xref: /linux/sound/i2c/other/ak4xxx-adda.c (revision c7546e2c3cb739a3c1a2f5acaf9bb629d401afe5)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *   ALSA driver for AK4524 / AK4528 / AK4529 / AK4355 / AK4358 / AK4381
4  *   AD and DA converters
5  *
6  *	Copyright (c) 2000-2004 Jaroslav Kysela <perex@perex.cz>,
7  *				Takashi Iwai <tiwai@suse.de>
8  */
9 
10 #include <linux/io.h>
11 #include <linux/delay.h>
12 #include <linux/interrupt.h>
13 #include <linux/init.h>
14 #include <linux/module.h>
15 #include <sound/core.h>
16 #include <sound/control.h>
17 #include <sound/tlv.h>
18 #include <sound/ak4xxx-adda.h>
19 #include <sound/info.h>
20 
21 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>");
22 MODULE_DESCRIPTION("Routines for control of AK452x / AK43xx  AD/DA converters");
23 MODULE_LICENSE("GPL");
24 
25 /* write the given register and save the data to the cache */
26 void snd_akm4xxx_write(struct snd_akm4xxx *ak, int chip, unsigned char reg,
27 		       unsigned char val)
28 {
29 	ak->ops.lock(ak, chip);
30 	ak->ops.write(ak, chip, reg, val);
31 
32 	/* save the data */
33 	snd_akm4xxx_set(ak, chip, reg, val);
34 	ak->ops.unlock(ak, chip);
35 }
36 
37 EXPORT_SYMBOL(snd_akm4xxx_write);
38 
39 /* reset procedure for AK4524 and AK4528 */
40 static void ak4524_reset(struct snd_akm4xxx *ak, int state)
41 {
42 	unsigned int chip;
43 	unsigned char reg;
44 
45 	for (chip = 0; chip < ak->num_dacs/2; chip++) {
46 		snd_akm4xxx_write(ak, chip, 0x01, state ? 0x00 : 0x03);
47 		if (state)
48 			continue;
49 		/* DAC volumes */
50 		for (reg = 0x04; reg < ak->total_regs; reg++)
51 			snd_akm4xxx_write(ak, chip, reg,
52 					  snd_akm4xxx_get(ak, chip, reg));
53 	}
54 }
55 
56 /* reset procedure for AK4355 and AK4358 */
57 static void ak435X_reset(struct snd_akm4xxx *ak, int state)
58 {
59 	unsigned char reg;
60 
61 	if (state) {
62 		snd_akm4xxx_write(ak, 0, 0x01, 0x02); /* reset and soft-mute */
63 		return;
64 	}
65 	for (reg = 0x00; reg < ak->total_regs; reg++)
66 		if (reg != 0x01)
67 			snd_akm4xxx_write(ak, 0, reg,
68 					  snd_akm4xxx_get(ak, 0, reg));
69 	snd_akm4xxx_write(ak, 0, 0x01, 0x01); /* un-reset, unmute */
70 }
71 
72 /* reset procedure for AK4381 */
73 static void ak4381_reset(struct snd_akm4xxx *ak, int state)
74 {
75 	unsigned int chip;
76 	unsigned char reg;
77 	for (chip = 0; chip < ak->num_dacs/2; chip++) {
78 		snd_akm4xxx_write(ak, chip, 0x00, state ? 0x0c : 0x0f);
79 		if (state)
80 			continue;
81 		for (reg = 0x01; reg < ak->total_regs; reg++)
82 			snd_akm4xxx_write(ak, chip, reg,
83 					  snd_akm4xxx_get(ak, chip, reg));
84 	}
85 }
86 
87 /*
88  * reset the AKM codecs
89  * @state: 1 = reset codec, 0 = restore the registers
90  *
91  * assert the reset operation and restores the register values to the chips.
