xref: /openbmc/linux/sound/pci/ice1712/pontis.c (revision b34e08d5)
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 <linux/delay.h>
25 #include <linux/interrupt.h>
26 #include <linux/init.h>
27 #include <linux/slab.h>
28 #include <linux/mutex.h>
29 
30 #include <sound/core.h>
31 #include <sound/info.h>
32 #include <sound/tlv.h>
33 
34 #include "ice1712.h"
35 #include "envy24ht.h"
36 #include "pontis.h"
37 
38 /* I2C addresses */
39 #define WM_DEV		0x34
40 #define CS_DEV		0x20
41 
42 /* WM8776 registers */
43 #define WM_HP_ATTEN_L		0x00	/* headphone left attenuation */
44 #define WM_HP_ATTEN_R		0x01	/* headphone left attenuation */
45 #define WM_HP_MASTER		0x02	/* headphone master (both channels) */
46 					/* override LLR */
47 #define WM_DAC_ATTEN_L		0x03	/* digital left attenuation */
48 #define WM_DAC_ATTEN_R		0x04
49 #define WM_DAC_MASTER		0x05
50 #define WM_PHASE_SWAP		0x06	/* DAC phase swap */
51 #define WM_DAC_CTRL1		0x07
52 #define WM_DAC_MUTE		0x08
53 #define WM_DAC_CTRL2		0x09
54 #define WM_DAC_INT		0x0a
55 #define WM_ADC_INT		0x0b
56 #define WM_MASTER_CTRL		0x0c
57 #define WM_POWERDOWN		0x0d
58 #define WM_ADC_ATTEN_L		0x0e
59 #define WM_ADC_ATTEN_R		0x0f
60 #define WM_ALC_CTRL1		0x10
61 #define WM_ALC_CTRL2		0x11
62 #define WM_ALC_CTRL3		0x12
63 #define WM_NOISE_GATE		0x13
64 #define WM_LIMITER		0x14
65 #define WM_ADC_MUX		0x15
66 #define WM_OUT_MUX		0x16
67 #define WM_RESET		0x17
68 
69 /*
70  * GPIO
71  */
72 #define PONTIS_CS_CS		(1<<4)	/* CS */
73 #define PONTIS_CS_CLK		(1<<5)	/* CLK */
74 #define PONTIS_CS_RDATA		(1<<6)	/* CS8416 -> VT1720 */
75 #define PONTIS_CS_WDATA		(1<<7)	/* VT1720 -> CS8416 */
76 
77 
78 /*
79  * get the current register value of WM codec
80  */
81 static unsigned short wm_get(struct snd_ice1712 *ice, int reg)
82 {
83 	reg <<= 1;
84 	return ((unsigned short)ice->akm[0].images[reg] << 8) |
85 		ice->akm[0].images[reg + 1];
86 }
87 
88 /*
89  * set the register value of WM codec and remember it
90  */
91 static void wm_put_nocache(struct snd_ice1712 *ice, int reg, unsigned short val)
92 {
93 	unsigned short cval;
94 	cval = (reg << 9) | val;
95 	snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff);
96 }
97 
98 static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val)
99 {
100 	wm_put_nocache(ice, reg, val);
101 	reg <<= 1;
102 	ice->akm[0].images[reg] = val >> 8;
103 	ice->akm[0].images[reg + 1] = val;
104 }
105 
106 /*
107  * DAC volume attenuation mixer control (-64dB to 0dB)
108  */
109 
110 #define DAC_0dB	0xff
111 #define DAC_RES	128
112 #define DAC_MIN	(DAC_0dB - DAC_RES)
113 
114 static int wm_dac_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
115 {
116 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
117 	uinfo->count = 2;
118 	uinfo->value.integer.min = 0;	/* mute */
119 	uinfo->value.integer.max = DAC_RES;	/* 0dB, 0.5dB step */
120 	return 0;
121 }
122 
123 static int wm_dac_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
124 {
125 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
126 	unsigned short val;
127 	int i;
128 
129 	mutex_lock(&ice->gpio_mutex);
130 	for (i = 0; i < 2; i++) {
131 		val = wm_get(ice, WM_DAC_ATTEN_L + i) & 0xff;
132 		val = val > DAC_MIN ? (val - DAC_MIN) : 0;
133 		ucontrol->value.integer.value[i] = val;
134 	}
135 	mutex_unlock(&ice->gpio_mutex);
136 	return 0;
137 }
138 
139 static int wm_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
140 {
141 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
142 	unsigned short oval, nval;
143 	int i, idx, change = 0;
144 
145 	mutex_lock(&ice->gpio_mutex);
146 	for (i = 0; i < 2; i++) {
147 		nval = ucontrol->value.integer.value[i];
148 		nval = (nval ? (nval + DAC_MIN) : 0) & 0xff;
149 		idx = WM_DAC_ATTEN_L + i;
