1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
4 *
5 *   Lowlevel functions for Pontis MS300
6 *
7 *	Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
8 */
9
10#include <linux/delay.h>
11#include <linux/interrupt.h>
12#include <linux/init.h>
13#include <linux/slab.h>
14#include <linux/mutex.h>
15
16#include <sound/core.h>
17#include <sound/info.h>
18#include <sound/tlv.h>
19
20#include "ice1712.h"
21#include "envy24ht.h"
22#include "pontis.h"
23
24/* I2C addresses */
25#define WM_DEV		0x34
26#define CS_DEV		0x20
27
28/* WM8776 registers */
29#define WM_HP_ATTEN_L		0x00	/* headphone left attenuation */
30#define WM_HP_ATTEN_R		0x01	/* headphone left attenuation */
31#define WM_HP_MASTER		0x02	/* headphone master (both channels) */
32					/* override LLR */
33#define WM_DAC_ATTEN_L		0x03	/* digital left attenuation */
34#define WM_DAC_ATTEN_R		0x04
35#define WM_DAC_MASTER		0x05
36#define WM_PHASE_SWAP		0x06	/* DAC phase swap */
37#define WM_DAC_CTRL1		0x07
38#define WM_DAC_MUTE		0x08
39#define WM_DAC_CTRL2		0x09
40#define WM_DAC_INT		0x0a
41#define WM_ADC_INT		0x0b
42#define WM_MASTER_CTRL		0x0c
43#define WM_POWERDOWN		0x0d
44#define WM_ADC_ATTEN_L		0x0e
45#define WM_ADC_ATTEN_R		0x0f
46#define WM_ALC_CTRL1		0x10
47#define WM_ALC_CTRL2		0x11
48#define WM_ALC_CTRL3		0x12
49#define WM_NOISE_GATE		0x13
50#define WM_LIMITER		0x14
51#define WM_ADC_MUX		0x15
52#define WM_OUT_MUX		0x16
53#define WM_RESET		0x17
54
55/*
56 * GPIO
57 */
58#define PONTIS_CS_CS		(1<<4)	/* CS */
59#define PONTIS_CS_CLK		(1<<5)	/* CLK */
60#define PONTIS_CS_RDATA		(1<<6)	/* CS8416 -> VT1720 */
61#define PONTIS_CS_WDATA		(1<<7)	/* VT1720 -> CS8416 */
62
63
64/*
65 * get the current register value of WM codec
66 */
67static unsigned short wm_get(struct snd_ice1712 *ice, int reg)
68{
69	reg <<= 1;
70	return ((unsigned short)ice->akm[0].images[reg] << 8) |
71		ice->akm[0].images[reg + 1];
72}
73
74/*
75 * set the register value of WM codec and remember it
76 */
77static void wm_put_nocache(struct snd_ice1712 *ice, int reg, unsigned short val)
78{
79	unsigned short cval;
80	cval = (reg << 9) | val;
81	snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff);
82}
83
84static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val)
85{
86	wm_put_nocache(ice, reg, val);
87	reg <<= 1;
88	ice->akm[0].images[reg] = val >> 8;
89	ice->akm[0].images[reg + 1] = val;
90}
91
92/*
93 * DAC volume attenuation mixer control (-64dB to 0dB)
94 */
95
96#define DAC_0dB	0xff
97#define DAC_RES	128
98#define DAC_MIN	(DAC_0dB - DAC_RES)
99
100static int wm_dac_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
101{
102	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
103	uinfo->count = 2;
104	uinfo->value.integer.min = 0;	/* mute */
105	uinfo->value.integer.max = DAC_RES;	/* 0dB, 0.5dB step */
106	return 0;
107}
108
109static int wm_dac_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
110{
111	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
112	unsigned short val;
113	int i;
114
115	mutex_lock(&ice->gpio_mutex);
116	for (i = 0; i < 2; i++) {
117		val = wm_get(ice, WM_DAC_ATTEN_L + i) & 0xff;
118		val = val > DAC_MIN ? (val - DAC_MIN) : 0;
119		ucontrol->value.integer.value[i] = val;
120	}
121	mutex_unlock(&ice->gpio_mutex);
122	return 0;
123}
124
125static int wm_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
126{
127	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
128	unsigned short oval, nval;
129	int i, idx, change = 0;
130
131	mutex_lock(&ice->gpio_mutex);
132	for (i = 0; i < 2; i++) {
