xref: /openbmc/linux/sound/pci/ice1712/pontis.c (revision d7a3d85e)
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 	return snd_ctl_enum_info(uinfo, 1, 3, texts);
421 }
422 
423 static int cs_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
424 {
425 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
426 
427 	mutex_lock(&ice->gpio_mutex);
428 	ucontrol->value.enumerated.item[0] = ice->gpio.saved[0];
429 	mutex_unlock(&ice->gpio_mutex);
430 	return 0;
431 }
432 
433 static int cs_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
434 {
435 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
436 	unsigned char val;
437 	int change = 0;
438 
439 	mutex_lock(&ice->gpio_mutex);
440 	if (ucontrol->value.enumerated.item[0] != ice->gpio.saved[0]) {
441 		ice->gpio.saved[0] = ucontrol->value.enumerated.item[0] & 3;
442 		val = 0x80 | (ice->gpio.saved[0] << 3);
443 		spi_write(ice, CS_DEV, 0x04, val);
444 		change = 1;
445 	}
446 	mutex_unlock(&ice->gpio_mutex);
447 	return change;
448 }
449 
450 
451 /*
452  * GPIO controls
453  */
454 static int pontis_gpio_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
455 {
456 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
457 	uinfo->count = 1;
458 	uinfo->value.integer.min = 0;
459 	uinfo->value.integer.max = 0xffff; /* 16bit */
460 	return 0;
461 }
462 
463 static int pontis_gpio_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
464 {
465 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
466 	mutex_lock(&ice->gpio_mutex);
467 	/* 4-7 reserved */
468 	ucontrol->value.integer.value[0] = (~ice->gpio.write_mask & 0xffff) | 0x00f0;
469 	mutex_unlock(&ice->gpio_mutex);
470 	return 0;
471 }
472 
473 static int pontis_gpio_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
474 {
475 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
476 	unsigned int val;
477 	int changed;
478 	mutex_lock(&ice->gpio_mutex);
479 	/* 4-7 reserved */
480 	val = (~ucontrol->value.integer.value[0] & 0xffff) | 0x00f0;
481 	changed = val != ice->gpio.write_mask;
482 	ice->gpio.write_mask = val;
483 	mutex_unlock(&ice->gpio_mutex);
484 	return changed;
485 }
486 
487 static int pontis_gpio_dir_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
488 {
489 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
490 	mutex_lock(&ice->gpio_mutex);
491 	/* 4-7 reserved */
492 	ucontrol->value.integer.value[0] = ice->gpio.direction & 0xff0f;
493 	mutex_unlock(&ice->gpio_mutex);
494 	return 0;
495 }
496 
497 static int pontis_gpio_dir_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
498 {
499 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
500 	unsigned int val;
501 	int changed;
502 	mutex_lock(&ice->gpio_mutex);
503 	/* 4-7 reserved */
504 	val = ucontrol->value.integer.value[0] & 0xff0f;
505 	changed = (val != ice->gpio.direction);
506 	ice->gpio.direction = val;
507 	mutex_unlock(&ice->gpio_mutex);
508 	return changed;
509 }
510 
511 static int pontis_gpio_data_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
512 {
513 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
514 	mutex_lock(&ice->gpio_mutex);
515 	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
516 	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
517 	ucontrol->value.integer.value[0] = snd_ice1712_gpio_read(ice) & 0xffff;
518 	mutex_unlock(&ice->gpio_mutex);
519 	return 0;
520 }
521 
522 static int pontis_gpio_data_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
523 {
524 	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
525 	unsigned int val, nval;
526 	int changed = 0;
527 	mutex_lock(&ice->gpio_mutex);