150 		oval = wm_get(ice, idx) & 0xff;
151 		if (oval != nval) {
152 			wm_put(ice, idx, nval);
153 			wm_put_nocache(ice, idx, nval | 0x100);
154 			change = 1;
155 		}
156 	}
157 	mutex_unlock(&ice->gpio_mutex);
158 	return change;
159 }
160 
161 /*
162  * ADC gain mixer control (-64dB to 0dB)
163  */
164 
165 #define ADC_0dB	0xcf
166 #define ADC_RES	128
167 #define ADC_MIN	(ADC_0dB - ADC_RES)
168 
169 static int wm_adc_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
170 {
171 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
172 	uinfo->count = 2;
173 	uinfo->value.integer.min = 0;	/* mute (-64dB) */
174 	uinfo->value.integer.max = ADC_RES;	/* 0dB, 0.5dB step */
175 	return 0;
176 }
177 
178 static int wm_adc_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
179 {
180 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
181 	unsigned short val;
182 	int i;
183 
184 	mutex_lock(&ice->gpio_mutex);
185 	for (i = 0; i < 2; i++) {
186 		val = wm_get(ice, WM_ADC_ATTEN_L + i) & 0xff;
187 		val = val > ADC_MIN ? (val - ADC_MIN) : 0;
188 		ucontrol->value.integer.value[i] = val;
189 	}
190 	mutex_unlock(&ice->gpio_mutex);
191 	return 0;
192 }
193 
194 static int wm_adc_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
195 {
196 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
197 	unsigned short ovol, nvol;
198 	int i, idx, change = 0;
199 
200 	mutex_lock(&ice->gpio_mutex);
201 	for (i = 0; i < 2; i++) {
202 		nvol = ucontrol->value.integer.value[i];
203 		nvol = nvol ? (nvol + ADC_MIN) : 0;
204 		idx  = WM_ADC_ATTEN_L + i;
205 		ovol = wm_get(ice, idx) & 0xff;
206 		if (ovol != nvol) {
207 			wm_put(ice, idx, nvol);
208 			change = 1;
209 		}
210 	}
211 	mutex_unlock(&ice->gpio_mutex);
212 	return change;
213 }
214 
215 /*
216  * ADC input mux mixer control
217  */
218 #define wm_adc_mux_info		snd_ctl_boolean_mono_info
219 
220 static int wm_adc_mux_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
221 {
222 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
223 	int bit = kcontrol->private_value;
224 
225 	mutex_lock(&ice->gpio_mutex);
226 	ucontrol->value.integer.value[0] = (wm_get(ice, WM_ADC_MUX) & (1 << bit)) ? 1 : 0;
227 	mutex_unlock(&ice->gpio_mutex);
228 	return 0;
229 }
230 
231 static int wm_adc_mux_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
232 {
233 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
234 	int bit = kcontrol->private_value;
235 	unsigned short oval, nval;
236 	int change;
237 
238 	mutex_lock(&ice->gpio_mutex);
239 	nval = oval = wm_get(ice, WM_ADC_MUX);
240 	if (ucontrol->value.integer.value[0])
241 		nval |= (1 << bit);
242 	else
243 		nval &= ~(1 << bit);
244 	change = nval != oval;
245 	if (change) {
246 		wm_put(ice, WM_ADC_MUX, nval);
247 	}
248 	mutex_unlock(&ice->gpio_mutex);
249 	return change;
250 }
251 
252 /*
253  * Analog bypass (In -> Out)
254  */
255 #define wm_bypass_info		snd_ctl_boolean_mono_info
256 
257 static int wm_bypass_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
258 {
259 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
260 
261 	mutex_lock(&ice->gpio_mutex);
262 	ucontrol->value.integer.value[0] = (wm_get(ice, WM_OUT_MUX) & 0x04) ? 1 : 0;
263 	mutex_unlock(&ice->gpio_mutex);
264 	return 0;
265 }
266 
267 static int wm_bypass_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
268 {
269 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
270 	unsigned short val, oval;
271 	int change = 0;
272 
273 	mutex_lock(&ice->gpio_mutex);
274 	val = oval = wm_get(ice, WM_OUT_MUX);
275 	if (ucontrol->value.integer.value[0])
276 		val |= 0x04;
277 	else
278 		val &= ~0x04;
279 	if (val != oval) {
280 		wm_put(ice, WM_OUT_MUX, val);
281 		change = 1;
282 	}
283 	mutex_unlock(&ice->gpio_mutex);