92  */
93 void snd_akm4xxx_reset(struct snd_akm4xxx *ak, int state)
94 {
95 	switch (ak->type) {
96 	case SND_AK4524:
97 	case SND_AK4528:
98 	case SND_AK4620:
99 		ak4524_reset(ak, state);
100 		break;
101 	case SND_AK4529:
102 		/* FIXME: needed for ak4529? */
103 		break;
104 	case SND_AK4355:
105 		ak435X_reset(ak, state);
106 		break;
107 	case SND_AK4358:
108 		ak435X_reset(ak, state);
109 		break;
110 	case SND_AK4381:
111 		ak4381_reset(ak, state);
112 		break;
113 	default:
114 		break;
115 	}
116 }
117 
118 EXPORT_SYMBOL(snd_akm4xxx_reset);
119 
120 
121 /*
122  * Volume conversion table for non-linear volumes
123  * from -63.5dB (mute) to 0dB step 0.5dB
124  *
125  * Used for AK4524/AK4620 input/ouput attenuation, AK4528, and
126  * AK5365 input attenuation
127  */
128 static const unsigned char vol_cvt_datt[128] = {
129 	0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04,
130 	0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x06, 0x06,
131 	0x06, 0x07, 0x07, 0x08, 0x08, 0x08, 0x09, 0x0a,
132 	0x0a, 0x0b, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x0f,
133 	0x10, 0x10, 0x11, 0x12, 0x12, 0x13, 0x13, 0x14,
134 	0x15, 0x16, 0x17, 0x17, 0x18, 0x19, 0x1a, 0x1c,
135 	0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x23,
136 	0x24, 0x25, 0x26, 0x28, 0x29, 0x2a, 0x2b, 0x2d,
137 	0x2e, 0x30, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
138 	0x37, 0x38, 0x39, 0x3b, 0x3c, 0x3e, 0x3f, 0x40,
139 	0x41, 0x42, 0x43, 0x44, 0x46, 0x47, 0x48, 0x4a,
140 	0x4b, 0x4d, 0x4e, 0x50, 0x51, 0x52, 0x53, 0x54,
141 	0x55, 0x56, 0x58, 0x59, 0x5b, 0x5c, 0x5e, 0x5f,
142 	0x60, 0x61, 0x62, 0x64, 0x65, 0x66, 0x67, 0x69,
143 	0x6a, 0x6c, 0x6d, 0x6f, 0x70, 0x71, 0x72, 0x73,
144 	0x75, 0x76, 0x77, 0x79, 0x7a, 0x7c, 0x7d, 0x7f,
145 };
146 
147 /*
148  * dB tables
149  */
150 static const DECLARE_TLV_DB_SCALE(db_scale_vol_datt, -6350, 50, 1);
151 static const DECLARE_TLV_DB_SCALE(db_scale_8bit, -12750, 50, 1);
152 static const DECLARE_TLV_DB_SCALE(db_scale_7bit, -6350, 50, 1);
153 static const DECLARE_TLV_DB_LINEAR(db_scale_linear, TLV_DB_GAIN_MUTE, 0);
154 
155 /*
156  * initialize all the ak4xxx chips
157  */
158 void snd_akm4xxx_init(struct snd_akm4xxx *ak)
159 {
160 	static const unsigned char inits_ak4524[] = {
161 		0x00, 0x07, /* 0: all power up */
162 		0x01, 0x00, /* 1: ADC/DAC reset */
163 		0x02, 0x60, /* 2: 24bit I2S */
164 		0x03, 0x19, /* 3: deemphasis off */
165 		0x01, 0x03, /* 1: ADC/DAC enable */
166 		0x04, 0x00, /* 4: ADC left muted */
167 		0x05, 0x00, /* 5: ADC right muted */
168 		0x06, 0x00, /* 6: DAC left muted */
169 		0x07, 0x00, /* 7: DAC right muted */
170 		0xff, 0xff
171 	};
172 	static const unsigned char inits_ak4528[] = {
173 		0x00, 0x07, /* 0: all power up */
174 		0x01, 0x00, /* 1: ADC/DAC reset */
175 		0x02, 0x60, /* 2: 24bit I2S */
176 		0x03, 0x0d, /* 3: deemphasis off, turn LR highpass filters on */
177 		0x01, 0x03, /* 1: ADC/DAC enable */
178 		0x04, 0x00, /* 4: ADC left muted */
179 		0x05, 0x00, /* 5: ADC right muted */
180 		0xff, 0xff
181 	};
182 	static const unsigned char inits_ak4529[] = {
183 		0x09, 0x01, /* 9: ATS=0, RSTN=1 */
184 		0x0a, 0x3f, /* A: all power up, no zero/overflow detection */
185 		0x00, 0x0c, /* 0: TDM=0, 24bit I2S, SMUTE=0 */
186 		0x01, 0x00, /* 1: ACKS=0, ADC, loop off */
187 		0x02, 0xff, /* 2: LOUT1 muted */
188 		0x03, 0xff, /* 3: ROUT1 muted */
189 		0x04, 0xff, /* 4: LOUT2 muted */
190 		0x05, 0xff, /* 5: ROUT2 muted */
191 		0x06, 0xff, /* 6: LOUT3 muted */
192 		0x07, 0xff, /* 7: ROUT3 muted */
193 		0x0b, 0xff, /* B: LOUT4 muted */
194 		0x0c, 0xff, /* C: ROUT4 muted */
195 		0x08, 0x55, /* 8: deemphasis all off */
196 		0xff, 0xff
197 	};
198 	static const unsigned char inits_ak4355[] = {
199 		0x01, 0x02, /* 1: reset and soft-mute */
200 		0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect,
201 			     * disable DZF, sharp roll-off, RSTN#=0 */
202 		0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */
