xref: /openbmc/linux/sound/soc/codecs/twl4030.c (revision 82003e04)
1 /*
2  * ALSA SoC TWL4030 codec driver
3  *
4  * Author:      Steve Sakoman, <steve@sakoman.com>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * version 2 as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18  * 02110-1301 USA
19  *
20  */
21 
22 #include <linux/module.h>
23 #include <linux/moduleparam.h>
24 #include <linux/init.h>
25 #include <linux/delay.h>
26 #include <linux/pm.h>
27 #include <linux/i2c.h>
28 #include <linux/platform_device.h>
29 #include <linux/of.h>
30 #include <linux/of_gpio.h>
31 #include <linux/i2c/twl.h>
32 #include <linux/slab.h>
33 #include <linux/gpio.h>
34 #include <sound/core.h>
35 #include <sound/pcm.h>
36 #include <sound/pcm_params.h>
37 #include <sound/soc.h>
38 #include <sound/initval.h>
39 #include <sound/tlv.h>
40 
41 /* Register descriptions are here */
42 #include <linux/mfd/twl4030-audio.h>
43 
44 /* TWL4030 PMBR1 Register */
45 #define TWL4030_PMBR1_REG		0x0D
46 /* TWL4030 PMBR1 Register GPIO6 mux bits */
47 #define TWL4030_GPIO6_PWM0_MUTE(value)	((value & 0x03) << 2)
48 
49 #define TWL4030_CACHEREGNUM	(TWL4030_REG_MISC_SET_2 + 1)
50 
51 /* codec private data */
52 struct twl4030_priv {
53 	unsigned int codec_powered;
54 
55 	/* reference counts of AIF/APLL users */
56 	unsigned int apll_enabled;
57 
58 	struct snd_pcm_substream *master_substream;
59 	struct snd_pcm_substream *slave_substream;
60 
61 	unsigned int configured;
62 	unsigned int rate;
63 	unsigned int sample_bits;
64 	unsigned int channels;
65 
66 	unsigned int sysclk;
67 
68 	/* Output (with associated amp) states */
69 	u8 hsl_enabled, hsr_enabled;
70 	u8 earpiece_enabled;
71 	u8 predrivel_enabled, predriver_enabled;
72 	u8 carkitl_enabled, carkitr_enabled;
73 	u8 ctl_cache[TWL4030_REG_PRECKR_CTL - TWL4030_REG_EAR_CTL + 1];
74 
75 	struct twl4030_codec_data *pdata;
76 };
77 
78 static void tw4030_init_ctl_cache(struct twl4030_priv *twl4030)
79 {
80 	int i;
81 	u8 byte;
82 
83 	for (i = TWL4030_REG_EAR_CTL; i <= TWL4030_REG_PRECKR_CTL; i++) {
84 		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, i);
85 		twl4030->ctl_cache[i - TWL4030_REG_EAR_CTL] = byte;
86 	}
87 }
88 
89 static unsigned int twl4030_read(struct snd_soc_codec *codec, unsigned int reg)
90 {
91 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
92 	u8 value = 0;
93 
94 	if (reg >= TWL4030_CACHEREGNUM)
95 		return -EIO;
96 
97 	switch (reg) {
98 	case TWL4030_REG_EAR_CTL:
99 	case TWL4030_REG_PREDL_CTL:
100 	case TWL4030_REG_PREDR_CTL:
101 	case TWL4030_REG_PRECKL_CTL:
102 	case TWL4030_REG_PRECKR_CTL:
103 	case TWL4030_REG_HS_GAIN_SET:
104 		value = twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL];
105 		break;
106 	default:
107 		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &value, reg);
108 		break;
109 	}
110 
111 	return value;
112 }
113 
114 static bool twl4030_can_write_to_chip(struct twl4030_priv *twl4030,
115 				      unsigned int reg)
116 {
117 	bool write_to_reg = false;
118 
119 	/* Decide if the given register can be written */
120 	switch (reg) {
121 	case TWL4030_REG_EAR_CTL:
122 		if (twl4030->earpiece_enabled)
123 			write_to_reg = true;
124 		break;
125 	case TWL4030_REG_PREDL_CTL:
126 		if (twl4030->predrivel_enabled)
127 			write_to_reg = true;
128 		break;
129 	case TWL4030_REG_PREDR_CTL:
130 		if (twl4030->predriver_enabled)
131 			write_to_reg = true;
132 		break;
133 	case TWL4030_REG_PRECKL_CTL:
134 		if (twl4030->carkitl_enabled)
135 			write_to_reg = true;
136 		break;
137 	case TWL4030_REG_PRECKR_CTL:
138 		if (twl4030->carkitr_enabled)
139 			write_to_reg = true;
140 		break;
141 	case TWL4030_REG_HS_GAIN_SET:
142 		if (twl4030->hsl_enabled || twl4030->hsr_enabled)
143 			write_to_reg = true;
144 		break;
145 	default:
146 		/* All other register can be written */
147 		write_to_reg = true;
148 		break;
149 	}
150 
151 	return write_to_reg;
152 }
153 
154 static int twl4030_write(struct snd_soc_codec *codec, unsigned int reg,
155 			 unsigned int value)
156 {
157 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
158 
159 	/* Update the ctl cache */
160 	switch (reg) {
161 	case TWL4030_REG_EAR_CTL:
162 	case TWL4030_REG_PREDL_CTL:
163 	case TWL4030_REG_PREDR_CTL:
164 	case TWL4030_REG_PRECKL_CTL:
165 	case TWL4030_REG_PRECKR_CTL:
166 	case TWL4030_REG_HS_GAIN_SET:
167 		twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL] = value;
168 		break;
169 	default:
170 		break;
171 	}
172 
173 	if (twl4030_can_write_to_chip(twl4030, reg))
174 		return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg);
175 
176 	return 0;
177 }
178 
179 static inline void twl4030_wait_ms(int time)
180 {
181 	if (time < 60) {
182 		time *= 1000;
183 		usleep_range(time, time + 500);
184 	} else {
185 		msleep(time);
186 	}
187 }
188 
189 static void twl4030_codec_enable(struct snd_soc_codec *codec, int enable)
190 {
191 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
192 	int mode;
193 
194 	if (enable == twl4030->codec_powered)
195 		return;
196 
197 	if (enable)
198 		mode = twl4030_audio_enable_resource(TWL4030_AUDIO_RES_POWER);
199 	else
200 		mode = twl4030_audio_disable_resource(TWL4030_AUDIO_RES_POWER);
201 
202 	if (mode >= 0)
203 		twl4030->codec_powered = enable;
204 
205 	/* REVISIT: this delay is present in TI sample drivers */
206 	/* but there seems to be no TRM requirement for it     */
207 	udelay(10);
208 }
209 
210 static void twl4030_setup_pdata_of(struct twl4030_codec_data *pdata,
211 				   struct device_node *node)
212 {
213 	int value;
214 
215 	of_property_read_u32(node, "ti,digimic_delay",
216 			     &pdata->digimic_delay);
217 	of_property_read_u32(node, "ti,ramp_delay_value",
218 			     &pdata->ramp_delay_value);
219 	of_property_read_u32(node, "ti,offset_cncl_path",
220 			     &pdata->offset_cncl_path);
221 	if (!of_property_read_u32(node, "ti,hs_extmute", &value))
222 		pdata->hs_extmute = value;
223 
224 	pdata->hs_extmute_gpio = of_get_named_gpio(node,
225 						   "ti,hs_extmute_gpio", 0);
226 	if (gpio_is_valid(pdata->hs_extmute_gpio))
227 		pdata->hs_extmute = 1;
228 }
229 
230 static struct twl4030_codec_data *twl4030_get_pdata(struct snd_soc_codec *codec)
231 {
232 	struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev);
233 	struct device_node *twl4030_codec_node = NULL;
234 
235 	twl4030_codec_node = of_find_node_by_name(codec->dev->parent->of_node,
236 						  "codec");
237 
238 	if (!pdata && twl4030_codec_node) {
239 		pdata = devm_kzalloc(codec->dev,
240 				     sizeof(struct twl4030_codec_data),
241 				     GFP_KERNEL);
242 		if (!pdata) {
243 			dev_err(codec->dev, "Can not allocate memory\n");
244 			return NULL;
245 		}
246 		twl4030_setup_pdata_of(pdata, twl4030_codec_node);
247 	}
248 
249 	return pdata;
250 }
251 
252 static void twl4030_init_chip(struct snd_soc_codec *codec)
253 {
254 	struct twl4030_codec_data *pdata;
255 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
256 	u8 reg, byte;
257 	int i = 0;
258 
259 	pdata = twl4030_get_pdata(codec);
260 
261 	if (pdata && pdata->hs_extmute) {
262 		if (gpio_is_valid(pdata->hs_extmute_gpio)) {
263 			int ret;
264 
265 			if (!pdata->hs_extmute_gpio)
266 				dev_warn(codec->dev,
267 					"Extmute GPIO is 0 is this correct?\n");
268 
269 			ret = gpio_request_one(pdata->hs_extmute_gpio,
270 					       GPIOF_OUT_INIT_LOW,
271 					       "hs_extmute");
272 			if (ret) {
273 				dev_err(codec->dev,
274 					"Failed to get hs_extmute GPIO\n");
275 				pdata->hs_extmute_gpio = -1;
276 			}
277 		} else {
278 			u8 pin_mux;
279 
280 			/* Set TWL4030 GPIO6 as EXTMUTE signal */
281 			twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux,
282 					TWL4030_PMBR1_REG);
283 			pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03);
284 			pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02);
285 			twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux,
286 					 TWL4030_PMBR1_REG);
287 		}
288 	}
289 
290 	/* Initialize the local ctl register cache */
291 	tw4030_init_ctl_cache(twl4030);
292 
293 	/* anti-pop when changing analog gain */
294 	reg = twl4030_read(codec, TWL4030_REG_MISC_SET_1);
295 	twl4030_write(codec, TWL4030_REG_MISC_SET_1,
296 		      reg | TWL4030_SMOOTH_ANAVOL_EN);
297 
298 	twl4030_write(codec, TWL4030_REG_OPTION,
299 		      TWL4030_ATXL1_EN | TWL4030_ATXR1_EN |
300 		      TWL4030_ARXL2_EN | TWL4030_ARXR2_EN);
301 
302 	/* REG_ARXR2_APGA_CTL reset according to the TRM: 0dB, DA_EN */
303 	twl4030_write(codec, TWL4030_REG_ARXR2_APGA_CTL, 0x32);
304 
305 	/* Machine dependent setup */
306 	if (!pdata)
307 		return;
308 
309 	twl4030->pdata = pdata;
310 
311 	reg = twl4030_read(codec, TWL4030_REG_HS_POPN_SET);
312 	reg &= ~TWL4030_RAMP_DELAY;
313 	reg |= (pdata->ramp_delay_value << 2);
314 	twl4030_write(codec, TWL4030_REG_HS_POPN_SET, reg);
315 
316 	/* initiate offset cancellation */
317 	twl4030_codec_enable(codec, 1);
318 
319 	reg = twl4030_read(codec, TWL4030_REG_ANAMICL);
320 	reg &= ~TWL4030_OFFSET_CNCL_SEL;
321 	reg |= pdata->offset_cncl_path;
322 	twl4030_write(codec, TWL4030_REG_ANAMICL,
323 		      reg | TWL4030_CNCL_OFFSET_START);
324 
325 	/*
326 	 * Wait for offset cancellation to complete.