284 	return change;
285 }
286 
287 /*
288  * Left/Right swap
289  */
290 #define wm_chswap_info		snd_ctl_boolean_mono_info
291 
292 static int wm_chswap_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
293 {
294 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
295 
296 	mutex_lock(&ice->gpio_mutex);
297 	ucontrol->value.integer.value[0] = (wm_get(ice, WM_DAC_CTRL1) & 0xf0) != 0x90;
298 	mutex_unlock(&ice->gpio_mutex);
299 	return 0;
300 }
301 
302 static int wm_chswap_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
303 {
304 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
305 	unsigned short val, oval;
306 	int change = 0;
307 
308 	mutex_lock(&ice->gpio_mutex);
309 	oval = wm_get(ice, WM_DAC_CTRL1);
310 	val = oval & 0x0f;
311 	if (ucontrol->value.integer.value[0])
312 		val |= 0x60;
313 	else
314 		val |= 0x90;
315 	if (val != oval) {
316 		wm_put(ice, WM_DAC_CTRL1, val);
317 		wm_put_nocache(ice, WM_DAC_CTRL1, val);
318 		change = 1;
319 	}
320 	mutex_unlock(&ice->gpio_mutex);
321 	return change;
322 }
323 
324 /*
325  * write data in the SPI mode
326  */
327 static void set_gpio_bit(struct snd_ice1712 *ice, unsigned int bit, int val)
328 {
329 	unsigned int tmp = snd_ice1712_gpio_read(ice);
330 	if (val)
331 		tmp |= bit;
332 	else
333 		tmp &= ~bit;
334 	snd_ice1712_gpio_write(ice, tmp);
335 }
336 
337 static void spi_send_byte(struct snd_ice1712 *ice, unsigned char data)
338 {
339 	int i;
340 	for (i = 0; i < 8; i++) {
341 		set_gpio_bit(ice, PONTIS_CS_CLK, 0);
342 		udelay(1);
343 		set_gpio_bit(ice, PONTIS_CS_WDATA, data & 0x80);
344 		udelay(1);
345 		set_gpio_bit(ice, PONTIS_CS_CLK, 1);
346 		udelay(1);
347 		data <<= 1;
348 	}
349 }
350 
351 static unsigned int spi_read_byte(struct snd_ice1712 *ice)
352 {
353 	int i;
354 	unsigned int val = 0;
355 
356 	for (i = 0; i < 8; i++) {
357 		val <<= 1;
358 		set_gpio_bit(ice, PONTIS_CS_CLK, 0);
359 		udelay(1);
360 		if (snd_ice1712_gpio_read(ice) & PONTIS_CS_RDATA)
361 			val |= 1;
362 		udelay(1);
363 		set_gpio_bit(ice, PONTIS_CS_CLK, 1);
364 		udelay(1);
365 	}
366 	return val;
367 }
368 
369 
370 static void spi_write(struct snd_ice1712 *ice, unsigned int dev, unsigned int reg, unsigned int data)
371 {
372 	snd_ice1712_gpio_set_dir(ice, PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK);
373 	snd_ice1712_gpio_set_mask(ice, ~(PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK));
374 	set_gpio_bit(ice, PONTIS_CS_CS, 0);
375 	spi_send_byte(ice, dev & ~1); /* WRITE */
376 	spi_send_byte(ice, reg); /* MAP */
377 	spi_send_byte(ice, data); /* DATA */
378 	/* trigger */
379 	set_gpio_bit(ice, PONTIS_CS_CS, 1);
380 	udelay(1);
381 	/* restore */
382 	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
383 	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
384 }
385 
386 static unsigned int spi_read(struct snd_ice1712 *ice, unsigned int dev, unsigned int reg)
387 {
388 	unsigned int val;
389 	snd_ice1712_gpio_set_dir(ice, PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK);
390 	snd_ice1712_gpio_set_mask(ice, ~(PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK));
391 	set_gpio_bit(ice, PONTIS_CS_CS, 0);
392 	spi_send_byte(ice, dev & ~1); /* WRITE */
393 	spi_send_byte(ice, reg); /* MAP */
394 	/* trigger */
395 	set_gpio_bit(ice, PONTIS_CS_CS, 1);
396 	udelay(1);
397 	set_gpio_bit(ice, PONTIS_CS_CS, 0);
398 	spi_send_byte(ice, dev | 1); /* READ */
399 	val = spi_read_byte(ice);
400 	/* trigger */
401 	set_gpio_bit(ice, PONTIS_CS_CS, 1);
402 	udelay(1);
403 	/* restore */
404 	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
405 	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
406 	return val;
407 }
408 
409 
410 /*
411  * SPDIF input source
412  */