203 		// 0x02, 0x2e, /* quad speed */
204 		0x03, 0x01, /* 3: de-emphasis off */
205 		0x04, 0x00, /* 4: LOUT1 volume muted */
206 		0x05, 0x00, /* 5: ROUT1 volume muted */
207 		0x06, 0x00, /* 6: LOUT2 volume muted */
208 		0x07, 0x00, /* 7: ROUT2 volume muted */
209 		0x08, 0x00, /* 8: LOUT3 volume muted */
210 		0x09, 0x00, /* 9: ROUT3 volume muted */
211 		0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
212 		0x01, 0x01, /* 1: un-reset, unmute */
213 		0xff, 0xff
214 	};
215 	static const unsigned char inits_ak4358[] = {
216 		0x01, 0x02, /* 1: reset and soft-mute */
217 		0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect,
218 			     * disable DZF, sharp roll-off, RSTN#=0 */
219 		0x02, 0x4e, /* 2: DA's power up, normal speed, RSTN#=0 */
220 		/* 0x02, 0x6e,*/ /* quad speed */
221 		0x03, 0x01, /* 3: de-emphasis off */
222 		0x04, 0x00, /* 4: LOUT1 volume muted */
223 		0x05, 0x00, /* 5: ROUT1 volume muted */
224 		0x06, 0x00, /* 6: LOUT2 volume muted */
225 		0x07, 0x00, /* 7: ROUT2 volume muted */
226 		0x08, 0x00, /* 8: LOUT3 volume muted */
227 		0x09, 0x00, /* 9: ROUT3 volume muted */
228 		0x0b, 0x00, /* b: LOUT4 volume muted */
229 		0x0c, 0x00, /* c: ROUT4 volume muted */
230 		0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
231 		0x01, 0x01, /* 1: un-reset, unmute */
232 		0xff, 0xff
233 	};
234 	static const unsigned char inits_ak4381[] = {
235 		0x00, 0x0c, /* 0: mode3(i2s), disable auto-clock detect */
236 		0x01, 0x02, /* 1: de-emphasis off, normal speed,
237 			     * sharp roll-off, DZF off */
238 		// 0x01, 0x12, /* quad speed */
239 		0x02, 0x00, /* 2: DZF disabled */
240 		0x03, 0x00, /* 3: LATT 0 */
241 		0x04, 0x00, /* 4: RATT 0 */
242 		0x00, 0x0f, /* 0: power-up, un-reset */
243 		0xff, 0xff
244 	};
245 	static const unsigned char inits_ak4620[] = {
246 		0x00, 0x07, /* 0: normal */
247 		0x01, 0x00, /* 0: reset */
248 		0x01, 0x02, /* 1: RSTAD */
249 		0x01, 0x03, /* 1: RSTDA */
250 		0x01, 0x0f, /* 1: normal */
251 		0x02, 0x60, /* 2: 24bit I2S */
252 		0x03, 0x01, /* 3: deemphasis off */
253 		0x04, 0x00, /* 4: LIN muted */
254 		0x05, 0x00, /* 5: RIN muted */
255 		0x06, 0x00, /* 6: LOUT muted */
256 		0x07, 0x00, /* 7: ROUT muted */
257 		0xff, 0xff
258 	};
259 
260 	int chip;
261 	const unsigned char *ptr, *inits;
262 	unsigned char reg, data;
263 
264 	memset(ak->images, 0, sizeof(ak->images));
265 	memset(ak->volumes, 0, sizeof(ak->volumes));
266 
267 	switch (ak->type) {
268 	case SND_AK4524:
269 		inits = inits_ak4524;
270 		ak->num_chips = ak->num_dacs / 2;
271 		ak->name = "ak4524";
272 		ak->total_regs = 0x08;
273 		break;
274 	case SND_AK4528:
275 		inits = inits_ak4528;
276 		ak->num_chips = ak->num_dacs / 2;
277 		ak->name = "ak4528";
278 		ak->total_regs = 0x06;
279 		break;
280 	case SND_AK4529:
281 		inits = inits_ak4529;
282 		ak->num_chips = 1;
283 		ak->name = "ak4529";
284 		ak->total_regs = 0x0d;
285 		break;
286 	case SND_AK4355:
287 		inits = inits_ak4355;
288 		ak->num_chips = 1;
289 		ak->name = "ak4355";
290 		ak->total_regs = 0x0b;
291 		break;
292 	case SND_AK4358:
293 		inits = inits_ak4358;
294 		ak->num_chips = 1;
295 		ak->name = "ak4358";
296 		ak->total_regs = 0x10;
297 		break;
298 	case SND_AK4381:
299 		inits = inits_ak4381;
300 		ak->num_chips = ak->num_dacs / 2;
301 		ak->name = "ak4381";
302 		ak->total_regs = 0x05;
303 		break;
304 	case SND_AK5365:
305 		/* FIXME: any init sequence? */
306 		ak->num_chips = 1;
307 		ak->name = "ak5365";
308 		ak->total_regs = 0x08;
309 		return;
310 	case SND_AK4620:
311 		inits = inits_ak4620;
312 		ak->num_chips = ak->num_dacs / 2;
313 		ak->name = "ak4620";
314 		ak->total_regs = 0x08;
315 		break;
316 	default:
317 		snd_BUG();
318 		return;
319 	}
320 
321 	for (chip = 0; chip < ak->num_chips; chip++) {
322 		ptr = inits;
323 		while (*ptr != 0xff) {
324 			reg = *ptr++;
325 			data = *ptr++;
326 			snd_akm4xxx_write(ak, chip, reg, data);