528 	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
529 	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
530 	val = snd_ice1712_gpio_read(ice) & 0xffff;
531 	nval = ucontrol->value.integer.value[0] & 0xffff;
532 	if (val != nval) {
533 		snd_ice1712_gpio_write(ice, nval);
534 		changed = 1;
535 	}
536 	mutex_unlock(&ice->gpio_mutex);
537 	return changed;
538 }
539 
540 static const DECLARE_TLV_DB_SCALE(db_scale_volume, -6400, 50, 1);
541 
542 /*
543  * mixers
544  */
545 
546 static struct snd_kcontrol_new pontis_controls[] = {
547 	{
548 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
549 		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
550 			   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
551 		.name = "PCM Playback Volume",
552 		.info = wm_dac_vol_info,
553 		.get = wm_dac_vol_get,
554 		.put = wm_dac_vol_put,
555 		.tlv = { .p = db_scale_volume },
556 	},
557 	{
558 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
559 		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
560 			   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
561 		.name = "Capture Volume",
562 		.info = wm_adc_vol_info,
563 		.get = wm_adc_vol_get,
564 		.put = wm_adc_vol_put,
565 		.tlv = { .p = db_scale_volume },
566 	},
567 	{
568 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
569 		.name = "CD Capture Switch",
570 		.info = wm_adc_mux_info,
571 		.get = wm_adc_mux_get,
572 		.put = wm_adc_mux_put,
573 		.private_value = 0,
574 	},
575 	{
576 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
577 		.name = "Line Capture Switch",
578 		.info = wm_adc_mux_info,
579 		.get = wm_adc_mux_get,
580 		.put = wm_adc_mux_put,
581 		.private_value = 1,
582 	},
583 	{
584 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
585 		.name = "Analog Bypass Switch",
586 		.info = wm_bypass_info,
587 		.get = wm_bypass_get,
588 		.put = wm_bypass_put,
589 	},
590 	{
591 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
592 		.name = "Swap Output Channels",
593 		.info = wm_chswap_info,
594 		.get = wm_chswap_get,
595 		.put = wm_chswap_put,
596 	},
597 	{
598 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
599 		.name = "IEC958 Input Source",
600 		.info = cs_source_info,
601 		.get = cs_source_get,
602 		.put = cs_source_put,
603 	},
604 	/* FIXME: which interface? */
605 	{
606 		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
607 		.name = "GPIO Mask",
608 		.info = pontis_gpio_mask_info,
609 		.get = pontis_gpio_mask_get,
610 		.put = pontis_gpio_mask_put,
611 	},
612 	{
613 		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
614 		.name = "GPIO Direction",
615 		.info = pontis_gpio_mask_info,
616 		.get = pontis_gpio_dir_get,
617 		.put = pontis_gpio_dir_put,
618 	},
619 	{
620 		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
621 		.name = "GPIO Data",
622 		.info = pontis_gpio_mask_info,
623 		.get = pontis_gpio_data_get,
624 		.put = pontis_gpio_data_put,
625 	},
626 };
627 
628 
629 /*
630  * WM codec registers
631  */
632 static void wm_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
633 {
634 	struct snd_ice1712 *ice = entry->private_data;
635 	char line[64];
636 	unsigned int reg, val;
637 	mutex_lock(&ice->gpio_mutex);
638 	while (!snd_info_get_line(buffer, line, sizeof(line))) {
639 		if (sscanf(line, "%x %x", &reg, &val) != 2)
640 			continue;
641 		if (reg <= 0x17 && val <= 0xffff)
642 			wm_put(ice, reg, val);
643 	}
644 	mutex_unlock(&ice->gpio_mutex);
645 }
646 
647 static void wm_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
648 {
649 	struct snd_ice1712 *ice = entry->private_data;
650 	int reg, val;
651 