327 	 * Since this takes a while, do not slam the i2c.
328 	 * Start polling the status after ~20ms.
329 	 */
330 	msleep(20);
331 	do {
332 		usleep_range(1000, 2000);
333 		twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, true);
334 		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte,
335 				TWL4030_REG_ANAMICL);
336 		twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, false);
337 	} while ((i++ < 100) &&
338 		 ((byte & TWL4030_CNCL_OFFSET_START) ==
339 		  TWL4030_CNCL_OFFSET_START));
340 
341 	twl4030_codec_enable(codec, 0);
342 }
343 
344 static void twl4030_apll_enable(struct snd_soc_codec *codec, int enable)
345 {
346 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
347 
348 	if (enable) {
349 		twl4030->apll_enabled++;
350 		if (twl4030->apll_enabled == 1)
351 			twl4030_audio_enable_resource(
352 							TWL4030_AUDIO_RES_APLL);
353 	} else {
354 		twl4030->apll_enabled--;
355 		if (!twl4030->apll_enabled)
356 			twl4030_audio_disable_resource(
357 							TWL4030_AUDIO_RES_APLL);
358 	}
359 }
360 
361 /* Earpiece */
362 static const struct snd_kcontrol_new twl4030_dapm_earpiece_controls[] = {
363 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_EAR_CTL, 0, 1, 0),
364 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_EAR_CTL, 1, 1, 0),
365 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_EAR_CTL, 2, 1, 0),
366 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_EAR_CTL, 3, 1, 0),
367 };
368 
369 /* PreDrive Left */
370 static const struct snd_kcontrol_new twl4030_dapm_predrivel_controls[] = {
371 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDL_CTL, 0, 1, 0),
372 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PREDL_CTL, 1, 1, 0),
373 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDL_CTL, 2, 1, 0),
374 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDL_CTL, 3, 1, 0),
375 };
376 
377 /* PreDrive Right */
378 static const struct snd_kcontrol_new twl4030_dapm_predriver_controls[] = {
379 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDR_CTL, 0, 1, 0),
380 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PREDR_CTL, 1, 1, 0),
381 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDR_CTL, 2, 1, 0),
382 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDR_CTL, 3, 1, 0),
383 };
384 
385 /* Headset Left */
386 static const struct snd_kcontrol_new twl4030_dapm_hsol_controls[] = {
387 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 0, 1, 0),
388 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_HS_SEL, 1, 1, 0),
389 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_HS_SEL, 2, 1, 0),
390 };
391 
392 /* Headset Right */
393 static const struct snd_kcontrol_new twl4030_dapm_hsor_controls[] = {
394 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 3, 1, 0),
395 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_HS_SEL, 4, 1, 0),
396 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_HS_SEL, 5, 1, 0),
397 };
398 
399 /* Carkit Left */
400 static const struct snd_kcontrol_new twl4030_dapm_carkitl_controls[] = {
401 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKL_CTL, 0, 1, 0),
402 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PRECKL_CTL, 1, 1, 0),
403 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PRECKL_CTL, 2, 1, 0),
404 };
405 
406 /* Carkit Right */
407 static const struct snd_kcontrol_new twl4030_dapm_carkitr_controls[] = {
408 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKR_CTL, 0, 1, 0),
409 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PRECKR_CTL, 1, 1, 0),
410 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PRECKR_CTL, 2, 1, 0),
411 };
412 
413 /* Handsfree Left */
414 static const char *twl4030_handsfreel_texts[] =
415 		{"Voice", "AudioL1", "AudioL2", "AudioR2"};
416 
417 static SOC_ENUM_SINGLE_DECL(twl4030_handsfreel_enum,
418 			    TWL4030_REG_HFL_CTL, 0,
419 			    twl4030_handsfreel_texts);
420 
421 static const struct snd_kcontrol_new twl4030_dapm_handsfreel_control =
422 SOC_DAPM_ENUM("Route", twl4030_handsfreel_enum);
423 
424 /* Handsfree Left virtual mute */
425 static const struct snd_kcontrol_new twl4030_dapm_handsfreelmute_control =
426 	SOC_DAPM_SINGLE_VIRT("Switch", 1);
427 
428 /* Handsfree Right */
429 static const char *twl4030_handsfreer_texts[] =
430 		{"Voice", "AudioR1", "AudioR2", "AudioL2"};
431 
432 static SOC_ENUM_SINGLE_DECL(twl4030_handsfreer_enum,
433 			    TWL4030_REG_HFR_CTL, 0,
434 			    twl4030_handsfreer_texts);
435 
436 static const struct snd_kcontrol_new twl4030_dapm_handsfreer_control =
437 SOC_DAPM_ENUM("Route", twl4030_handsfreer_enum);
438 
439 /* Handsfree Right virtual mute */
440 static const struct snd_kcontrol_new twl4030_dapm_handsfreermute_control =
441 	SOC_DAPM_SINGLE_VIRT("Switch", 1);
442 
443 /* Vibra */
444 /* Vibra audio path selection */
445 static const char *twl4030_vibra_texts[] =
446 		{"AudioL1", "AudioR1", "AudioL2", "AudioR2"};
447 
448 static SOC_ENUM_SINGLE_DECL(twl4030_vibra_enum,
449 			    TWL4030_REG_VIBRA_CTL, 2,
450 			    twl4030_vibra_texts);
451 
452 static const struct snd_kcontrol_new twl4030_dapm_vibra_control =
453 SOC_DAPM_ENUM("Route", twl4030_vibra_enum);
454 
455 /* Vibra path selection: local vibrator (PWM) or audio driven */
456 static const char *twl4030_vibrapath_texts[] =
457 		{"Local vibrator", "Audio"};
458 
459 static SOC_ENUM_SINGLE_DECL(twl4030_vibrapath_enum,
460 			    TWL4030_REG_VIBRA_CTL, 4,
461 			    twl4030_vibrapath_texts);
462 
463 static const struct snd_kcontrol_new twl4030_dapm_vibrapath_control =
464 SOC_DAPM_ENUM("Route", twl4030_vibrapath_enum);
465 
466 /* Left analog microphone selection */
467 static const struct snd_kcontrol_new twl4030_dapm_analoglmic_controls[] = {
468 	SOC_DAPM_SINGLE("Main Mic Capture Switch",
469 			TWL4030_REG_ANAMICL, 0, 1, 0),
470 	SOC_DAPM_SINGLE("Headset Mic Capture Switch",
471 			TWL4030_REG_ANAMICL, 1, 1, 0),
472 	SOC_DAPM_SINGLE("AUXL Capture Switch",
473 			TWL4030_REG_ANAMICL, 2, 1, 0),
474 	SOC_DAPM_SINGLE("Carkit Mic Capture Switch",
475 			TWL4030_REG_ANAMICL, 3, 1, 0),
476 };
477 
478 /* Right analog microphone selection */
479 static const struct snd_kcontrol_new twl4030_dapm_analogrmic_controls[] = {
480 	SOC_DAPM_SINGLE("Sub Mic Capture Switch", TWL4030_REG_ANAMICR, 0, 1, 0),
481 	SOC_DAPM_SINGLE("AUXR Capture Switch", TWL4030_REG_ANAMICR, 2, 1, 0),
482 };
483 
484 /* TX1 L/R Analog/Digital microphone selection */
485 static const char *twl4030_micpathtx1_texts[] =
486 		{"Analog", "Digimic0"};
487 
488 static SOC_ENUM_SINGLE_DECL(twl4030_micpathtx1_enum,
489 			    TWL4030_REG_ADCMICSEL, 0,
490 			    twl4030_micpathtx1_texts);
491 
492 static const struct snd_kcontrol_new twl4030_dapm_micpathtx1_control =
493 SOC_DAPM_ENUM("Route", twl4030_micpathtx1_enum);
494 
495 /* TX2 L/R Analog/Digital microphone selection */
496 static const char *twl4030_micpathtx2_texts[] =
497 		{"Analog", "Digimic1"};
498 
499 static SOC_ENUM_SINGLE_DECL(twl4030_micpathtx2_enum,