327 			udelay(10);
328 		}
329 	}
330 }
331 
332 EXPORT_SYMBOL(snd_akm4xxx_init);
333 
334 /*
335  * Mixer callbacks
336  */
337 #define AK_IPGA 			(1<<20)	/* including IPGA */
338 #define AK_VOL_CVT 			(1<<21)	/* need dB conversion */
339 #define AK_NEEDSMSB 			(1<<22)	/* need MSB update bit */
340 #define AK_INVERT 			(1<<23)	/* data is inverted */
341 #define AK_GET_CHIP(val)		(((val) >> 8) & 0xff)
342 #define AK_GET_ADDR(val)		((val) & 0xff)
343 #define AK_GET_SHIFT(val)		(((val) >> 16) & 0x0f)
344 #define AK_GET_VOL_CVT(val)		(((val) >> 21) & 1)
345 #define AK_GET_IPGA(val)		(((val) >> 20) & 1)
346 #define AK_GET_NEEDSMSB(val)		(((val) >> 22) & 1)
347 #define AK_GET_INVERT(val)		(((val) >> 23) & 1)
348 #define AK_GET_MASK(val)		(((val) >> 24) & 0xff)
349 #define AK_COMPOSE(chip,addr,shift,mask) \
350 	(((chip) << 8) | (addr) | ((shift) << 16) | ((mask) << 24))
351 
352 static int snd_akm4xxx_volume_info(struct snd_kcontrol *kcontrol,
353 				   struct snd_ctl_elem_info *uinfo)
354 {
355 	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
356 
357 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
358 	uinfo->count = 1;
359 	uinfo->value.integer.min = 0;
360 	uinfo->value.integer.max = mask;
361 	return 0;
362 }
363 
364 static int snd_akm4xxx_volume_get(struct snd_kcontrol *kcontrol,
365 				  struct snd_ctl_elem_value *ucontrol)
366 {
367 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
368 	int chip = AK_GET_CHIP(kcontrol->private_value);
369 	int addr = AK_GET_ADDR(kcontrol->private_value);
370 
371 	ucontrol->value.integer.value[0] = snd_akm4xxx_get_vol(ak, chip, addr);
372 	return 0;
373 }
374 
375 static int put_ak_reg(struct snd_kcontrol *kcontrol, int addr,
376 		      unsigned char nval)
377 {
378 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
379 	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
380 	int chip = AK_GET_CHIP(kcontrol->private_value);
381 
382 	if (snd_akm4xxx_get_vol(ak, chip, addr) == nval)
383 		return 0;
384 
385 	snd_akm4xxx_set_vol(ak, chip, addr, nval);
386 	if (AK_GET_VOL_CVT(kcontrol->private_value) && nval < 128)
387 		nval = vol_cvt_datt[nval];
388 	if (AK_GET_IPGA(kcontrol->private_value) && nval >= 128)
389 		nval++; /* need to correct + 1 since both 127 and 128 are 0dB */
390 	if (AK_GET_INVERT(kcontrol->private_value))
391 		nval = mask - nval;
392 	if (AK_GET_NEEDSMSB(kcontrol->private_value))
393 		nval |= 0x80;
394 	snd_akm4xxx_write(ak, chip, addr, nval);
395 	return 1;
396 }
397 
398 static int snd_akm4xxx_volume_put(struct snd_kcontrol *kcontrol,
399 				  struct snd_ctl_elem_value *ucontrol)
400 {
401 	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
402 	unsigned int val = ucontrol->value.integer.value[0];
403 	if (val > mask)
404 		return -EINVAL;
405 	return put_ak_reg(kcontrol, AK_GET_ADDR(kcontrol->private_value), val);
406 }
407 
408 static int snd_akm4xxx_stereo_volume_info(struct snd_kcontrol *kcontrol,
409 					  struct snd_ctl_elem_info *uinfo)
410 {
411 	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
412 
413 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
414 	uinfo->count = 2;
415 	uinfo->value.integer.min = 0;
416 	uinfo->value.integer.max = mask;
417 	return 0;
418 }
419 
420 static int snd_akm4xxx_stereo_volume_get(struct snd_kcontrol *kcontrol,
421 					 struct snd_ctl_elem_value *ucontrol)
422 {
423 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
424 	int chip = AK_GET_CHIP(kcontrol->private_value);
425 	int addr = AK_GET_ADDR(kcontrol->private_value);
426 
427 	ucontrol->value.integer.value[0] = snd_akm4xxx_get_vol(ak, chip, addr);
428 	ucontrol->value.integer.value[1] = snd_akm4xxx_get_vol(ak, chip, addr+1);
429 	return 0;
430 }
431 
432 static int snd_akm4xxx_stereo_volume_put(struct snd_kcontrol *kcontrol,
433 					 struct snd_ctl_elem_value *ucontrol)
434 {
435 	int addr = AK_GET_ADDR(kcontrol->private_value);
436 	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