652 	mutex_lock(&ice->gpio_mutex);
653 	for (reg = 0; reg <= 0x17; reg++) {
654 		val = wm_get(ice, reg);
655 		snd_iprintf(buffer, "%02x = %04x\n", reg, val);
656 	}
657 	mutex_unlock(&ice->gpio_mutex);
658 }
659 
660 static void wm_proc_init(struct snd_ice1712 *ice)
661 {
662 	struct snd_info_entry *entry;
663 	if (! snd_card_proc_new(ice->card, "wm_codec", &entry)) {
664 		snd_info_set_text_ops(entry, ice, wm_proc_regs_read);
665 		entry->mode |= S_IWUSR;
666 		entry->c.text.write = wm_proc_regs_write;
667 	}
668 }
669 
670 static void cs_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
671 {
672 	struct snd_ice1712 *ice = entry->private_data;
673 	int reg, val;
674 
675 	mutex_lock(&ice->gpio_mutex);
676 	for (reg = 0; reg <= 0x26; reg++) {
677 		val = spi_read(ice, CS_DEV, reg);
678 		snd_iprintf(buffer, "%02x = %02x\n", reg, val);
679 	}
680 	val = spi_read(ice, CS_DEV, 0x7f);
681 	snd_iprintf(buffer, "%02x = %02x\n", 0x7f, val);
682 	mutex_unlock(&ice->gpio_mutex);
683 }
684 
685 static void cs_proc_init(struct snd_ice1712 *ice)
686 {
687 	struct snd_info_entry *entry;
688 	if (! snd_card_proc_new(ice->card, "cs_codec", &entry))
689 		snd_info_set_text_ops(entry, ice, cs_proc_regs_read);
690 }
691 
692 
693 static int pontis_add_controls(struct snd_ice1712 *ice)
694 {
695 	unsigned int i;
696 	int err;
697 
698 	for (i = 0; i < ARRAY_SIZE(pontis_controls); i++) {
699 		err = snd_ctl_add(ice->card, snd_ctl_new1(&pontis_controls[i], ice));
700 		if (err < 0)
701 			return err;
702 	}
703 
704 	wm_proc_init(ice);
705 	cs_proc_init(ice);
706 
707 	return 0;
708 }
709 
710 
711 /*
712  * initialize the chip
713  */
714 static int pontis_init(struct snd_ice1712 *ice)
715 {
716 	static const unsigned short wm_inits[] = {
717 		/* These come first to reduce init pop noise */
718 		WM_ADC_MUX,	0x00c0,	/* ADC mute */
719 		WM_DAC_MUTE,	0x0001,	/* DAC softmute */
720 		WM_DAC_CTRL1,	0x0000,	/* DAC mute */
721 
722 		WM_POWERDOWN,	0x0008,	/* All power-up except HP */
723 		WM_RESET,	0x0000,	/* reset */
724 	};
725 	static const unsigned short wm_inits2[] = {
726 		WM_MASTER_CTRL,	0x0022,	/* 256fs, slave mode */
727 		WM_DAC_INT,	0x0022,	/* I2S, normal polarity, 24bit */
728 		WM_ADC_INT,	0x0022,	/* I2S, normal polarity, 24bit */
729 		WM_DAC_CTRL1,	0x0090,	/* DAC L/R */
730 		WM_OUT_MUX,	0x0001,	/* OUT DAC */
731 		WM_HP_ATTEN_L,	0x0179,	/* HP 0dB */
732 		WM_HP_ATTEN_R,	0x0179,	/* HP 0dB */
733 		WM_DAC_ATTEN_L,	0x0000,	/* DAC 0dB */
734 		WM_DAC_ATTEN_L,	0x0100,	/* DAC 0dB */
735 		WM_DAC_ATTEN_R,	0x0000,	/* DAC 0dB */
736 		WM_DAC_ATTEN_R,	0x0100,	/* DAC 0dB */
737 		/* WM_DAC_MASTER,	0x0100, */	/* DAC master muted */
738 		WM_PHASE_SWAP,	0x0000,	/* phase normal */
739 		WM_DAC_CTRL2,	0x0000,	/* no deemphasis, no ZFLG */
740 		WM_ADC_ATTEN_L,	0x0000,	/* ADC muted */
741 		WM_ADC_ATTEN_R,	0x0000,	/* ADC muted */
742 #if 0
743 		WM_ALC_CTRL1,	0x007b,	/* */
744 		WM_ALC_CTRL2,	0x0000,	/* */
745 		WM_ALC_CTRL3,	0x0000,	/* */
746 		WM_NOISE_GATE,	0x0000,	/* */
747 #endif
748 		WM_DAC_MUTE,	0x0000,	/* DAC unmute */
749 		WM_ADC_MUX,	0x0003,	/* ADC unmute, both CD/Line On */
750 	};
751 	static const unsigned char cs_inits[] = {
752 		0x04,	0x80,	/* RUN, RXP0 */
753 		0x05,	0x05,	/* slave, 24bit */
754 		0x01,	0x00,
755 		0x02,	0x00,
756 		0x03,	0x00,
757 	};
758 	unsigned int i;
759 
760 	ice->vt1720 = 1;
761 	ice->num_total_dacs = 2;
762 	ice->num_total_adcs = 2;
763 
764 	/* to remember the register values */
765 	ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
766 	if (! ice->akm)
767 		return -ENOMEM;
768 	ice->akm_codecs = 1;
769 
770 	/* HACK - use this as the SPDIF source.