500 			    TWL4030_REG_ADCMICSEL, 2,
501 			    twl4030_micpathtx2_texts);
502 
503 static const struct snd_kcontrol_new twl4030_dapm_micpathtx2_control =
504 SOC_DAPM_ENUM("Route", twl4030_micpathtx2_enum);
505 
506 /* Analog bypass for AudioR1 */
507 static const struct snd_kcontrol_new twl4030_dapm_abypassr1_control =
508 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR1_APGA_CTL, 2, 1, 0);
509 
510 /* Analog bypass for AudioL1 */
511 static const struct snd_kcontrol_new twl4030_dapm_abypassl1_control =
512 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL1_APGA_CTL, 2, 1, 0);
513 
514 /* Analog bypass for AudioR2 */
515 static const struct snd_kcontrol_new twl4030_dapm_abypassr2_control =
516 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR2_APGA_CTL, 2, 1, 0);
517 
518 /* Analog bypass for AudioL2 */
519 static const struct snd_kcontrol_new twl4030_dapm_abypassl2_control =
520 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL2_APGA_CTL, 2, 1, 0);
521 
522 /* Analog bypass for Voice */
523 static const struct snd_kcontrol_new twl4030_dapm_abypassv_control =
524 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_VDL_APGA_CTL, 2, 1, 0);
525 
526 /* Digital bypass gain, mute instead of -30dB */
527 static const DECLARE_TLV_DB_RANGE(twl4030_dapm_dbypass_tlv,
528 	0, 1, TLV_DB_SCALE_ITEM(-3000, 600, 1),
529 	2, 3, TLV_DB_SCALE_ITEM(-2400, 0, 0),
530 	4, 7, TLV_DB_SCALE_ITEM(-1800, 600, 0)
531 );
532 
533 /* Digital bypass left (TX1L -> RX2L) */
534 static const struct snd_kcontrol_new twl4030_dapm_dbypassl_control =
535 	SOC_DAPM_SINGLE_TLV("Volume",
536 			TWL4030_REG_ATX2ARXPGA, 3, 7, 0,
537 			twl4030_dapm_dbypass_tlv);
538 
539 /* Digital bypass right (TX1R -> RX2R) */
540 static const struct snd_kcontrol_new twl4030_dapm_dbypassr_control =
541 	SOC_DAPM_SINGLE_TLV("Volume",
542 			TWL4030_REG_ATX2ARXPGA, 0, 7, 0,
543 			twl4030_dapm_dbypass_tlv);
544 
545 /*
546  * Voice Sidetone GAIN volume control:
547  * from -51 to -10 dB in 1 dB steps (mute instead of -51 dB)
548  */
549 static DECLARE_TLV_DB_SCALE(twl4030_dapm_dbypassv_tlv, -5100, 100, 1);
550 
551 /* Digital bypass voice: sidetone (VUL -> VDL)*/
552 static const struct snd_kcontrol_new twl4030_dapm_dbypassv_control =
553 	SOC_DAPM_SINGLE_TLV("Volume",
554 			TWL4030_REG_VSTPGA, 0, 0x29, 0,
555 			twl4030_dapm_dbypassv_tlv);
556 
557 /*
558  * Output PGA builder:
559  * Handle the muting and unmuting of the given output (turning off the
560  * amplifier associated with the output pin)
561  * On mute bypass the reg_cache and write 0 to the register
562  * On unmute: restore the register content from the reg_cache
563  * Outputs handled in this way:  Earpiece, PreDrivL/R, CarkitL/R
564  */
565 #define TWL4030_OUTPUT_PGA(pin_name, reg, mask)				\
566 static int pin_name##pga_event(struct snd_soc_dapm_widget *w,		\
567 			       struct snd_kcontrol *kcontrol, int event) \
568 {									\
569 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);	\
570 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec); \
571 									\
572 	switch (event) {						\
573 	case SND_SOC_DAPM_POST_PMU:					\
574 		twl4030->pin_name##_enabled = 1;			\
575 		twl4030_write(codec, reg, twl4030_read(codec, reg));	\
576 		break;							\
577 	case SND_SOC_DAPM_POST_PMD:					\
578 		twl4030->pin_name##_enabled = 0;			\
579 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, 0, reg);	\
580 		break;							\
581 	}								\
582 	return 0;							\
583 }
584 
585 TWL4030_OUTPUT_PGA(earpiece, TWL4030_REG_EAR_CTL, TWL4030_EAR_GAIN);
586 TWL4030_OUTPUT_PGA(predrivel, TWL4030_REG_PREDL_CTL, TWL4030_PREDL_GAIN);
587 TWL4030_OUTPUT_PGA(predriver, TWL4030_REG_PREDR_CTL, TWL4030_PREDR_GAIN);
588 TWL4030_OUTPUT_PGA(carkitl, TWL4030_REG_PRECKL_CTL, TWL4030_PRECKL_GAIN);
589 TWL4030_OUTPUT_PGA(carkitr, TWL4030_REG_PRECKR_CTL, TWL4030_PRECKR_GAIN);
590 
591 static void handsfree_ramp(struct snd_soc_codec *codec, int reg, int ramp)
592 {
593 	unsigned char hs_ctl;
594 
595 	hs_ctl = twl4030_read(codec, reg);
596 
597 	if (ramp) {
598 		/* HF ramp-up */
599 		hs_ctl |= TWL4030_HF_CTL_REF_EN;
600 		twl4030_write(codec, reg, hs_ctl);
601 		udelay(10);
602 		hs_ctl |= TWL4030_HF_CTL_RAMP_EN;
603 		twl4030_write(codec, reg, hs_ctl);
604 		udelay(40);
605 		hs_ctl |= TWL4030_HF_CTL_LOOP_EN;
606 		hs_ctl |= TWL4030_HF_CTL_HB_EN;
607 		twl4030_write(codec, reg, hs_ctl);
608 	} else {
609 		/* HF ramp-down */
610 		hs_ctl &= ~TWL4030_HF_CTL_LOOP_EN;
611 		hs_ctl &= ~TWL4030_HF_CTL_HB_EN;
612 		twl4030_write(codec, reg, hs_ctl);
613 		hs_ctl &= ~TWL4030_HF_CTL_RAMP_EN;
614 		twl4030_write(codec, reg, hs_ctl);
615 		udelay(40);
616 		hs_ctl &= ~TWL4030_HF_CTL_REF_EN;
617 		twl4030_write(codec, reg, hs_ctl);
618 	}
619 }
620 
621 static int handsfreelpga_event(struct snd_soc_dapm_widget *w,
622 			       struct snd_kcontrol *kcontrol, int event)
623 {
624 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
625 
626 	switch (event) {
627 	case SND_SOC_DAPM_POST_PMU:
628 		handsfree_ramp(codec, TWL4030_REG_HFL_CTL, 1);
629 		break;
630 	case SND_SOC_DAPM_POST_PMD:
631 		handsfree_ramp(codec, TWL4030_REG_HFL_CTL, 0);
632 		break;
633 	}
634 	return 0;
635 }
636 
637 static int handsfreerpga_event(struct snd_soc_dapm_widget *w,
638 			       struct snd_kcontrol *kcontrol, int event)
639 {
640 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
641 
642 	switch (event) {
643 	case SND_SOC_DAPM_POST_PMU:
644 		handsfree_ramp(codec, TWL4030_REG_HFR_CTL, 1);
645 		break;
646 	case SND_SOC_DAPM_POST_PMD:
647 		handsfree_ramp(codec, TWL4030_REG_HFR_CTL, 0);
648 		break;
649 	}
650 	return 0;
651 }
652 
653 static int vibramux_event(struct snd_soc_dapm_widget *w,
654 			  struct snd_kcontrol *kcontrol, int event)
655 {
656 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
657 
658 	twl4030_write(codec, TWL4030_REG_VIBRA_SET, 0xff);
659 	return 0;
660 }
661 
662 static int apll_event(struct snd_soc_dapm_widget *w,
663 		      struct snd_kcontrol *kcontrol, int event)
664 {
665 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
666 
667 	switch (event) {
668 	case SND_SOC_DAPM_PRE_PMU:
669 		twl4030_apll_enable(codec, 1);
670 		break;
671 	case SND_SOC_DAPM_POST_PMD:
672 		twl4030_apll_enable(codec, 0);
673 		break;
674 	}
675 	return 0;
676 }
677 
678 static int aif_event(struct snd_soc_dapm_widget *w,
679 		     struct snd_kcontrol *kcontrol, int event)
680 {
681 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
682 	u8 audio_if;
683 
684 	audio_if = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
685 	switch (event) {
686 	case SND_SOC_DAPM_PRE_PMU:
687 		/* Enable AIF */
688 		/* enable the PLL before we use it to clock the DAI */
689 		twl4030_apll_enable(codec, 1);
690 
691 		twl4030_write(codec, TWL4030_REG_AUDIO_IF,
692 			      audio_if | TWL4030_AIF_EN);
693 		break;
694 	case SND_SOC_DAPM_POST_PMD:
695 		/* disable the DAI before we stop it's source PLL */
696 		twl4030_write(codec, TWL4030_REG_AUDIO_IF,
