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 */
81static 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 */
91static 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
98static 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
114static 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
123static 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
139static 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
169static 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
178static 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
194static 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
220static 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
231static 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
257static 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
267static 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
292static 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
302static 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 */
327static 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
337static 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
351static 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
370static 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
386static 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 */
413static 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
423static 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
433static 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 */
454static 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
463static 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
473static 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
487static 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
497static 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
511static 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
522static 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
540static const DECLARE_TLV_DB_SCALE(db_scale_volume, -6400, 50, 1);
541
542/*
543 * mixers
544 */
545
546static 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 */
632static 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
647static 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
660static 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
670static 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
685static 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
693static 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 */
714static 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
801static 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 */
818struct 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