133		nval = ucontrol->value.integer.value[i];
134		nval = (nval ? (nval + DAC_MIN) : 0) & 0xff;
135		idx = WM_DAC_ATTEN_L + i;
136		oval = wm_get(ice, idx) & 0xff;
137		if (oval != nval) {
138			wm_put(ice, idx, nval);
139			wm_put_nocache(ice, idx, nval | 0x100);
140			change = 1;
141		}
142	}
143	mutex_unlock(&ice->gpio_mutex);
144	return change;
145}
146
147/*
148 * ADC gain mixer control (-64dB to 0dB)
149 */
150
151#define ADC_0dB	0xcf
152#define ADC_RES	128
153#define ADC_MIN	(ADC_0dB - ADC_RES)
154
155static int wm_adc_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
156{
157	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
158	uinfo->count = 2;
159	uinfo->value.integer.min = 0;	/* mute (-64dB) */
160	uinfo->value.integer.max = ADC_RES;	/* 0dB, 0.5dB step */
161	return 0;
162}
163
164static int wm_adc_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
165{
166	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
167	unsigned short val;
168	int i;
169
170	mutex_lock(&ice->gpio_mutex);
171	for (i = 0; i < 2; i++) {
172		val = wm_get(ice, WM_ADC_ATTEN_L + i) & 0xff;
173		val = val > ADC_MIN ? (val - ADC_MIN) : 0;
174		ucontrol->value.integer.value[i] = val;
175	}
176	mutex_unlock(&ice->gpio_mutex);
177	return 0;
178}
179
180static int wm_adc_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
181{
182	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
183	unsigned short ovol, nvol;
184	int i, idx, change = 0;
185
186	mutex_lock(&ice->gpio_mutex);
187	for (i = 0; i < 2; i++) {
188		nvol = ucontrol->value.integer.value[i];
189		nvol = nvol ? (nvol + ADC_MIN) : 0;
190		idx  = WM_ADC_ATTEN_L + i;
191		ovol = wm_get(ice, idx) & 0xff;
192		if (ovol != nvol) {
193			wm_put(ice, idx, nvol);
194			change = 1;
195		}
196	}
197	mutex_unlock(&ice->gpio_mutex);
198	return change;
199}
200
201/*
202 * ADC input mux mixer control
203 */
204#define wm_adc_mux_info		snd_ctl_boolean_mono_info
205
206static int wm_adc_mux_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
207{
208	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
209	int bit = kcontrol->private_value;
210
211	mutex_lock(&ice->gpio_mutex);
212	ucontrol->value.integer.value[0] = (wm_get(ice, WM_ADC_MUX) & (1 << bit)) ? 1 : 0;
213	mutex_unlock(&ice->gpio_mutex);
214	return 0;
215}
216
217static int wm_adc_mux_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
218{
219	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
220	int bit = kcontrol->private_value;
221	unsigned short oval, nval;
222	int change;
223
224	mutex_lock(&ice->gpio_mutex);
225	nval = oval = wm_get(ice, WM_ADC_MUX);
226	if (ucontrol->value.integer.value[0])
227		nval |= (1 << bit);
228	else
229		nval &= ~(1 << bit);
230	change = nval != oval;
231	if (change) {
232		wm_put(ice, WM_ADC_MUX, nval);
233	}
234	mutex_unlock(&ice->gpio_mutex);
235	return change;
236}
237
238/*
239 * Analog bypass (In -> Out)
240 */
241#define wm_bypass_info		snd_ctl_boolean_mono_info
242
243static int wm_bypass_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
244{
245	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
246
247	mutex_lock(&ice->gpio_mutex);
248	ucontrol->value.integer.value[0] = (wm_get(ice, WM_OUT_MUX) & 0x04) ? 1 : 0;
249	mutex_unlock(&ice->gpio_mutex);
250	return 0;
251}
252
253static int wm_bypass_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
254{
255	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
256	unsigned short val, oval;
257	int change = 0;
258
259	mutex_lock(&ice->gpio_mutex);
260	val = oval = wm_get(ice, WM_OUT_MUX);