697 			      audio_if &  ~TWL4030_AIF_EN);
698 		twl4030_apll_enable(codec, 0);
699 		break;
700 	}
701 	return 0;
702 }
703 
704 static void headset_ramp(struct snd_soc_codec *codec, int ramp)
705 {
706 	unsigned char hs_gain, hs_pop;
707 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
708 	struct twl4030_codec_data *pdata = twl4030->pdata;
709 	/* Base values for ramp delay calculation: 2^19 - 2^26 */
710 	unsigned int ramp_base[] = {524288, 1048576, 2097152, 4194304,
711 				    8388608, 16777216, 33554432, 67108864};
712 	unsigned int delay;
713 
714 	hs_gain = twl4030_read(codec, TWL4030_REG_HS_GAIN_SET);
715 	hs_pop = twl4030_read(codec, TWL4030_REG_HS_POPN_SET);
716 	delay = (ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] /
717 		twl4030->sysclk) + 1;
718 
719 	/* Enable external mute control, this dramatically reduces
720 	 * the pop-noise */
721 	if (pdata && pdata->hs_extmute) {
722 		if (gpio_is_valid(pdata->hs_extmute_gpio)) {
723 			gpio_set_value(pdata->hs_extmute_gpio, 1);
724 		} else {
725 			hs_pop |= TWL4030_EXTMUTE;
726 			twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
727 		}
728 	}
729 
730 	if (ramp) {
731 		/* Headset ramp-up according to the TRM */
732 		hs_pop |= TWL4030_VMID_EN;
733 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
734 		/* Actually write to the register */
735 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain,
736 				 TWL4030_REG_HS_GAIN_SET);
737 		hs_pop |= TWL4030_RAMP_EN;
738 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
739 		/* Wait ramp delay time + 1, so the VMID can settle */
740 		twl4030_wait_ms(delay);
741 	} else {
742 		/* Headset ramp-down _not_ according to
743 		 * the TRM, but in a way that it is working */
744 		hs_pop &= ~TWL4030_RAMP_EN;
745 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
746 		/* Wait ramp delay time + 1, so the VMID can settle */
747 		twl4030_wait_ms(delay);
748 		/* Bypass the reg_cache to mute the headset */
749 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain & (~0x0f),
750 				 TWL4030_REG_HS_GAIN_SET);
751 
752 		hs_pop &= ~TWL4030_VMID_EN;
753 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
754 	}
755 
756 	/* Disable external mute */
757 	if (pdata && pdata->hs_extmute) {
758 		if (gpio_is_valid(pdata->hs_extmute_gpio)) {
759 			gpio_set_value(pdata->hs_extmute_gpio, 0);
760 		} else {
761 			hs_pop &= ~TWL4030_EXTMUTE;
762 			twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
763 		}
764 	}
765 }
766 
767 static int headsetlpga_event(struct snd_soc_dapm_widget *w,
768 			     struct snd_kcontrol *kcontrol, int event)
769 {
770 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
771 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
772 
773 	switch (event) {
774 	case SND_SOC_DAPM_POST_PMU:
775 		/* Do the ramp-up only once */
776 		if (!twl4030->hsr_enabled)
777 			headset_ramp(codec, 1);
778 
779 		twl4030->hsl_enabled = 1;
780 		break;
781 	case SND_SOC_DAPM_POST_PMD:
782 		/* Do the ramp-down only if both headsetL/R is disabled */
783 		if (!twl4030->hsr_enabled)
784 			headset_ramp(codec, 0);
785 
786 		twl4030->hsl_enabled = 0;
787 		break;
788 	}
789 	return 0;
790 }
791 
792 static int headsetrpga_event(struct snd_soc_dapm_widget *w,
793 			     struct snd_kcontrol *kcontrol, int event)
794 {
795 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
796 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
797 
798 	switch (event) {
799 	case SND_SOC_DAPM_POST_PMU:
800 		/* Do the ramp-up only once */
801 		if (!twl4030->hsl_enabled)
802 			headset_ramp(codec, 1);
803 
804 		twl4030->hsr_enabled = 1;
805 		break;
806 	case SND_SOC_DAPM_POST_PMD:
807 		/* Do the ramp-down only if both headsetL/R is disabled */
808 		if (!twl4030->hsl_enabled)
809 			headset_ramp(codec, 0);
810 
811 		twl4030->hsr_enabled = 0;
812 		break;
813 	}
814 	return 0;
815 }
816 
817 static int digimic_event(struct snd_soc_dapm_widget *w,
818 			 struct snd_kcontrol *kcontrol, int event)
819 {
820 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
821 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
822 	struct twl4030_codec_data *pdata = twl4030->pdata;
823 
824 	if (pdata && pdata->digimic_delay)
825 		twl4030_wait_ms(pdata->digimic_delay);
826 	return 0;
827 }
828 
829 /*
830  * Some of the gain controls in TWL (mostly those which are associated with
831  * the outputs) are implemented in an interesting way:
832  * 0x0 : Power down (mute)
833  * 0x1 : 6dB
834  * 0x2 : 0 dB
835  * 0x3 : -6 dB
836  * Inverting not going to help with these.
837  * Custom volsw and volsw_2r get/put functions to handle these gain bits.
838  */
839 static int snd_soc_get_volsw_twl4030(struct snd_kcontrol *kcontrol,
840 				     struct snd_ctl_elem_value *ucontrol)
841 {
842 	struct soc_mixer_control *mc =
843 		(struct soc_mixer_control *)kcontrol->private_value;
844 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
845 	unsigned int reg = mc->reg;
846 	unsigned int shift = mc->shift;
847 	unsigned int rshift = mc->rshift;
848 	int max = mc->max;
849 	int mask = (1 << fls(max)) - 1;
850 
851 	ucontrol->value.integer.value[0] =
852 		(snd_soc_read(codec, reg) >> shift) & mask;
853 	if (ucontrol->value.integer.value[0])
854 		ucontrol->value.integer.value[0] =
855 			max + 1 - ucontrol->value.integer.value[0];
856 
857 	if (shift != rshift) {
858 		ucontrol->value.integer.value[1] =
859 			(snd_soc_read(codec, reg) >> rshift) & mask;
860 		if (ucontrol->value.integer.value[1])
861 			ucontrol->value.integer.value[1] =
862 				max + 1 - ucontrol->value.integer.value[1];
863 	}
864 
865 	return 0;
866 }
867 
868 static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol,
869 				     struct snd_ctl_elem_value *ucontrol)
870 {
871 	struct soc_mixer_control *mc =
872 		(struct soc_mixer_control *)kcontrol->private_value;
873 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
874 	unsigned int reg = mc->reg;
875 	unsigned int shift = mc->shift;
876 	unsigned int rshift = mc->rshift;
877 	int max = mc->max;
878 	int mask = (1 << fls(max)) - 1;
879 	unsigned short val, val2, val_mask;
880 
881 	val = (ucontrol->value.integer.value[0] & mask);
882 
883 	val_mask = mask << shift;
884 	if (val)
885 		val = max + 1 - val;
886 	val = val << shift;
887 	if (shift != rshift) {
888 		val2 = (ucontrol->value.integer.value[1] & mask);
889 		val_mask |= mask << rshift;
890 		if (val2)
891 			val2 = max + 1 - val2;
892 		val |= val2 << rshift;
893 	}
894 	return snd_soc_update_bits(codec, reg, val_mask, val);
895 }
896 
897 static int snd_soc_get_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
898 					struct snd_ctl_elem_value *ucontrol)
899 {
900 	struct soc_mixer_control *mc =
901 		(struct soc_mixer_control *)kcontrol->private_value;
902 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
903 	unsigned int reg = mc->reg;
904 	unsigned int reg2 = mc->rreg;
905 	unsigned int shift = mc->shift;