771 	 * don't call snd_ice1712_gpio_get/put(), otherwise it's overwritten
772 	 */
773 	ice->gpio.saved[0] = 0;
774 
775 	/* initialize WM8776 codec */
776 	for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
777 		wm_put(ice, wm_inits[i], wm_inits[i+1]);
778 	schedule_timeout_uninterruptible(1);
779 	for (i = 0; i < ARRAY_SIZE(wm_inits2); i += 2)
780 		wm_put(ice, wm_inits2[i], wm_inits2[i+1]);
781 
782 	/* initialize CS8416 codec */
783 	/* assert PRST#; MT05 bit 7 */
784 	outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
785 	mdelay(5);
786 	/* deassert PRST# */
787 	outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));
788 
789 	for (i = 0; i < ARRAY_SIZE(cs_inits); i += 2)
790 		spi_write(ice, CS_DEV, cs_inits[i], cs_inits[i+1]);
791 
792 	return 0;
793 }
794 
795 
796 /*
797  * Pontis boards don't provide the EEPROM data at all.
798  * hence the driver needs to sets up it properly.
799  */
800 
801 static unsigned char pontis_eeprom[] = {
802 	[ICE_EEP2_SYSCONF]     = 0x08,	/* clock 256, mpu401, spdif-in/ADC, 1DAC */
803 	[ICE_EEP2_ACLINK]      = 0x80,	/* I2S */
804 	[ICE_EEP2_I2S]         = 0xf8,	/* vol, 96k, 24bit, 192k */
805 	[ICE_EEP2_SPDIF]       = 0xc3,	/* out-en, out-int, spdif-in */
806 	[ICE_EEP2_GPIO_DIR]    = 0x07,
807 	[ICE_EEP2_GPIO_DIR1]   = 0x00,
808 	[ICE_EEP2_GPIO_DIR2]   = 0x00,	/* ignored */
809 	[ICE_EEP2_GPIO_MASK]   = 0x0f,	/* 4-7 reserved for CS8416 */
810 	[ICE_EEP2_GPIO_MASK1]  = 0xff,
811 	[ICE_EEP2_GPIO_MASK2]  = 0x00,	/* ignored */
812 	[ICE_EEP2_GPIO_STATE]  = 0x06,	/* 0-low, 1-high, 2-high */
813 	[ICE_EEP2_GPIO_STATE1] = 0x00,
814 	[ICE_EEP2_GPIO_STATE2] = 0x00,	/* ignored */
815 };
816 
817 /* entry point */
818 struct snd_ice1712_card_info snd_vt1720_pontis_cards[] = {
819 	{
820 		.subvendor = VT1720_SUBDEVICE_PONTIS_MS300,
821 		.name = "Pontis MS300",
822 		.model = "ms300",
823 		.chip_init = pontis_init,
824 		.build_controls = pontis_add_controls,
825 		.eeprom_size = sizeof(pontis_eeprom),
826 		.eeprom_data = pontis_eeprom,
827 	},
828 	{ } /* terminator */
829 };
830