437 	unsigned int val[2];
438 	int change;
439 
440 	val[0] = ucontrol->value.integer.value[0];
441 	val[1] = ucontrol->value.integer.value[1];
442 	if (val[0] > mask || val[1] > mask)
443 		return -EINVAL;
444 	change = put_ak_reg(kcontrol, addr, val[0]);
445 	change |= put_ak_reg(kcontrol, addr + 1, val[1]);
446 	return change;
447 }
448 
449 static int snd_akm4xxx_deemphasis_info(struct snd_kcontrol *kcontrol,
450 				       struct snd_ctl_elem_info *uinfo)
451 {
452 	static const char * const texts[4] = {
453 		"44.1kHz", "Off", "48kHz", "32kHz",
454 	};
455 	return snd_ctl_enum_info(uinfo, 1, 4, texts);
456 }
457 
458 static int snd_akm4xxx_deemphasis_get(struct snd_kcontrol *kcontrol,
459 				      struct snd_ctl_elem_value *ucontrol)
460 {
461 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
462 	int chip = AK_GET_CHIP(kcontrol->private_value);
463 	int addr = AK_GET_ADDR(kcontrol->private_value);
464 	int shift = AK_GET_SHIFT(kcontrol->private_value);
465 	ucontrol->value.enumerated.item[0] =
466 		(snd_akm4xxx_get(ak, chip, addr) >> shift) & 3;
467 	return 0;
468 }
469 
470 static int snd_akm4xxx_deemphasis_put(struct snd_kcontrol *kcontrol,
471 				      struct snd_ctl_elem_value *ucontrol)
472 {
473 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
474 	int chip = AK_GET_CHIP(kcontrol->private_value);
475 	int addr = AK_GET_ADDR(kcontrol->private_value);
476 	int shift = AK_GET_SHIFT(kcontrol->private_value);
477 	unsigned char nval = ucontrol->value.enumerated.item[0] & 3;
478 	int change;
479 
480 	nval = (nval << shift) |
481 		(snd_akm4xxx_get(ak, chip, addr) & ~(3 << shift));
482 	change = snd_akm4xxx_get(ak, chip, addr) != nval;
483 	if (change)
484 		snd_akm4xxx_write(ak, chip, addr, nval);
485 	return change;
486 }
487 
488 #define ak4xxx_switch_info	snd_ctl_boolean_mono_info
489 
490 static int ak4xxx_switch_get(struct snd_kcontrol *kcontrol,
491 			     struct snd_ctl_elem_value *ucontrol)
492 {
493 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
494 	int chip = AK_GET_CHIP(kcontrol->private_value);
495 	int addr = AK_GET_ADDR(kcontrol->private_value);
496 	int shift = AK_GET_SHIFT(kcontrol->private_value);
497 	int invert = AK_GET_INVERT(kcontrol->private_value);
498 	/* we observe the (1<<shift) bit only */
499 	unsigned char val = snd_akm4xxx_get(ak, chip, addr) & (1<<shift);
500 	if (invert)
501 		val = ! val;
502 	ucontrol->value.integer.value[0] = (val & (1<<shift)) != 0;
503 	return 0;
504 }
505 
506 static int ak4xxx_switch_put(struct snd_kcontrol *kcontrol,
507 			     struct snd_ctl_elem_value *ucontrol)
508 {
509 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
510 	int chip = AK_GET_CHIP(kcontrol->private_value);
511 	int addr = AK_GET_ADDR(kcontrol->private_value);
512 	int shift = AK_GET_SHIFT(kcontrol->private_value);
513 	int invert = AK_GET_INVERT(kcontrol->private_value);
514 	long flag = ucontrol->value.integer.value[0];
515 	unsigned char val, oval;
516 	int change;
517 
518 	if (invert)
519 		flag = ! flag;
520 	oval = snd_akm4xxx_get(ak, chip, addr);
521 	if (flag)
522 		val = oval | (1<<shift);
523 	else
524 		val = oval & ~(1<<shift);
525 	change = (oval != val);
526 	if (change)
527 		snd_akm4xxx_write(ak, chip, addr, val);
528 	return change;
529 }
530 
531 #define AK5365_NUM_INPUTS 5
532 
533 static int ak4xxx_capture_num_inputs(struct snd_akm4xxx *ak, int mixer_ch)
534 {
535 	int num_names;
536 	const char **input_names;
537 
538 	input_names = ak->adc_info[mixer_ch].input_names;
539 	num_names = 0;
540 	while (num_names < AK5365_NUM_INPUTS && input_names[num_names])
541 		++num_names;
542 	return num_names;
543 }
544 
545 static int ak4xxx_capture_source_info(struct snd_kcontrol *kcontrol,
546 				      struct snd_ctl_elem_info *uinfo)
547 {
548 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
549 	int mixer_ch = AK_GET_SHIFT(kcontrol->private_value);
550 	unsigned int num_names;