906 	int max = mc->max;
907 	int mask = (1<<fls(max))-1;
908 
909 	ucontrol->value.integer.value[0] =
910 		(snd_soc_read(codec, reg) >> shift) & mask;
911 	ucontrol->value.integer.value[1] =
912 		(snd_soc_read(codec, reg2) >> shift) & mask;
913 
914 	if (ucontrol->value.integer.value[0])
915 		ucontrol->value.integer.value[0] =
916 			max + 1 - ucontrol->value.integer.value[0];
917 	if (ucontrol->value.integer.value[1])
918 		ucontrol->value.integer.value[1] =
919 			max + 1 - ucontrol->value.integer.value[1];
920 
921 	return 0;
922 }
923 
924 static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
925 					struct snd_ctl_elem_value *ucontrol)
926 {
927 	struct soc_mixer_control *mc =
928 		(struct soc_mixer_control *)kcontrol->private_value;
929 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
930 	unsigned int reg = mc->reg;
931 	unsigned int reg2 = mc->rreg;
932 	unsigned int shift = mc->shift;
933 	int max = mc->max;
934 	int mask = (1 << fls(max)) - 1;
935 	int err;
936 	unsigned short val, val2, val_mask;
937 
938 	val_mask = mask << shift;
939 	val = (ucontrol->value.integer.value[0] & mask);
940 	val2 = (ucontrol->value.integer.value[1] & mask);
941 
942 	if (val)
943 		val = max + 1 - val;
944 	if (val2)
945 		val2 = max + 1 - val2;
946 
947 	val = val << shift;
948 	val2 = val2 << shift;
949 
950 	err = snd_soc_update_bits(codec, reg, val_mask, val);
951 	if (err < 0)
952 		return err;
953 
954 	err = snd_soc_update_bits(codec, reg2, val_mask, val2);
955 	return err;
956 }
957 
958 /* Codec operation modes */
959 static const char *twl4030_op_modes_texts[] = {
960 	"Option 2 (voice/audio)", "Option 1 (audio)"
961 };
962 
963 static SOC_ENUM_SINGLE_DECL(twl4030_op_modes_enum,
964 			    TWL4030_REG_CODEC_MODE, 0,
965 			    twl4030_op_modes_texts);
966 
967 static int snd_soc_put_twl4030_opmode_enum_double(struct snd_kcontrol *kcontrol,
968 	struct snd_ctl_elem_value *ucontrol)
969 {
970 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
971 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
972 
973 	if (twl4030->configured) {
974 		dev_err(codec->dev,
975 			"operation mode cannot be changed on-the-fly\n");
976 		return -EBUSY;
977 	}
978 
979 	return snd_soc_put_enum_double(kcontrol, ucontrol);
980 }
981 
982 /*
983  * FGAIN volume control:
984  * from -62 to 0 dB in 1 dB steps (mute instead of -63 dB)
985  */
986 static DECLARE_TLV_DB_SCALE(digital_fine_tlv, -6300, 100, 1);
987 
988 /*
989  * CGAIN volume control:
990  * 0 dB to 12 dB in 6 dB steps
991  * value 2 and 3 means 12 dB
992  */
993 static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0, 600, 0);
994 
995 /*
996  * Voice Downlink GAIN volume control:
997  * from -37 to 12 dB in 1 dB steps (mute instead of -37 dB)
998  */
999 static DECLARE_TLV_DB_SCALE(digital_voice_downlink_tlv, -3700, 100, 1);
1000 
1001 /*
1002  * Analog playback gain
1003  * -24 dB to 12 dB in 2 dB steps
1004  */
1005 static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0);
1006 
1007 /*
1008  * Gain controls tied to outputs
1009  * -6 dB to 6 dB in 6 dB steps (mute instead of -12)
1010  */
1011 static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1);
1012 
1013 /*
1014  * Gain control for earpiece amplifier
1015  * 0 dB to 12 dB in 6 dB steps (mute instead of -6)
1016  */
1017 static DECLARE_TLV_DB_SCALE(output_ear_tvl, -600, 600, 1);
1018 
1019 /*
1020  * Capture gain after the ADCs
1021  * from 0 dB to 31 dB in 1 dB steps
1022  */
1023 static DECLARE_TLV_DB_SCALE(digital_capture_tlv, 0, 100, 0);
1024 
1025 /*
1026  * Gain control for input amplifiers
1027  * 0 dB to 30 dB in 6 dB steps
1028  */
1029 static DECLARE_TLV_DB_SCALE(input_gain_tlv, 0, 600, 0);
1030 
1031 /* AVADC clock priority */
1032 static const char *twl4030_avadc_clk_priority_texts[] = {
1033 	"Voice high priority", "HiFi high priority"
1034 };
1035 
1036 static SOC_ENUM_SINGLE_DECL(twl4030_avadc_clk_priority_enum,
1037 			    TWL4030_REG_AVADC_CTL, 2,
1038 			    twl4030_avadc_clk_priority_texts);
1039 
1040 static const char *twl4030_rampdelay_texts[] = {
1041 	"27/20/14 ms", "55/40/27 ms", "109/81/55 ms", "218/161/109 ms",
1042 	"437/323/218 ms", "874/645/437 ms", "1748/1291/874 ms",
1043 	"3495/2581/1748 ms"
1044 };
1045 
1046 static SOC_ENUM_SINGLE_DECL(twl4030_rampdelay_enum,
1047 			    TWL4030_REG_HS_POPN_SET, 2,
1048 			    twl4030_rampdelay_texts);
1049 
1050 /* Vibra H-bridge direction mode */
1051 static const char *twl4030_vibradirmode_texts[] = {
1052 	"Vibra H-bridge direction", "Audio data MSB",
1053 };
1054 
1055 static SOC_ENUM_SINGLE_DECL(twl4030_vibradirmode_enum,
1056 			    TWL4030_REG_VIBRA_CTL, 5,
1057 			    twl4030_vibradirmode_texts);
1058 
1059 /* Vibra H-bridge direction */
1060 static const char *twl4030_vibradir_texts[] = {
1061 	"Positive polarity", "Negative polarity",
1062 };
1063 
1064 static SOC_ENUM_SINGLE_DECL(twl4030_vibradir_enum,
1065 			    TWL4030_REG_VIBRA_CTL, 1,
1066 			    twl4030_vibradir_texts);
1067 
1068 /* Digimic Left and right swapping */
1069 static const char *twl4030_digimicswap_texts[] = {
1070 	"Not swapped", "Swapped",
1071 };
1072 
1073 static SOC_ENUM_SINGLE_DECL(twl4030_digimicswap_enum,
1074 			    TWL4030_REG_MISC_SET_1, 0,
1075 			    twl4030_digimicswap_texts);
1076 
1077 static const struct snd_kcontrol_new twl4030_snd_controls[] = {
1078 	/* Codec operation mode control */
1079 	SOC_ENUM_EXT("Codec Operation Mode", twl4030_op_modes_enum,
1080 		snd_soc_get_enum_double,
1081 		snd_soc_put_twl4030_opmode_enum_double),
1082 
1083 	/* Common playback gain controls */
1084 	SOC_DOUBLE_R_TLV("DAC1 Digital Fine Playback Volume",
1085 		TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1086 		0, 0x3f, 0, digital_fine_tlv),
1087 	SOC_DOUBLE_R_TLV("DAC2 Digital Fine Playback Volume",
1088 		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1089 		0, 0x3f, 0, digital_fine_tlv),
1090 
1091 	SOC_DOUBLE_R_TLV("DAC1 Digital Coarse Playback Volume",
1092 		TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1093 		6, 0x2, 0, digital_coarse_tlv),
1094 	SOC_DOUBLE_R_TLV("DAC2 Digital Coarse Playback Volume",
1095 		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1096 		6, 0x2, 0, digital_coarse_tlv),
1097 
1098 	SOC_DOUBLE_R_TLV("DAC1 Analog Playback Volume",
1099 		TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1100 		3, 0x12, 1, analog_tlv),
1101 	SOC_DOUBLE_R_TLV("DAC2 Analog Playback Volume",
1102 		TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1103 		3, 0x12, 1, analog_tlv),
1104 	SOC_DOUBLE_R("DAC1 Analog Playback Switch",
1105 		TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1106 		1, 1, 0),
1107 	SOC_DOUBLE_R("DAC2 Analog Playback Switch",
1108 		TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1109 		1, 1, 0),
1110 
1111 	/* Common voice downlink gain controls */
1112 	SOC_SINGLE_TLV("DAC Voice Digital Downlink Volume",
1113 		TWL4030_REG_VRXPGA, 0, 0x31, 0, digital_voice_downlink_tlv),
1114 