413 static int cs_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
414 {
415 	static const char * const texts[] = {
416 		"Coax",		/* RXP0 */
417 		"Optical",	/* RXP1 */
418 		"CD",		/* RXP2 */
419 	};
420 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
421 	uinfo->count = 1;
422 	uinfo->value.enumerated.items = 3;
423 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
424 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
425 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
426 	return 0;
427 }
428 
429 static int cs_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
430 {
431 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
432 
433 	mutex_lock(&ice->gpio_mutex);
434 	ucontrol->value.enumerated.item[0] = ice->gpio.saved[0];
435 	mutex_unlock(&ice->gpio_mutex);
436 	return 0;
437 }
438 
439 static int cs_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
440 {
441 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
442 	unsigned char val;
443 	int change = 0;
444 
445 	mutex_lock(&ice->gpio_mutex);
446 	if (ucontrol->value.enumerated.item[0] != ice->gpio.saved[0]) {
447 		ice->gpio.saved[0] = ucontrol->value.enumerated.item[0] & 3;
448 		val = 0x80 | (ice->gpio.saved[0] << 3);
449 		spi_write(ice, CS_DEV, 0x04, val);
450 		change = 1;
451 	}
452 	mutex_unlock(&ice->gpio_mutex);
453 	return change;
454 }
455 
456 
457 /*
458  * GPIO controls
459  */
460 static int pontis_gpio_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
461 {
462 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
463 	uinfo->count = 1;
464 	uinfo->value.integer.min = 0;
465 	uinfo->value.integer.max = 0xffff; /* 16bit */
466 	return 0;
467 }
468 
469 static int pontis_gpio_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
470 {
471 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
472 	mutex_lock(&ice->gpio_mutex);
473 	/* 4-7 reserved */
474 	ucontrol->value.integer.value[0] = (~ice->gpio.write_mask & 0xffff) | 0x00f0;
475 	mutex_unlock(&ice->gpio_mutex);
476 	return 0;
477 }
478 
479 static int pontis_gpio_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
480 {
481 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
482 	unsigned int val;
483 	int changed;
484 	mutex_lock(&ice->gpio_mutex);
485 	/* 4-7 reserved */
486 	val = (~ucontrol->value.integer.value[0] & 0xffff) | 0x00f0;
487 	changed = val != ice->gpio.write_mask;
488 	ice->gpio.write_mask = val;
489 	mutex_unlock(&ice->gpio_mutex);
490 	return changed;
491 }
492 
493 static int pontis_gpio_dir_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
494 {
495 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
496 	mutex_lock(&ice->gpio_mutex);
497 	/* 4-7 reserved */
498 	ucontrol->value.integer.value[0] = ice->gpio.direction & 0xff0f;
499 	mutex_unlock(&ice->gpio_mutex);
500 	return 0;
501 }
502 
503 static int pontis_gpio_dir_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
504 {
505 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
506 	unsigned int val;
507 	int changed;
508 	mutex_lock(&ice->gpio_mutex);
509 	/* 4-7 reserved */
510 	val = ucontrol->value.integer.value[0] & 0xff0f;
511 	changed = (val != ice->gpio.direction);
512 	ice->gpio.direction = val;
513 	mutex_unlock(&ice->gpio_mutex);
514 	return changed;
515 }
516 
517 static int pontis_gpio_data_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
518 {
519 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
520 	mutex_lock(&ice->gpio_mutex);
521 	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
522 	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
523 	ucontrol->value.integer.value[0] = snd_ice1712_gpio_read(ice) & 0xffff;
524 	mutex_unlock(&ice->gpio_mutex);
525 	return 0;
526 }
527 