261	if (ucontrol->value.integer.value[0])
262		val |= 0x04;
263	else
264		val &= ~0x04;
265	if (val != oval) {
266		wm_put(ice, WM_OUT_MUX, val);
267		change = 1;
268	}
269	mutex_unlock(&ice->gpio_mutex);
270	return change;
271}
272
273/*
274 * Left/Right swap
275 */
276#define wm_chswap_info		snd_ctl_boolean_mono_info
277
278static int wm_chswap_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
279{
280	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
281
282	mutex_lock(&ice->gpio_mutex);
283	ucontrol->value.integer.value[0] = (wm_get(ice, WM_DAC_CTRL1) & 0xf0) != 0x90;
284	mutex_unlock(&ice->gpio_mutex);
285	return 0;
286}
287
288static int wm_chswap_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
289{
290	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
291	unsigned short val, oval;
292	int change = 0;
293
294	mutex_lock(&ice->gpio_mutex);
295	oval = wm_get(ice, WM_DAC_CTRL1);
296	val = oval & 0x0f;
297	if (ucontrol->value.integer.value[0])
298		val |= 0x60;
299	else
300		val |= 0x90;
301	if (val != oval) {
302		wm_put(ice, WM_DAC_CTRL1, val);
303		wm_put_nocache(ice, WM_DAC_CTRL1, val);
304		change = 1;
305	}
306	mutex_unlock(&ice->gpio_mutex);
307	return change;
308}
309
310/*
311 * write data in the SPI mode
312 */
313static void set_gpio_bit(struct snd_ice1712 *ice, unsigned int bit, int val)
314{
315	unsigned int tmp = snd_ice1712_gpio_read(ice);
316	if (val)
317		tmp |= bit;
318	else
319		tmp &= ~bit;
320	snd_ice1712_gpio_write(ice, tmp);
321}
322
323static void spi_send_byte(struct snd_ice1712 *ice, unsigned char data)
324{
325	int i;
326	for (i = 0; i < 8; i++) {
327		set_gpio_bit(ice, PONTIS_CS_CLK, 0);
328		udelay(1);
329		set_gpio_bit(ice, PONTIS_CS_WDATA, data & 0x80);
330		udelay(1);
331		set_gpio_bit(ice, PONTIS_CS_CLK, 1);
332		udelay(1);
333		data <<= 1;
334	}
335}
336
337static unsigned int spi_read_byte(struct snd_ice1712 *ice)
338{
339	int i;
340	unsigned int val = 0;
341
342	for (i = 0; i < 8; i++) {
343		val <<= 1;
344		set_gpio_bit(ice, PONTIS_CS_CLK, 0);
345		udelay(1);
346		if (snd_ice1712_gpio_read(ice) & PONTIS_CS_RDATA)
347			val |= 1;
348		udelay(1);
349		set_gpio_bit(ice, PONTIS_CS_CLK, 1);
350		udelay(1);
351	}
352	return val;
353}
354
355
356static void spi_write(struct snd_ice1712 *ice, unsigned int dev, unsigned int reg, unsigned int data)
357{
358	snd_ice1712_gpio_set_dir(ice, PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK);
359	snd_ice1712_gpio_set_mask(ice, ~(PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK));
360	set_gpio_bit(ice, PONTIS_CS_CS, 0);
361	spi_send_byte(ice, dev & ~1); /* WRITE */
362	spi_send_byte(ice, reg); /* MAP */
363	spi_send_byte(ice, data); /* DATA */
364	/* trigger */
365	set_gpio_bit(ice, PONTIS_CS_CS, 1);
366	udelay(1);
367	/* restore */
368	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
369	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
370}
371
372static unsigned int spi_read(struct snd_ice1712 *ice, unsigned int dev, unsigned int reg)
373{
374	unsigned int val;
375	snd_ice1712_gpio_set_dir(ice, PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK);
376	snd_ice1712_gpio_set_mask(ice, ~(PONTIS_CS_CS|PONTIS_CS_WDATA|PONTIS_CS_CLK));
377	set_gpio_bit(ice, PONTIS_CS_CS, 0);
378	spi_send_byte(ice, dev & ~1); /* WRITE */
379	spi_send_byte(ice, reg); /* MAP */
380	/* trigger */
381	set_gpio_bit(ice, PONTIS_CS_CS, 1);
382	udelay(1);
383	set_gpio_bit(ice, PONTIS_CS_CS, 0);
384	spi_send_byte(ice, dev | 1); /* READ */
385	val = spi_read_byte(ice);
386	/* trigger */
387	set_gpio_bit(ice, PONTIS_CS_CS, 1);