1115 	SOC_SINGLE_TLV("DAC Voice Analog Downlink Volume",
1116 		TWL4030_REG_VDL_APGA_CTL, 3, 0x12, 1, analog_tlv),
1117 
1118 	SOC_SINGLE("DAC Voice Analog Downlink Switch",
1119 		TWL4030_REG_VDL_APGA_CTL, 1, 1, 0),
1120 
1121 	/* Separate output gain controls */
1122 	SOC_DOUBLE_R_EXT_TLV("PreDriv Playback Volume",
1123 		TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL,
1124 		4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1125 		snd_soc_put_volsw_r2_twl4030, output_tvl),
1126 
1127 	SOC_DOUBLE_EXT_TLV("Headset Playback Volume",
1128 		TWL4030_REG_HS_GAIN_SET, 0, 2, 3, 0, snd_soc_get_volsw_twl4030,
1129 		snd_soc_put_volsw_twl4030, output_tvl),
1130 
1131 	SOC_DOUBLE_R_EXT_TLV("Carkit Playback Volume",
1132 		TWL4030_REG_PRECKL_CTL, TWL4030_REG_PRECKR_CTL,
1133 		4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1134 		snd_soc_put_volsw_r2_twl4030, output_tvl),
1135 
1136 	SOC_SINGLE_EXT_TLV("Earpiece Playback Volume",
1137 		TWL4030_REG_EAR_CTL, 4, 3, 0, snd_soc_get_volsw_twl4030,
1138 		snd_soc_put_volsw_twl4030, output_ear_tvl),
1139 
1140 	/* Common capture gain controls */
1141 	SOC_DOUBLE_R_TLV("TX1 Digital Capture Volume",
1142 		TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA,
1143 		0, 0x1f, 0, digital_capture_tlv),
1144 	SOC_DOUBLE_R_TLV("TX2 Digital Capture Volume",
1145 		TWL4030_REG_AVTXL2PGA, TWL4030_REG_AVTXR2PGA,
1146 		0, 0x1f, 0, digital_capture_tlv),
1147 
1148 	SOC_DOUBLE_TLV("Analog Capture Volume", TWL4030_REG_ANAMIC_GAIN,
1149 		0, 3, 5, 0, input_gain_tlv),
1150 
1151 	SOC_ENUM("AVADC Clock Priority", twl4030_avadc_clk_priority_enum),
1152 
1153 	SOC_ENUM("HS ramp delay", twl4030_rampdelay_enum),
1154 
1155 	SOC_ENUM("Vibra H-bridge mode", twl4030_vibradirmode_enum),
1156 	SOC_ENUM("Vibra H-bridge direction", twl4030_vibradir_enum),
1157 
1158 	SOC_ENUM("Digimic LR Swap", twl4030_digimicswap_enum),
1159 };
1160 
1161 static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
1162 	/* Left channel inputs */
1163 	SND_SOC_DAPM_INPUT("MAINMIC"),
1164 	SND_SOC_DAPM_INPUT("HSMIC"),
1165 	SND_SOC_DAPM_INPUT("AUXL"),
1166 	SND_SOC_DAPM_INPUT("CARKITMIC"),
1167 	/* Right channel inputs */
1168 	SND_SOC_DAPM_INPUT("SUBMIC"),
1169 	SND_SOC_DAPM_INPUT("AUXR"),
1170 	/* Digital microphones (Stereo) */
1171 	SND_SOC_DAPM_INPUT("DIGIMIC0"),
1172 	SND_SOC_DAPM_INPUT("DIGIMIC1"),
1173 
1174 	/* Outputs */
1175 	SND_SOC_DAPM_OUTPUT("EARPIECE"),
1176 	SND_SOC_DAPM_OUTPUT("PREDRIVEL"),
1177 	SND_SOC_DAPM_OUTPUT("PREDRIVER"),
1178 	SND_SOC_DAPM_OUTPUT("HSOL"),
1179 	SND_SOC_DAPM_OUTPUT("HSOR"),
1180 	SND_SOC_DAPM_OUTPUT("CARKITL"),
1181 	SND_SOC_DAPM_OUTPUT("CARKITR"),
1182 	SND_SOC_DAPM_OUTPUT("HFL"),
1183 	SND_SOC_DAPM_OUTPUT("HFR"),
1184 	SND_SOC_DAPM_OUTPUT("VIBRA"),
1185 
1186 	/* AIF and APLL clocks for running DAIs (including loopback) */
1187 	SND_SOC_DAPM_OUTPUT("Virtual HiFi OUT"),
1188 	SND_SOC_DAPM_INPUT("Virtual HiFi IN"),
1189 	SND_SOC_DAPM_OUTPUT("Virtual Voice OUT"),
1190 
1191 	/* DACs */
1192 	SND_SOC_DAPM_DAC("DAC Right1", NULL, SND_SOC_NOPM, 0, 0),
1193 	SND_SOC_DAPM_DAC("DAC Left1", NULL, SND_SOC_NOPM, 0, 0),
1194 	SND_SOC_DAPM_DAC("DAC Right2", NULL, SND_SOC_NOPM, 0, 0),
1195 	SND_SOC_DAPM_DAC("DAC Left2", NULL, SND_SOC_NOPM, 0, 0),
1196 	SND_SOC_DAPM_DAC("DAC Voice", NULL, SND_SOC_NOPM, 0, 0),
1197 
1198 	SND_SOC_DAPM_AIF_IN("VAIFIN", "Voice Playback", 0,
1199 			    TWL4030_REG_VOICE_IF, 6, 0),
1200 
1201 	/* Analog bypasses */
1202 	SND_SOC_DAPM_SWITCH("Right1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1203 			&twl4030_dapm_abypassr1_control),
1204 	SND_SOC_DAPM_SWITCH("Left1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1205 			&twl4030_dapm_abypassl1_control),
1206 	SND_SOC_DAPM_SWITCH("Right2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1207 			&twl4030_dapm_abypassr2_control),
1208 	SND_SOC_DAPM_SWITCH("Left2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1209 			&twl4030_dapm_abypassl2_control),
1210 	SND_SOC_DAPM_SWITCH("Voice Analog Loopback", SND_SOC_NOPM, 0, 0,
1211 			&twl4030_dapm_abypassv_control),
1212 
1213 	/* Master analog loopback switch */
1214 	SND_SOC_DAPM_SUPPLY("FM Loop Enable", TWL4030_REG_MISC_SET_1, 5, 0,
1215 			    NULL, 0),
1216 
1217 	/* Digital bypasses */
1218 	SND_SOC_DAPM_SWITCH("Left Digital Loopback", SND_SOC_NOPM, 0, 0,
1219 			&twl4030_dapm_dbypassl_control),
1220 	SND_SOC_DAPM_SWITCH("Right Digital Loopback", SND_SOC_NOPM, 0, 0,
1221 			&twl4030_dapm_dbypassr_control),
1222 	SND_SOC_DAPM_SWITCH("Voice Digital Loopback", SND_SOC_NOPM, 0, 0,
1223 			&twl4030_dapm_dbypassv_control),
1224 
1225 	/* Digital mixers, power control for the physical DACs */
1226 	SND_SOC_DAPM_MIXER("Digital R1 Playback Mixer",
1227 			TWL4030_REG_AVDAC_CTL, 0, 0, NULL, 0),
1228 	SND_SOC_DAPM_MIXER("Digital L1 Playback Mixer",
1229 			TWL4030_REG_AVDAC_CTL, 1, 0, NULL, 0),
1230 	SND_SOC_DAPM_MIXER("Digital R2 Playback Mixer",
1231 			TWL4030_REG_AVDAC_CTL, 2, 0, NULL, 0),
1232 	SND_SOC_DAPM_MIXER("Digital L2 Playback Mixer",
1233 			TWL4030_REG_AVDAC_CTL, 3, 0, NULL, 0),
1234 	SND_SOC_DAPM_MIXER("Digital Voice Playback Mixer",
1235 			TWL4030_REG_AVDAC_CTL, 4, 0, NULL, 0),
1236 
1237 	/* Analog mixers, power control for the physical PGAs */
1238 	SND_SOC_DAPM_MIXER("Analog R1 Playback Mixer",
1239 			TWL4030_REG_ARXR1_APGA_CTL, 0, 0, NULL, 0),
1240 	SND_SOC_DAPM_MIXER("Analog L1 Playback Mixer",
1241 			TWL4030_REG_ARXL1_APGA_CTL, 0, 0, NULL, 0),
1242 	SND_SOC_DAPM_MIXER("Analog R2 Playback Mixer",
1243 			TWL4030_REG_ARXR2_APGA_CTL, 0, 0, NULL, 0),
1244 	SND_SOC_DAPM_MIXER("Analog L2 Playback Mixer",
1245 			TWL4030_REG_ARXL2_APGA_CTL, 0, 0, NULL, 0),
1246 	SND_SOC_DAPM_MIXER("Analog Voice Playback Mixer",
1247 			TWL4030_REG_VDL_APGA_CTL, 0, 0, NULL, 0),
1248 
1249 	SND_SOC_DAPM_SUPPLY("APLL Enable", SND_SOC_NOPM, 0, 0, apll_event,
1250 			    SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1251 
1252 	SND_SOC_DAPM_SUPPLY("AIF Enable", SND_SOC_NOPM, 0, 0, aif_event,
1253 			    SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1254 
1255 	/* Output MIXER controls */
1256 	/* Earpiece */
1257 	SND_SOC_DAPM_MIXER("Earpiece Mixer", SND_SOC_NOPM, 0, 0,
1258 			&twl4030_dapm_earpiece_controls[0],
1259 			ARRAY_SIZE(twl4030_dapm_earpiece_controls)),
1260 	SND_SOC_DAPM_PGA_E("Earpiece PGA", SND_SOC_NOPM,
1261 			0, 0, NULL, 0, earpiecepga_event,
1262 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1263 	/* PreDrivL/R */
1264 	SND_SOC_DAPM_MIXER("PredriveL Mixer", SND_SOC_NOPM, 0, 0,
1265 			&twl4030_dapm_predrivel_controls[0],
1266 			ARRAY_SIZE(twl4030_dapm_predrivel_controls)),
1267 	SND_SOC_DAPM_PGA_E("PredriveL PGA", SND_SOC_NOPM,
1268 			0, 0, NULL, 0, predrivelpga_event,
1269 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1270 	SND_SOC_DAPM_MIXER("PredriveR Mixer", SND_SOC_NOPM, 0, 0,
1271 			&twl4030_dapm_predriver_controls[0],
1272 			ARRAY_SIZE(twl4030_dapm_predriver_controls)),
1273 	SND_SOC_DAPM_PGA_E("PredriveR PGA", SND_SOC_NOPM,