551 
552 	num_names = ak4xxx_capture_num_inputs(ak, mixer_ch);
553 	if (!num_names)
554 		return -EINVAL;
555 	return snd_ctl_enum_info(uinfo, 1, num_names,
556 				 ak->adc_info[mixer_ch].input_names);
557 }
558 
559 static int ak4xxx_capture_source_get(struct snd_kcontrol *kcontrol,
560 				     struct snd_ctl_elem_value *ucontrol)
561 {
562 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
563 	int chip = AK_GET_CHIP(kcontrol->private_value);
564 	int addr = AK_GET_ADDR(kcontrol->private_value);
565 	int mask = AK_GET_MASK(kcontrol->private_value);
566 	unsigned char val;
567 
568 	val = snd_akm4xxx_get(ak, chip, addr) & mask;
569 	ucontrol->value.enumerated.item[0] = val;
570 	return 0;
571 }
572 
573 static int ak4xxx_capture_source_put(struct snd_kcontrol *kcontrol,
574 				     struct snd_ctl_elem_value *ucontrol)
575 {
576 	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
577 	int mixer_ch = AK_GET_SHIFT(kcontrol->private_value);
578 	int chip = AK_GET_CHIP(kcontrol->private_value);
579 	int addr = AK_GET_ADDR(kcontrol->private_value);
580 	int mask = AK_GET_MASK(kcontrol->private_value);
581 	unsigned char oval, val;
582 	int num_names = ak4xxx_capture_num_inputs(ak, mixer_ch);
583 
584 	if (ucontrol->value.enumerated.item[0] >= num_names)
585 		return -EINVAL;
586 
587 	oval = snd_akm4xxx_get(ak, chip, addr);
588 	val = oval & ~mask;
589 	val |= ucontrol->value.enumerated.item[0] & mask;
590 	if (val != oval) {
591 		snd_akm4xxx_write(ak, chip, addr, val);
592 		return 1;
593 	}
594 	return 0;
595 }
596 
597 /*
598  * build AK4xxx controls
599  */
600 
601 static int build_dac_controls(struct snd_akm4xxx *ak)
602 {
603 	int idx, err, mixer_ch, num_stereo;
604 	struct snd_kcontrol_new knew;
605 
606 	mixer_ch = 0;
607 	for (idx = 0; idx < ak->num_dacs; ) {
608 		/* mute control for Revolution 7.1 - AK4381 */
609 		if (ak->type == SND_AK4381
610 				&&  ak->dac_info[mixer_ch].switch_name) {
611 			memset(&knew, 0, sizeof(knew));
612 			knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
613 			knew.count = 1;
614 			knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
615 			knew.name = ak->dac_info[mixer_ch].switch_name;
616 			knew.info = ak4xxx_switch_info;
617 			knew.get = ak4xxx_switch_get;
618 			knew.put = ak4xxx_switch_put;
619 			knew.access = 0;
620 			/* register 1, bit 0 (SMUTE): 0 = normal operation,
621 			   1 = mute */
622 			knew.private_value =
623 				AK_COMPOSE(idx/2, 1, 0, 0) | AK_INVERT;
624 			err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
625 			if (err < 0)
626 				return err;
627 		}
628 		memset(&knew, 0, sizeof(knew));
629 		if (! ak->dac_info || ! ak->dac_info[mixer_ch].name) {
630 			knew.name = "DAC Volume";
631 			knew.index = mixer_ch + ak->idx_offset * 2;
632 			num_stereo = 1;
633 		} else {
634 			knew.name = ak->dac_info[mixer_ch].name;
635 			num_stereo = ak->dac_info[mixer_ch].num_channels;
636 		}
637 		knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
638 		knew.count = 1;
639 		knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
640 			SNDRV_CTL_ELEM_ACCESS_TLV_READ;
641 		if (num_stereo == 2) {
642 			knew.info = snd_akm4xxx_stereo_volume_info;
643 			knew.get = snd_akm4xxx_stereo_volume_get;
644 			knew.put = snd_akm4xxx_stereo_volume_put;
645 		} else {
646 			knew.info = snd_akm4xxx_volume_info;
647 			knew.get = snd_akm4xxx_volume_get;
648 			knew.put = snd_akm4xxx_volume_put;
649 		}
650 		switch (ak->type) {
651 		case SND_AK4524:
652 			/* register 6 & 7 */
653 			knew.private_value =
654 				AK_COMPOSE(idx/2, (idx%2) + 6, 0, 127) |
655 				AK_VOL_CVT;
656 			knew.tlv.p = db_scale_vol_datt;
657 			break;
658 		case SND_AK4528:
659 			/* register 4 & 5 */
660 			knew.private_value =
661 				AK_COMPOSE(idx/2, (idx%2) + 4, 0, 127) |
662 				AK_VOL_CVT;
663 			knew.tlv.p = db_scale_vol_datt;
664 			break;
665 		case SND_AK4529: {
666 			/* registers 2-7 and b,c */