528 static int pontis_gpio_data_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
529 {
530 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
531 	unsigned int val, nval;
532 	int changed = 0;
533 	mutex_lock(&ice->gpio_mutex);
534 	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
535 	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
536 	val = snd_ice1712_gpio_read(ice) & 0xffff;
537 	nval = ucontrol->value.integer.value[0] & 0xffff;
538 	if (val != nval) {
539 		snd_ice1712_gpio_write(ice, nval);
540 		changed = 1;
541 	}
542 	mutex_unlock(&ice->gpio_mutex);
543 	return changed;
544 }
545 
546 static const DECLARE_TLV_DB_SCALE(db_scale_volume, -6400, 50, 1);
547 
548 /*
549  * mixers
550  */
551 
552 static struct snd_kcontrol_new pontis_controls[] = {
553 	{
554 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
555 		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
556 			   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
557 		.name = "PCM Playback Volume",
558 		.info = wm_dac_vol_info,
559 		.get = wm_dac_vol_get,
560 		.put = wm_dac_vol_put,
561 		.tlv = { .p = db_scale_volume },
562 	},
563 	{
564 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
565 		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
566 			   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
567 		.name = "Capture Volume",
568 		.info = wm_adc_vol_info,
569 		.get = wm_adc_vol_get,
570 		.put = wm_adc_vol_put,
571 		.tlv = { .p = db_scale_volume },
572 	},
573 	{
574 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
575 		.name = "CD Capture Switch",
576 		.info = wm_adc_mux_info,
577 		.get = wm_adc_mux_get,
578 		.put = wm_adc_mux_put,
579 		.private_value = 0,
580 	},
581 	{
582 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
583 		.name = "Line Capture Switch",
584 		.info = wm_adc_mux_info,
585 		.get = wm_adc_mux_get,
586 		.put = wm_adc_mux_put,
587 		.private_value = 1,
588 	},
589 	{
590 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
591 		.name = "Analog Bypass Switch",
592 		.info = wm_bypass_info,
593 		.get = wm_bypass_get,
594 		.put = wm_bypass_put,
595 	},
596 	{
597 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
598 		.name = "Swap Output Channels",
599 		.info = wm_chswap_info,
600 		.get = wm_chswap_get,
601 		.put = wm_chswap_put,
602 	},
603 	{
604 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
605 		.name = "IEC958 Input Source",
606 		.info = cs_source_info,
607 		.get = cs_source_get,
608 		.put = cs_source_put,
609 	},
610 	/* FIXME: which interface? */
611 	{
612 		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
613 		.name = "GPIO Mask",
614 		.info = pontis_gpio_mask_info,
615 		.get = pontis_gpio_mask_get,
616 		.put = pontis_gpio_mask_put,
617 	},
618 	{
619 		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
620 		.name = "GPIO Direction",
621 		.info = pontis_gpio_mask_info,
622 		.get = pontis_gpio_dir_get,
623 		.put = pontis_gpio_dir_put,
624 	},
625 	{
626 		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
627 		.name = "GPIO Data",
628 		.info = pontis_gpio_mask_info,
629 		.get = pontis_gpio_data_get,
630 		.put = pontis_gpio_data_put,
631 	},
632 };
633 
634 
635 /*
636  * WM codec registers
637  */
638 static void wm_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
639 {
640 	struct snd_ice1712 *ice = entry->private_data;
641 	char line[64];
642 	unsigned int reg, val;
643 	mutex_lock(&ice->gpio_mutex);
644 	while (!snd_info_get_line(buffer, line, sizeof(line))) {
645 		if (sscanf(line, "%x %x", &reg, &val) != 2)
646 			continue;
647 		if (reg <= 0x17 && val <= 0xffff)
648 			wm_put(ice, reg, val);
649 	}
650 	mutex_unlock(&ice->gpio_mutex);
651 }
652 
653 static void wm_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