1274 			0, 0, NULL, 0, predriverpga_event,
1275 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1276 	/* HeadsetL/R */
1277 	SND_SOC_DAPM_MIXER("HeadsetL Mixer", SND_SOC_NOPM, 0, 0,
1278 			&twl4030_dapm_hsol_controls[0],
1279 			ARRAY_SIZE(twl4030_dapm_hsol_controls)),
1280 	SND_SOC_DAPM_PGA_E("HeadsetL PGA", SND_SOC_NOPM,
1281 			0, 0, NULL, 0, headsetlpga_event,
1282 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1283 	SND_SOC_DAPM_MIXER("HeadsetR Mixer", SND_SOC_NOPM, 0, 0,
1284 			&twl4030_dapm_hsor_controls[0],
1285 			ARRAY_SIZE(twl4030_dapm_hsor_controls)),
1286 	SND_SOC_DAPM_PGA_E("HeadsetR PGA", SND_SOC_NOPM,
1287 			0, 0, NULL, 0, headsetrpga_event,
1288 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1289 	/* CarkitL/R */
1290 	SND_SOC_DAPM_MIXER("CarkitL Mixer", SND_SOC_NOPM, 0, 0,
1291 			&twl4030_dapm_carkitl_controls[0],
1292 			ARRAY_SIZE(twl4030_dapm_carkitl_controls)),
1293 	SND_SOC_DAPM_PGA_E("CarkitL PGA", SND_SOC_NOPM,
1294 			0, 0, NULL, 0, carkitlpga_event,
1295 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1296 	SND_SOC_DAPM_MIXER("CarkitR Mixer", SND_SOC_NOPM, 0, 0,
1297 			&twl4030_dapm_carkitr_controls[0],
1298 			ARRAY_SIZE(twl4030_dapm_carkitr_controls)),
1299 	SND_SOC_DAPM_PGA_E("CarkitR PGA", SND_SOC_NOPM,
1300 			0, 0, NULL, 0, carkitrpga_event,
1301 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1302 
1303 	/* Output MUX controls */
1304 	/* HandsfreeL/R */
1305 	SND_SOC_DAPM_MUX("HandsfreeL Mux", SND_SOC_NOPM, 0, 0,
1306 		&twl4030_dapm_handsfreel_control),
1307 	SND_SOC_DAPM_SWITCH("HandsfreeL", SND_SOC_NOPM, 0, 0,
1308 			&twl4030_dapm_handsfreelmute_control),
1309 	SND_SOC_DAPM_PGA_E("HandsfreeL PGA", SND_SOC_NOPM,
1310 			0, 0, NULL, 0, handsfreelpga_event,
1311 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1312 	SND_SOC_DAPM_MUX("HandsfreeR Mux", SND_SOC_NOPM, 5, 0,
1313 		&twl4030_dapm_handsfreer_control),
1314 	SND_SOC_DAPM_SWITCH("HandsfreeR", SND_SOC_NOPM, 0, 0,
1315 			&twl4030_dapm_handsfreermute_control),
1316 	SND_SOC_DAPM_PGA_E("HandsfreeR PGA", SND_SOC_NOPM,
1317 			0, 0, NULL, 0, handsfreerpga_event,
1318 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1319 	/* Vibra */
1320 	SND_SOC_DAPM_MUX_E("Vibra Mux", TWL4030_REG_VIBRA_CTL, 0, 0,
1321 			   &twl4030_dapm_vibra_control, vibramux_event,
1322 			   SND_SOC_DAPM_PRE_PMU),
1323 	SND_SOC_DAPM_MUX("Vibra Route", SND_SOC_NOPM, 0, 0,
1324 		&twl4030_dapm_vibrapath_control),
1325 
1326 	/* Introducing four virtual ADC, since TWL4030 have four channel for
1327 	   capture */
1328 	SND_SOC_DAPM_ADC("ADC Virtual Left1", NULL, SND_SOC_NOPM, 0, 0),
1329 	SND_SOC_DAPM_ADC("ADC Virtual Right1", NULL, SND_SOC_NOPM, 0, 0),
1330 	SND_SOC_DAPM_ADC("ADC Virtual Left2", NULL, SND_SOC_NOPM, 0, 0),
1331 	SND_SOC_DAPM_ADC("ADC Virtual Right2", NULL, SND_SOC_NOPM, 0, 0),
1332 
1333 	SND_SOC_DAPM_AIF_OUT("VAIFOUT", "Voice Capture", 0,
1334 			     TWL4030_REG_VOICE_IF, 5, 0),
1335 
1336 	/* Analog/Digital mic path selection.
1337 	   TX1 Left/Right: either analog Left/Right or Digimic0
1338 	   TX2 Left/Right: either analog Left/Right or Digimic1 */
1339 	SND_SOC_DAPM_MUX("TX1 Capture Route", SND_SOC_NOPM, 0, 0,
1340 		&twl4030_dapm_micpathtx1_control),
1341 	SND_SOC_DAPM_MUX("TX2 Capture Route", SND_SOC_NOPM, 0, 0,
1342 		&twl4030_dapm_micpathtx2_control),
1343 
1344 	/* Analog input mixers for the capture amplifiers */
1345 	SND_SOC_DAPM_MIXER("Analog Left",
1346 		TWL4030_REG_ANAMICL, 4, 0,
1347 		&twl4030_dapm_analoglmic_controls[0],
1348 		ARRAY_SIZE(twl4030_dapm_analoglmic_controls)),
1349 	SND_SOC_DAPM_MIXER("Analog Right",
1350 		TWL4030_REG_ANAMICR, 4, 0,
1351 		&twl4030_dapm_analogrmic_controls[0],
1352 		ARRAY_SIZE(twl4030_dapm_analogrmic_controls)),
1353 
1354 	SND_SOC_DAPM_PGA("ADC Physical Left",
1355 		TWL4030_REG_AVADC_CTL, 3, 0, NULL, 0),
1356 	SND_SOC_DAPM_PGA("ADC Physical Right",
1357 		TWL4030_REG_AVADC_CTL, 1, 0, NULL, 0),
1358 
1359 	SND_SOC_DAPM_PGA_E("Digimic0 Enable",
1360 		TWL4030_REG_ADCMICSEL, 1, 0, NULL, 0,
1361 		digimic_event, SND_SOC_DAPM_POST_PMU),
1362 	SND_SOC_DAPM_PGA_E("Digimic1 Enable",
1363 		TWL4030_REG_ADCMICSEL, 3, 0, NULL, 0,
1364 		digimic_event, SND_SOC_DAPM_POST_PMU),
1365 
1366 	SND_SOC_DAPM_SUPPLY("micbias1 select", TWL4030_REG_MICBIAS_CTL, 5, 0,
1367 			    NULL, 0),
1368 	SND_SOC_DAPM_SUPPLY("micbias2 select", TWL4030_REG_MICBIAS_CTL, 6, 0,
1369 			    NULL, 0),
1370 
1371 	/* Microphone bias */
1372 	SND_SOC_DAPM_SUPPLY("Mic Bias 1",
1373 			    TWL4030_REG_MICBIAS_CTL, 0, 0, NULL, 0),
1374 	SND_SOC_DAPM_SUPPLY("Mic Bias 2",
1375 			    TWL4030_REG_MICBIAS_CTL, 1, 0, NULL, 0),
1376 	SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
1377 			    TWL4030_REG_MICBIAS_CTL, 2, 0, NULL, 0),
1378 
1379 	SND_SOC_DAPM_SUPPLY("VIF Enable", TWL4030_REG_VOICE_IF, 0, 0, NULL, 0),
1380 };
1381 
1382 static const struct snd_soc_dapm_route intercon[] = {
1383 	/* Stream -> DAC mapping */
1384 	{"DAC Right1", NULL, "HiFi Playback"},
1385 	{"DAC Left1", NULL, "HiFi Playback"},
1386 	{"DAC Right2", NULL, "HiFi Playback"},
1387 	{"DAC Left2", NULL, "HiFi Playback"},
1388 	{"DAC Voice", NULL, "VAIFIN"},
1389 
1390 	/* ADC -> Stream mapping */
1391 	{"HiFi Capture", NULL, "ADC Virtual Left1"},
1392 	{"HiFi Capture", NULL, "ADC Virtual Right1"},
1393 	{"HiFi Capture", NULL, "ADC Virtual Left2"},
1394 	{"HiFi Capture", NULL, "ADC Virtual Right2"},
1395 	{"VAIFOUT", NULL, "ADC Virtual Left2"},
1396 	{"VAIFOUT", NULL, "ADC Virtual Right2"},
1397 	{"VAIFOUT", NULL, "VIF Enable"},
1398 
1399 	{"Digital L1 Playback Mixer", NULL, "DAC Left1"},
1400 	{"Digital R1 Playback Mixer", NULL, "DAC Right1"},
1401 	{"Digital L2 Playback Mixer", NULL, "DAC Left2"},
1402 	{"Digital R2 Playback Mixer", NULL, "DAC Right2"},
1403 	{"Digital Voice Playback Mixer", NULL, "DAC Voice"},
1404 
1405 	/* Supply for the digital part (APLL) */
1406 	{"Digital Voice Playback Mixer", NULL, "APLL Enable"},
1407 
1408 	{"DAC Left1", NULL, "AIF Enable"},
1409 	{"DAC Right1", NULL, "AIF Enable"},
1410 	{"DAC Left2", NULL, "AIF Enable"},
1411 	{"DAC Right1", NULL, "AIF Enable"},
1412 	{"DAC Voice", NULL, "VIF Enable"},
1413 
1414 	{"Digital R2 Playback Mixer", NULL, "AIF Enable"},
1415 	{"Digital L2 Playback Mixer", NULL, "AIF Enable"},
1416 
1417 	{"Analog L1 Playback Mixer", NULL, "Digital L1 Playback Mixer"},
1418 	{"Analog R1 Playback Mixer", NULL, "Digital R1 Playback Mixer"},
1419 	{"Analog L2 Playback Mixer", NULL, "Digital L2 Playback Mixer"},
1420 	{"Analog R2 Playback Mixer", NULL, "Digital R2 Playback Mixer"},
1421 	{"Analog Voice Playback Mixer", NULL, "Digital Voice Playback Mixer"},
1422 
1423 	/* Internal playback routings */
1424 	/* Earpiece */
1425 	{"Earpiece Mixer", "Voice", "Analog Voice Playback Mixer"},
1426 	{"Earpiece Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1427 	{"Earpiece Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1428 	{"Earpiece Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1429 	{"Earpiece PGA", NULL, "Earpiece Mixer"},