667 			int val = idx < 6 ? idx + 2 : (idx - 6) + 0xb;
668 			knew.private_value =
669 				AK_COMPOSE(0, val, 0, 255) | AK_INVERT;
670 			knew.tlv.p = db_scale_8bit;
671 			break;
672 		}
673 		case SND_AK4355:
674 			/* register 4-9, chip #0 only */
675 			knew.private_value = AK_COMPOSE(0, idx + 4, 0, 255);
676 			knew.tlv.p = db_scale_8bit;
677 			break;
678 		case SND_AK4358: {
679 			/* register 4-9 and 11-12, chip #0 only */
680 			int  addr = idx < 6 ? idx + 4 : idx + 5;
681 			knew.private_value =
682 				AK_COMPOSE(0, addr, 0, 127) | AK_NEEDSMSB;
683 			knew.tlv.p = db_scale_7bit;
684 			break;
685 		}
686 		case SND_AK4381:
687 			/* register 3 & 4 */
688 			knew.private_value =
689 				AK_COMPOSE(idx/2, (idx%2) + 3, 0, 255);
690 			knew.tlv.p = db_scale_linear;
691 			break;
692 		case SND_AK4620:
693 			/* register 6 & 7 */
694 			knew.private_value =
695 				AK_COMPOSE(idx/2, (idx%2) + 6, 0, 255);
696 			knew.tlv.p = db_scale_linear;
697 			break;
698 		default:
699 			return -EINVAL;
700 		}
701 
702 		err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
703 		if (err < 0)
704 			return err;
705 
706 		idx += num_stereo;
707 		mixer_ch++;
708 	}
709 	return 0;
710 }
711 
712 static int build_adc_controls(struct snd_akm4xxx *ak)
713 {
714 	int idx, err, mixer_ch, num_stereo, max_steps;
715 	struct snd_kcontrol_new knew;
716 
717 	mixer_ch = 0;
718 	if (ak->type == SND_AK4528)
719 		return 0;	/* no controls */
720 	for (idx = 0; idx < ak->num_adcs;) {
721 		memset(&knew, 0, sizeof(knew));
722 		if (! ak->adc_info || ! ak->adc_info[mixer_ch].name) {
723 			knew.name = "ADC Volume";
724 			knew.index = mixer_ch + ak->idx_offset * 2;
725 			num_stereo = 1;
726 		} else {
727 			knew.name = ak->adc_info[mixer_ch].name;
728 			num_stereo = ak->adc_info[mixer_ch].num_channels;
729 		}
730 		knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
731 		knew.count = 1;
732 		knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
733 			SNDRV_CTL_ELEM_ACCESS_TLV_READ;
734 		if (num_stereo == 2) {
735 			knew.info = snd_akm4xxx_stereo_volume_info;
736 			knew.get = snd_akm4xxx_stereo_volume_get;
737 			knew.put = snd_akm4xxx_stereo_volume_put;
738 		} else {
739 			knew.info = snd_akm4xxx_volume_info;
740 			knew.get = snd_akm4xxx_volume_get;
741 			knew.put = snd_akm4xxx_volume_put;
742 		}
743 		/* register 4 & 5 */
744 		if (ak->type == SND_AK5365)
745 			max_steps = 152;
746 		else
747 			max_steps = 164;
748 		knew.private_value =
749 			AK_COMPOSE(idx/2, (idx%2) + 4, 0, max_steps) |
750 			AK_VOL_CVT | AK_IPGA;
751 		knew.tlv.p = db_scale_vol_datt;
752 		err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
753 		if (err < 0)
754 			return err;
755 
756 		if (ak->type == SND_AK5365 && (idx % 2) == 0) {
757 			if (! ak->adc_info ||
758 			    ! ak->adc_info[mixer_ch].switch_name) {
759 				knew.name = "Capture Switch";
760 				knew.index = mixer_ch + ak->idx_offset * 2;
761 			} else
762 				knew.name = ak->adc_info[mixer_ch].switch_name;
763 			knew.info = ak4xxx_switch_info;
764 			knew.get = ak4xxx_switch_get;
765 			knew.put = ak4xxx_switch_put;
766 			knew.access = 0;
767 			/* register 2, bit 0 (SMUTE): 0 = normal operation,
768 			   1 = mute */
769 			knew.private_value =
770 				AK_COMPOSE(idx/2, 2, 0, 0) | AK_INVERT;
771 			err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
772 			if (err < 0)
773 				return err;
774 
775 			memset(&knew, 0, sizeof(knew));
776 			if (!ak->adc_info ||
777 				!ak->adc_info[mixer_ch].selector_name) {
778 				knew.name = "Capture Channel";
779 				knew.index = mixer_ch + ak->idx_offset * 2;
780 			} else
781 				knew.name = ak->adc_info[mixer_ch].selector_name;
782 
783 			knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
784 			knew.info = ak4xxx_capture_source_info;
785 			knew.get = ak4xxx_capture_source_get;
786 			knew.put = ak4xxx_capture_source_put;
787 			knew.access = 0;
788 			/* input selector control: reg. 1, bits 0-2.