388	udelay(1);
389	/* restore */
390	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
391	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
392	return val;
393}
394
395
396/*
397 * SPDIF input source
398 */
399static int cs_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
400{
401	static const char * const texts[] = {
402		"Coax",		/* RXP0 */
403		"Optical",	/* RXP1 */
404		"CD",		/* RXP2 */
405	};
406	return snd_ctl_enum_info(uinfo, 1, 3, texts);
407}
408
409static int cs_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
410{
411	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
412
413	mutex_lock(&ice->gpio_mutex);
414	ucontrol->value.enumerated.item[0] = ice->gpio.saved[0];
415	mutex_unlock(&ice->gpio_mutex);
416	return 0;
417}
418
419static int cs_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
420{
421	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
422	unsigned char val;
423	int change = 0;
424
425	mutex_lock(&ice->gpio_mutex);
426	if (ucontrol->value.enumerated.item[0] != ice->gpio.saved[0]) {
427		ice->gpio.saved[0] = ucontrol->value.enumerated.item[0] & 3;
428		val = 0x80 | (ice->gpio.saved[0] << 3);
429		spi_write(ice, CS_DEV, 0x04, val);
430		change = 1;
431	}
432	mutex_unlock(&ice->gpio_mutex);
433	return change;
434}
435
436
437/*
438 * GPIO controls
439 */
440static int pontis_gpio_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
441{
442	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
443	uinfo->count = 1;
444	uinfo->value.integer.min = 0;
445	uinfo->value.integer.max = 0xffff; /* 16bit */
446	return 0;
447}
448
449static int pontis_gpio_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
450{
451	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
452	mutex_lock(&ice->gpio_mutex);
453	/* 4-7 reserved */
454	ucontrol->value.integer.value[0] = (~ice->gpio.write_mask & 0xffff) | 0x00f0;
455	mutex_unlock(&ice->gpio_mutex);
456	return 0;
457}
458
459static int pontis_gpio_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
460{
461	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
462	unsigned int val;
463	int changed;
464	mutex_lock(&ice->gpio_mutex);
465	/* 4-7 reserved */
466	val = (~ucontrol->value.integer.value[0] & 0xffff) | 0x00f0;
467	changed = val != ice->gpio.write_mask;
468	ice->gpio.write_mask = val;
469	mutex_unlock(&ice->gpio_mutex);
470	return changed;
471}
472
473static int pontis_gpio_dir_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
474{
475	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
476	mutex_lock(&ice->gpio_mutex);
477	/* 4-7 reserved */
478	ucontrol->value.integer.value[0] = ice->gpio.direction & 0xff0f;
479	mutex_unlock(&ice->gpio_mutex);
480	return 0;
481}
482
483static int pontis_gpio_dir_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
484{
485	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
486	unsigned int val;
487	int changed;
488	mutex_lock(&ice->gpio_mutex);
489	/* 4-7 reserved */
490	val = ucontrol->value.integer.value[0] & 0xff0f;
491	changed = (val != ice->gpio.direction);
492	ice->gpio.direction = val;
493	mutex_unlock(&ice->gpio_mutex);
494	return changed;
495}
496
497static int pontis_gpio_data_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
498{
499	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
500	mutex_lock(&ice->gpio_mutex);
501	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
502	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
503	ucontrol->value.integer.value[0] = snd_ice1712_gpio_read(ice) & 0xffff;
504	mutex_unlock(&ice->gpio_mutex);