654 {
655 	struct snd_ice1712 *ice = entry->private_data;
656 	int reg, val;
657 
658 	mutex_lock(&ice->gpio_mutex);
659 	for (reg = 0; reg <= 0x17; reg++) {
660 		val = wm_get(ice, reg);
661 		snd_iprintf(buffer, "%02x = %04x\n", reg, val);
662 	}
663 	mutex_unlock(&ice->gpio_mutex);
664 }
665 
666 static void wm_proc_init(struct snd_ice1712 *ice)
667 {
668 	struct snd_info_entry *entry;
669 	if (! snd_card_proc_new(ice->card, "wm_codec", &entry)) {
670 		snd_info_set_text_ops(entry, ice, wm_proc_regs_read);
671 		entry->mode |= S_IWUSR;
672 		entry->c.text.write = wm_proc_regs_write;
673 	}
674 }
675 
676 static void cs_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
677 {
678 	struct snd_ice1712 *ice = entry->private_data;
679 	int reg, val;
680 
681 	mutex_lock(&ice->gpio_mutex);
682 	for (reg = 0; reg <= 0x26; reg++) {
683 		val = spi_read(ice, CS_DEV, reg);
684 		snd_iprintf(buffer, "%02x = %02x\n", reg, val);
685 	}
686 	val = spi_read(ice, CS_DEV, 0x7f);
687 	snd_iprintf(buffer, "%02x = %02x\n", 0x7f, val);
688 	mutex_unlock(&ice->gpio_mutex);
689 }
690 
691 static void cs_proc_init(struct snd_ice1712 *ice)
692 {
693 	struct snd_info_entry *entry;
694 	if (! snd_card_proc_new(ice->card, "cs_codec", &entry))
695 		snd_info_set_text_ops(entry, ice, cs_proc_regs_read);
696 }
697 
698 
699 static int pontis_add_controls(struct snd_ice1712 *ice)
700 {
701 	unsigned int i;
702 	int err;
703 
704 	for (i = 0; i < ARRAY_SIZE(pontis_controls); i++) {
705 		err = snd_ctl_add(ice->card, snd_ctl_new1(&pontis_controls[i], ice));
706 		if (err < 0)
707 			return err;
708 	}
709 
710 	wm_proc_init(ice);
711 	cs_proc_init(ice);
712 
713 	return 0;
714 }
715 
716 
717 /*
718  * initialize the chip
719  */
720 static int pontis_init(struct snd_ice1712 *ice)
721 {
722 	static const unsigned short wm_inits[] = {
723 		/* These come first to reduce init pop noise */
724 		WM_ADC_MUX,	0x00c0,	/* ADC mute */
725 		WM_DAC_MUTE,	0x0001,	/* DAC softmute */
726 		WM_DAC_CTRL1,	0x0000,	/* DAC mute */
727 
728 		WM_POWERDOWN,	0x0008,	/* All power-up except HP */
729 		WM_RESET,	0x0000,	/* reset */
730 	};
731 	static const unsigned short wm_inits2[] = {
732 		WM_MASTER_CTRL,	0x0022,	/* 256fs, slave mode */
733 		WM_DAC_INT,	0x0022,	/* I2S, normal polarity, 24bit */
734 		WM_ADC_INT,	0x0022,	/* I2S, normal polarity, 24bit */
735 		WM_DAC_CTRL1,	0x0090,	/* DAC L/R */
736 		WM_OUT_MUX,	0x0001,	/* OUT DAC */
737 		WM_HP_ATTEN_L,	0x0179,	/* HP 0dB */
738 		WM_HP_ATTEN_R,	0x0179,	/* HP 0dB */
739 		WM_DAC_ATTEN_L,	0x0000,	/* DAC 0dB */
740 		WM_DAC_ATTEN_L,	0x0100,	/* DAC 0dB */
741 		WM_DAC_ATTEN_R,	0x0000,	/* DAC 0dB */
742 		WM_DAC_ATTEN_R,	0x0100,	/* DAC 0dB */
743 		/* WM_DAC_MASTER,	0x0100, */	/* DAC master muted */
744 		WM_PHASE_SWAP,	0x0000,	/* phase normal */
745 		WM_DAC_CTRL2,	0x0000,	/* no deemphasis, no ZFLG */
746 		WM_ADC_ATTEN_L,	0x0000,	/* ADC muted */
747 		WM_ADC_ATTEN_R,	0x0000,	/* ADC muted */
748 #if 0
749 		WM_ALC_CTRL1,	0x007b,	/* */
750 		WM_ALC_CTRL2,	0x0000,	/* */
751 		WM_ALC_CTRL3,	0x0000,	/* */
752 		WM_NOISE_GATE,	0x0000,	/* */
753 #endif
754 		WM_DAC_MUTE,	0x0000,	/* DAC unmute */
755 		WM_ADC_MUX,	0x0003,	/* ADC unmute, both CD/Line On */
756 	};
757 	static const unsigned char cs_inits[] = {
758 		0x04,	0x80,	/* RUN, RXP0 */
759 		0x05,	0x05,	/* slave, 24bit */
760 		0x01,	0x00,
761 		0x02,	0x00,
762 		0x03,	0x00,
763 	};
764 	unsigned int i;
765 
766 	ice->vt1720 = 1;
767 	ice->num_total_dacs = 2;
768 	ice->num_total_adcs = 2;
769 
770 	/* to remember the register values */
771 	ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
772 	if (! ice->akm)
773 		return -ENOMEM;
774 	ice->akm_codecs = 1;
775 
776 	/* HACK - use this as the SPDIF source.