789 			 * mis-use 'shift' to pass mixer_ch */
790 			knew.private_value
791 				= AK_COMPOSE(idx/2, 1, mixer_ch, 0x07);
792 			err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
793 			if (err < 0)
794 				return err;
795 		}
796 
797 		idx += num_stereo;
798 		mixer_ch++;
799 	}
800 	return 0;
801 }
802 
803 static int build_deemphasis(struct snd_akm4xxx *ak, int num_emphs)
804 {
805 	int idx, err;
806 	struct snd_kcontrol_new knew;
807 
808 	for (idx = 0; idx < num_emphs; idx++) {
809 		memset(&knew, 0, sizeof(knew));
810 		knew.name = "Deemphasis";
811 		knew.index = idx + ak->idx_offset;
812 		knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
813 		knew.count = 1;
814 		knew.info = snd_akm4xxx_deemphasis_info;
815 		knew.get = snd_akm4xxx_deemphasis_get;
816 		knew.put = snd_akm4xxx_deemphasis_put;
817 		switch (ak->type) {
818 		case SND_AK4524:
819 		case SND_AK4528:
820 		case SND_AK4620:
821 			/* register 3 */
822 			knew.private_value = AK_COMPOSE(idx, 3, 0, 0);
823 			break;
824 		case SND_AK4529: {
825 			int shift = idx == 3 ? 6 : (2 - idx) * 2;
826 			/* register 8 with shift */
827 			knew.private_value = AK_COMPOSE(0, 8, shift, 0);
828 			break;
829 		}
830 		case SND_AK4355:
831 		case SND_AK4358:
832 			knew.private_value = AK_COMPOSE(idx, 3, 0, 0);
833 			break;
834 		case SND_AK4381:
835 			knew.private_value = AK_COMPOSE(idx, 1, 1, 0);
836 			break;
837 		default:
838 			return -EINVAL;
839 		}
840 		err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak));
841 		if (err < 0)
842 			return err;
843 	}
844 	return 0;
845 }
846 
847 static void proc_regs_read(struct snd_info_entry *entry,
848 		struct snd_info_buffer *buffer)
849 {
850 	struct snd_akm4xxx *ak = entry->private_data;
851 	int reg, val, chip;
852 	for (chip = 0; chip < ak->num_chips; chip++) {
853 		for (reg = 0; reg < ak->total_regs; reg++) {
854 			val =  snd_akm4xxx_get(ak, chip, reg);
855 			snd_iprintf(buffer, "chip %d: 0x%02x = 0x%02x\n", chip,
856 					reg, val);
857 		}
858 	}
859 }
860 
861 static int proc_init(struct snd_akm4xxx *ak)
862 {
863 	return snd_card_ro_proc_new(ak->card, ak->name, ak, proc_regs_read);
864 }
865 
866 int snd_akm4xxx_build_controls(struct snd_akm4xxx *ak)
867 {
868 	int err, num_emphs;
869 
870 	err = build_dac_controls(ak);
871 	if (err < 0)
872 		return err;
873 
874 	err = build_adc_controls(ak);
875 	if (err < 0)
876 		return err;
877 	if (ak->type == SND_AK4355 || ak->type == SND_AK4358)
878 		num_emphs = 1;
879 	else if (ak->type == SND_AK4620)
880 		num_emphs = 0;
881 	else
882 		num_emphs = ak->num_dacs / 2;
883 	err = build_deemphasis(ak, num_emphs);
884 	if (err < 0)
885 		return err;
886 	err = proc_init(ak);
887 	if (err < 0)
888 		return err;
889 
890 	return 0;
891 }
892 EXPORT_SYMBOL(snd_akm4xxx_build_controls);
893