505	return 0;
506}
507
508static int pontis_gpio_data_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
509{
510	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
511	unsigned int val, nval;
512	int changed = 0;
513	mutex_lock(&ice->gpio_mutex);
514	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
515	snd_ice1712_gpio_set_mask(ice, ice->gpio.write_mask);
516	val = snd_ice1712_gpio_read(ice) & 0xffff;
517	nval = ucontrol->value.integer.value[0] & 0xffff;
518	if (val != nval) {
519		snd_ice1712_gpio_write(ice, nval);
520		changed = 1;
521	}
522	mutex_unlock(&ice->gpio_mutex);
523	return changed;
524}
525
526static const DECLARE_TLV_DB_SCALE(db_scale_volume, -6400, 50, 1);
527
528/*
529 * mixers
530 */
531
532static const struct snd_kcontrol_new pontis_controls[] = {
533	{
534		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
535		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
536			   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
537		.name = "PCM Playback Volume",
538		.info = wm_dac_vol_info,
539		.get = wm_dac_vol_get,
540		.put = wm_dac_vol_put,
541		.tlv = { .p = db_scale_volume },
542	},
543	{
544		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
545		.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
546			   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
547		.name = "Capture Volume",
548		.info = wm_adc_vol_info,
549		.get = wm_adc_vol_get,
550		.put = wm_adc_vol_put,
551		.tlv = { .p = db_scale_volume },
552	},
553	{
554		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
555		.name = "CD Capture Switch",
556		.info = wm_adc_mux_info,
557		.get = wm_adc_mux_get,
558		.put = wm_adc_mux_put,
559		.private_value = 0,
560	},
561	{
562		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
563		.name = "Line Capture Switch",
564		.info = wm_adc_mux_info,
565		.get = wm_adc_mux_get,
566		.put = wm_adc_mux_put,
567		.private_value = 1,
568	},
569	{
570		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
571		.name = "Analog Bypass Switch",
572		.info = wm_bypass_info,
573		.get = wm_bypass_get,
574		.put = wm_bypass_put,
575	},
576	{
577		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
578		.name = "Swap Output Channels",
579		.info = wm_chswap_info,
580		.get = wm_chswap_get,
581		.put = wm_chswap_put,
582	},
583	{
584		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
585		.name = "IEC958 Input Source",
586		.info = cs_source_info,
587		.get = cs_source_get,
588		.put = cs_source_put,
589	},
590	/* FIXME: which interface? */
591	{
592		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
593		.name = "GPIO Mask",
594		.info = pontis_gpio_mask_info,
595		.get = pontis_gpio_mask_get,
596		.put = pontis_gpio_mask_put,
597	},
598	{
599		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
600		.name = "GPIO Direction",
601		.info = pontis_gpio_mask_info,
602		.get = pontis_gpio_dir_get,
603		.put = pontis_gpio_dir_put,
604	},
605	{
606		.iface = SNDRV_CTL_ELEM_IFACE_CARD,
607		.name = "GPIO Data",
608		.info = pontis_gpio_mask_info,
609		.get = pontis_gpio_data_get,
610		.put = pontis_gpio_data_put,
611	},
612};
613
614
615/*
616 * WM codec registers
617 */
618static void wm_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
619{
620	struct snd_ice1712 *ice = entry->private_data;
621	char line[64];
622	unsigned int reg, val;
623	mutex_lock(&ice->gpio_mutex);
624	while (!snd_info_get_line(buffer, line, sizeof(line))) {
625		if (sscanf(line, "%x %x", &reg, &val) != 2)
626			continue;
627		if (reg <= 0x17 && val <= 0xffff)
