 	/* to remeber the register values */
772 	ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
773 	if (! ice->akm)
774 		return -ENOMEM;
775 	ice->akm_codecs = 1;
776 
777 	/* HACK - use this as the SPDIF source.
778 	 * don't call snd_ice1712_gpio_get/put(), otherwise it's overwritten
779 	 */
780 	ice->gpio.saved[0] = 0;
781 
782 	/* initialize WM8776 codec */
783 	for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
784 		wm_put(ice, wm_inits[i], wm_inits[i+1]);
785 	schedule_timeout_uninterruptible(1);
786 	for (i = 0; i < ARRAY_SIZE(wm_inits2); i += 2)
787 		wm_put(ice, wm_inits2[i], wm_inits2[i+1]);
788 
789 	/* initialize CS8416 codec */
790 	/* assert PRST#; MT05 bit 7 */
791 	outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
792 	mdelay(5);
793 	/* deassert PRST# */
794 	outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));
795 
796 	for (i = 0; i < ARRAY_SIZE(cs_inits); i += 2)
797 		spi_write(ice, CS_DEV, cs_inits[i], cs_inits[i+1]);
798 
799 	return 0;
800 }
801 
802 
803 /*
804  * Pontis boards don't provide the EEPROM data at all.
805  * hence the driver needs to sets up it properly.
806  */
807 
808 static unsigned char pontis_eeprom[] __devinitdata = {
809 	[ICE_EEP2_SYSCONF]     = 0x08,	/* clock 256, mpu401, spdif-in/ADC, 1DAC */
810 	[ICE_EEP2_ACLINK]      = 0x80,	/* I2S */
811 	[ICE_EEP2_I2S]         = 0xf8,	/* vol, 96k, 24bit, 192k */
812 	[ICE_EEP2_SPDIF]       = 0xc3,	/* out-en, out-int, spdif-in */
813 	[ICE_EEP2_GPIO_DIR]    = 0x07,
814 	[ICE_EEP2_GPIO_DIR1]   = 0x00,
815 	[ICE_EEP2_GPIO_DIR2]   = 0x00,	/* ignored */
816 	[ICE_EEP2_GPIO_MASK]   = 0x0f,	/* 4-7 reserved for CS8416 */
817 	[ICE_EEP2_GPIO_MASK1]  = 0xff,
818 	[ICE_EEP2_GPIO_MASK2]  = 0x00,	/* ignored */
819 	[ICE_EEP2_GPIO_STATE]  = 0x06,	/* 0-low, 1-high, 2-high */
820 	[ICE_EEP2_GPIO_STATE1] = 0x00,
821 	[ICE_EEP2_GPIO_STATE2] = 0x00,	/* ignored */
822 };
823 
824 /* entry point */
825 struct snd_ice1712_card_info snd_vt1720_pontis_cards[] __devinitdata = {
826 	{
827 		.subvendor = VT1720_SUBDEVICE_PONTIS_MS300,
828 		.name = "Pontis MS300",
829 		.model = "ms300",
830 		.chip_init = pontis_init,
831 		.build_controls = pontis_add_controls,
832 		.eeprom_size = sizeof(pontis_eeprom),
833 		.eeprom_data = pontis_eeprom,
834 	},
835 	{ } /* terminator */
836 };
837