777 	 * don't call snd_ice1712_gpio_get/put(), otherwise it's overwritten
778 	 */
779 	ice->gpio.saved[0] = 0;
780 
781 	/* initialize WM8776 codec */
782 	for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
783 		wm_put(ice, wm_inits[i], wm_inits[i+1]);
784 	schedule_timeout_uninterruptible(1);
785 	for (i = 0; i < ARRAY_SIZE(wm_inits2); i += 2)
786 		wm_put(ice, wm_inits2[i], wm_inits2[i+1]);
787 
788 	/* initialize CS8416 codec */
789 	/* assert PRST#; MT05 bit 7 */
790 	outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
791 	mdelay(5);
792 	/* deassert PRST# */
793 	outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));
794 
795 	for (i = 0; i < ARRAY_SIZE(cs_inits); i += 2)
796 		spi_write(ice, CS_DEV, cs_inits[i], cs_inits[i+1]);
797 
798 	return 0;
799 }
800 
801 
802 /*
803  * Pontis boards don't provide the EEPROM data at all.
804  * hence the driver needs to sets up it properly.
805  */
806 
807 static unsigned char pontis_eeprom[] = {
808 	[ICE_EEP2_SYSCONF]     = 0x08,	/* clock 256, mpu401, spdif-in/ADC, 1DAC */
809 	[ICE_EEP2_ACLINK]      = 0x80,	/* I2S */
810 	[ICE_EEP2_I2S]         = 0xf8,	/* vol, 96k, 24bit, 192k */
811 	[ICE_EEP2_SPDIF]       = 0xc3,	/* out-en, out-int, spdif-in */
812 	[ICE_EEP2_GPIO_DIR]    = 0x07,
813 	[ICE_EEP2_GPIO_DIR1]   = 0x00,
814 	[ICE_EEP2_GPIO_DIR2]   = 0x00,	/* ignored */
815 	[ICE_EEP2_GPIO_MASK]   = 0x0f,	/* 4-7 reserved for CS8416 */
816 	[ICE_EEP2_GPIO_MASK1]  = 0xff,
817 	[ICE_EEP2_GPIO_MASK2]  = 0x00,	/* ignored */
818 	[ICE_EEP2_GPIO_STATE]  = 0x06,	/* 0-low, 1-high, 2-high */
819 	[ICE_EEP2_GPIO_STATE1] = 0x00,
820 	[ICE_EEP2_GPIO_STATE2] = 0x00,	/* ignored */
821 };
822 
823 /* entry point */
824 struct snd_ice1712_card_info snd_vt1720_pontis_cards[] = {
825 	{
826 		.subvendor = VT1720_SUBDEVICE_PONTIS_MS300,
827 		.name = "Pontis MS300",
828 		.model = "ms300",
829 		.chip_init = pontis_init,
830 		.build_controls = pontis_add_controls,
831 		.eeprom_size = sizeof(pontis_eeprom),
832 		.eeprom_data = pontis_eeprom,
833 	},
834 	{ } /* terminator */
835 };
836