628			wm_put(ice, reg, val);
629	}
630	mutex_unlock(&ice->gpio_mutex);
631}
632
633static void wm_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
634{
635	struct snd_ice1712 *ice = entry->private_data;
636	int reg, val;
637
638	mutex_lock(&ice->gpio_mutex);
639	for (reg = 0; reg <= 0x17; reg++) {
640		val = wm_get(ice, reg);
641		snd_iprintf(buffer, "%02x = %04x\n", reg, val);
642	}
643	mutex_unlock(&ice->gpio_mutex);
644}
645
646static void wm_proc_init(struct snd_ice1712 *ice)
647{
648	snd_card_rw_proc_new(ice->card, "wm_codec", ice, wm_proc_regs_read,
649			     wm_proc_regs_write);
650}
651
652static void cs_proc_regs_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
653{
654	struct snd_ice1712 *ice = entry->private_data;
655	int reg, val;
656
657	mutex_lock(&ice->gpio_mutex);
658	for (reg = 0; reg <= 0x26; reg++) {
659		val = spi_read(ice, CS_DEV, reg);
660		snd_iprintf(buffer, "%02x = %02x\n", reg, val);
661	}
662	val = spi_read(ice, CS_DEV, 0x7f);
663	snd_iprintf(buffer, "%02x = %02x\n", 0x7f, val);
664	mutex_unlock(&ice->gpio_mutex);
665}
666
667static void cs_proc_init(struct snd_ice1712 *ice)
668{
669	snd_card_ro_proc_new(ice->card, "cs_codec", ice, cs_proc_regs_read);
670}
671
672
673static int pontis_add_controls(struct snd_ice1712 *ice)
674{
675	unsigned int i;
676	int err;
677
678	for (i = 0; i < ARRAY_SIZE(pontis_controls); i++) {
679		err = snd_ctl_add(ice->card, snd_ctl_new1(&pontis_controls[i], ice));
680		if (err < 0)
681			return err;
682	}
683
684	wm_proc_init(ice);
685	cs_proc_init(ice);
686
687	return 0;
688}
689
690
691/*
692 * initialize the chip
693 */
694static int pontis_init(struct snd_ice1712 *ice)
695{
696	static const unsigned short wm_inits[] = {
697		/* These come first to reduce init pop noise */
698		WM_ADC_MUX,	0x00c0,	/* ADC mute */
699		WM_DAC_MUTE,	0x0001,	/* DAC softmute */
700		WM_DAC_CTRL1,	0x0000,	/* DAC mute */
701
702		WM_POWERDOWN,	0x0008,	/* All power-up except HP */
703		WM_RESET,	0x0000,	/* reset */
704	};
705	static const unsigned short wm_inits2[] = {
706		WM_MASTER_CTRL,	0x0022,	/* 256fs, slave mode */
707		WM_DAC_INT,	0x0022,	/* I2S, normal polarity, 24bit */
708		WM_ADC_INT,	0x0022,	/* I2S, normal polarity, 24bit */
709		WM_DAC_CTRL1,	0x0090,	/* DAC L/R */
710		WM_OUT_MUX,	0x0001,	/* OUT DAC */
711		WM_HP_ATTEN_L,	0x0179,	/* HP 0dB */
712		WM_HP_ATTEN_R,	0x0179,	/* HP 0dB */
713		WM_DAC_ATTEN_L,	0x0000,	/* DAC 0dB */
714		WM_DAC_ATTEN_L,	0x0100,	/* DAC 0dB */
715		WM_DAC_ATTEN_R,	0x0000,	/* DAC 0dB */
716		WM_DAC_ATTEN_R,	0x0100,	/* DAC 0dB */
717		/* WM_DAC_MASTER,	0x0100, */	/* DAC master muted */
718		WM_PHASE_SWAP,	0x0000,	/* phase normal */
719		WM_DAC_CTRL2,	0x0000,	/* no deemphasis, no ZFLG */
720		WM_ADC_ATTEN_L,	0x0000,	/* ADC muted */
721		WM_ADC_ATTEN_R,	0x0000,	/* ADC muted */
722#if 0
723		WM_ALC_CTRL1,	0x007b,	/* */
724		WM_ALC_CTRL2,	0x0000,	/* */
725		WM_ALC_CTRL3,	0x0000,	/* */
726		WM_NOISE_GATE,	0x0000,	/* */
727#endif
728		WM_DAC_MUTE,	0x0000,	/* DAC unmute */
729		WM_ADC_MUX,	0x0003,	/* ADC unmute, both CD/Line On */
730	};
731	static const unsigned char cs_inits[] = {
732		0x04,	0x80,	/* RUN, RXP0 */
733		0x05,	0x05,	/* slave, 24bit */
734		0x01,	0x00,
735		0x02,	0x00,
736		0x03,	0x00,
737	};
738	unsigned int i;
739
740	ice->vt1720 = 1;
741	ice->num_total_dacs = 2;
742	ice->num_total_adcs = 2;
743
744	/* to remember the register values */
745	ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
746	if (! ice->akm)
747		return -ENOMEM;
748	ice->akm_codecs = 1;
749
750	/* HACK - use this as the SPDIF source.
751	 * don't call snd_ice1712_gpio_get/put(), otherwise it's overwritten
752	 */
753	ice->gpio.saved[0] = 0;
754
755	/* initialize WM8776 codec */
756	for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
757		wm_put(ice, wm_inits[i], wm_inits[i+1]);
758	schedule_timeout_uninterruptible(1);
759	for (i = 0; i < ARRAY_SIZE(wm_inits2); i += 2)
760		wm_put(ice, wm_inits2[i], wm_inits2[i+1]);
761
762	/* initialize CS8416 codec */
763	/* assert PRST#; MT05 bit 7 */
764	outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
765	mdelay(5);
766	/* deassert PRST# */
767	outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));
768
769	for (i = 0; i < ARRAY_SIZE(cs_inits); i += 2)
770		spi_write(ice, CS_DEV, cs_inits[i], cs_inits[i+1]);
771
772	return 0;
773}
774
775
776/*
777 * Pontis boards don't provide the EEPROM data at all.
778 * hence the driver needs to sets up it properly.
779 */
780
781static const unsigned char pontis_eeprom[] = {
782	[ICE_EEP2_SYSCONF]     = 0x08,	/* clock 256, mpu401, spdif-in/ADC, 1DAC */
783	[ICE_EEP2_ACLINK]      = 0x80,	/* I2S */
784	[ICE_EEP2_I2S]         = 0xf8,	/* vol, 96k, 24bit, 192k */
785	[ICE_EEP2_SPDIF]       = 0xc3,	/* out-en, out-int, spdif-in */
786	[ICE_EEP2_GPIO_DIR]    = 0x07,
787	[ICE_EEP2_GPIO_DIR1]   = 0x00,
788	[ICE_EEP2_GPIO_DIR2]   = 0x00,	/* ignored */
789	[ICE_EEP2_GPIO_MASK]   = 0x0f,	/* 4-7 reserved for CS8416 */
790	[ICE_EEP2_GPIO_MASK1]  = 0xff,
791	[ICE_EEP2_GPIO_MASK2]  = 0x00,	/* ignored */
792	[ICE_EEP2_GPIO_STATE]  = 0x06,	/* 0-low, 1-high, 2-high */
793	[ICE_EEP2_GPIO_STATE1] = 0x00,
794	[ICE_EEP2_GPIO_STATE2] = 0x00,	/* ignored */
795};
796
797/* entry point */
798struct snd_ice1712_card_info snd_vt1720_pontis_cards[] = {
799	{
800		.subvendor = VT1720_SUBDEVICE_PONTIS_MS300,
801		.name = "Pontis MS300",
802		.model = "ms300",
803		.chip_init = pontis_init,
804		.build_controls = pontis_add_controls,
805		.eeprom_size = sizeof(pontis_eeprom),
806		.eeprom_data = pontis_eeprom,
807	},
808	{ } /* terminator */
809};
810