1430 	/* PreDrivL */
1431 	{"PredriveL Mixer", "Voice", "Analog Voice Playback Mixer"},
1432 	{"PredriveL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1433 	{"PredriveL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1434 	{"PredriveL Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1435 	{"PredriveL PGA", NULL, "PredriveL Mixer"},
1436 	/* PreDrivR */
1437 	{"PredriveR Mixer", "Voice", "Analog Voice Playback Mixer"},
1438 	{"PredriveR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1439 	{"PredriveR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1440 	{"PredriveR Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1441 	{"PredriveR PGA", NULL, "PredriveR Mixer"},
1442 	/* HeadsetL */
1443 	{"HeadsetL Mixer", "Voice", "Analog Voice Playback Mixer"},
1444 	{"HeadsetL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1445 	{"HeadsetL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1446 	{"HeadsetL PGA", NULL, "HeadsetL Mixer"},
1447 	/* HeadsetR */
1448 	{"HeadsetR Mixer", "Voice", "Analog Voice Playback Mixer"},
1449 	{"HeadsetR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1450 	{"HeadsetR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1451 	{"HeadsetR PGA", NULL, "HeadsetR Mixer"},
1452 	/* CarkitL */
1453 	{"CarkitL Mixer", "Voice", "Analog Voice Playback Mixer"},
1454 	{"CarkitL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1455 	{"CarkitL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1456 	{"CarkitL PGA", NULL, "CarkitL Mixer"},
1457 	/* CarkitR */
1458 	{"CarkitR Mixer", "Voice", "Analog Voice Playback Mixer"},
1459 	{"CarkitR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1460 	{"CarkitR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1461 	{"CarkitR PGA", NULL, "CarkitR Mixer"},
1462 	/* HandsfreeL */
1463 	{"HandsfreeL Mux", "Voice", "Analog Voice Playback Mixer"},
1464 	{"HandsfreeL Mux", "AudioL1", "Analog L1 Playback Mixer"},
1465 	{"HandsfreeL Mux", "AudioL2", "Analog L2 Playback Mixer"},
1466 	{"HandsfreeL Mux", "AudioR2", "Analog R2 Playback Mixer"},
1467 	{"HandsfreeL", "Switch", "HandsfreeL Mux"},
1468 	{"HandsfreeL PGA", NULL, "HandsfreeL"},
1469 	/* HandsfreeR */
1470 	{"HandsfreeR Mux", "Voice", "Analog Voice Playback Mixer"},
1471 	{"HandsfreeR Mux", "AudioR1", "Analog R1 Playback Mixer"},
1472 	{"HandsfreeR Mux", "AudioR2", "Analog R2 Playback Mixer"},
1473 	{"HandsfreeR Mux", "AudioL2", "Analog L2 Playback Mixer"},
1474 	{"HandsfreeR", "Switch", "HandsfreeR Mux"},
1475 	{"HandsfreeR PGA", NULL, "HandsfreeR"},
1476 	/* Vibra */
1477 	{"Vibra Mux", "AudioL1", "DAC Left1"},
1478 	{"Vibra Mux", "AudioR1", "DAC Right1"},
1479 	{"Vibra Mux", "AudioL2", "DAC Left2"},
1480 	{"Vibra Mux", "AudioR2", "DAC Right2"},
1481 
1482 	/* outputs */
1483 	/* Must be always connected (for AIF and APLL) */
1484 	{"Virtual HiFi OUT", NULL, "DAC Left1"},
1485 	{"Virtual HiFi OUT", NULL, "DAC Right1"},
1486 	{"Virtual HiFi OUT", NULL, "DAC Left2"},
1487 	{"Virtual HiFi OUT", NULL, "DAC Right2"},
1488 	/* Must be always connected (for APLL) */
1489 	{"Virtual Voice OUT", NULL, "Digital Voice Playback Mixer"},
1490 	/* Physical outputs */
1491 	{"EARPIECE", NULL, "Earpiece PGA"},
1492 	{"PREDRIVEL", NULL, "PredriveL PGA"},
1493 	{"PREDRIVER", NULL, "PredriveR PGA"},
1494 	{"HSOL", NULL, "HeadsetL PGA"},
1495 	{"HSOR", NULL, "HeadsetR PGA"},
1496 	{"CARKITL", NULL, "CarkitL PGA"},
1497 	{"CARKITR", NULL, "CarkitR PGA"},
1498 	{"HFL", NULL, "HandsfreeL PGA"},
1499 	{"HFR", NULL, "HandsfreeR PGA"},
1500 	{"Vibra Route", "Audio", "Vibra Mux"},
1501 	{"VIBRA", NULL, "Vibra Route"},
1502 
1503 	/* Capture path */
1504 	/* Must be always connected (for AIF and APLL) */
1505 	{"ADC Virtual Left1", NULL, "Virtual HiFi IN"},
1506 	{"ADC Virtual Right1", NULL, "Virtual HiFi IN"},
1507 	{"ADC Virtual Left2", NULL, "Virtual HiFi IN"},
1508 	{"ADC Virtual Right2", NULL, "Virtual HiFi IN"},
1509 	/* Physical inputs */
1510 	{"Analog Left", "Main Mic Capture Switch", "MAINMIC"},
1511 	{"Analog Left", "Headset Mic Capture Switch", "HSMIC"},
1512 	{"Analog Left", "AUXL Capture Switch", "AUXL"},
1513 	{"Analog Left", "Carkit Mic Capture Switch", "CARKITMIC"},
1514 
1515 	{"Analog Right", "Sub Mic Capture Switch", "SUBMIC"},
1516 	{"Analog Right", "AUXR Capture Switch", "AUXR"},
1517 
1518 	{"ADC Physical Left", NULL, "Analog Left"},
1519 	{"ADC Physical Right", NULL, "Analog Right"},
1520 
1521 	{"Digimic0 Enable", NULL, "DIGIMIC0"},
1522 	{"Digimic1 Enable", NULL, "DIGIMIC1"},
1523 
1524 	{"DIGIMIC0", NULL, "micbias1 select"},
1525 	{"DIGIMIC1", NULL, "micbias2 select"},
1526 
1527 	/* TX1 Left capture path */
1528 	{"TX1 Capture Route", "Analog", "ADC Physical Left"},
1529 	{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1530 	/* TX1 Right capture path */
1531 	{"TX1 Capture Route", "Analog", "ADC Physical Right"},
1532 	{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1533 	/* TX2 Left capture path */
1534 	{"TX2 Capture Route", "Analog", "ADC Physical Left"},
1535 	{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1536 	/* TX2 Right capture path */
1537 	{"TX2 Capture Route", "Analog", "ADC Physical Right"},
1538 	{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1539 
1540 	{"ADC Virtual Left1", NULL, "TX1 Capture Route"},
1541 	{"ADC Virtual Right1", NULL, "TX1 Capture Route"},
1542 	{"ADC Virtual Left2", NULL, "TX2 Capture Route"},
1543 	{"ADC Virtual Right2", NULL, "TX2 Capture Route"},
1544 
1545 	{"ADC Virtual Left1", NULL, "AIF Enable"},
1546 	{"ADC Virtual Right1", NULL, "AIF Enable"},
1547 	{"ADC Virtual Left2", NULL, "AIF Enable"},
1548 	{"ADC Virtual Right2", NULL, "AIF Enable"},
1549 
1550 	/* Analog bypass routes */
1551 	{"Right1 Analog Loopback", "Switch", "Analog Right"},
1552 	{"Left1 Analog Loopback", "Switch", "Analog Left"},
1553 	{"Right2 Analog Loopback", "Switch", "Analog Right"},
1554 	{"Left2 Analog Loopback", "Switch", "Analog Left"},
1555 	{"Voice Analog Loopback", "Switch", "Analog Left"},
1556 
1557 	/* Supply for the Analog loopbacks */
1558 	{"Right1 Analog Loopback", NULL, "FM Loop Enable"},
1559 	{"Left1 Analog Loopback", NULL, "FM Loop Enable"},
1560 	{"Right2 Analog Loopback", NULL, "FM Loop Enable"},
1561 	{"Left2 Analog Loopback", NULL, "FM Loop Enable"},
1562 	{"Voice Analog Loopback", NULL, "FM Loop Enable"},
1563 
1564 	{"Analog R1 Playback Mixer", NULL, "Right1 Analog Loopback"},
1565 	{"Analog L1 Playback Mixer", NULL, "Left1 Analog Loopback"},
1566 	{"Analog R2 Playback Mixer", NULL, "Right2 Analog Loopback"},
1567 	{"Analog L2 Playback Mixer", NULL, "Left2 Analog Loopback"},
1568 	{"Analog Voice Playback Mixer", NULL, "Voice Analog Loopback"},
1569 
1570 	/* Digital bypass routes */
1571 	{"Right Digital Loopback", "Volume", "TX1 Capture Route"},
1572 	{"Left Digital Loopback", "Volume", "TX1 Capture Route"},
1573 	{"Voice Digital Loopback", "Volume", "TX2 Capture Route"},
1574 
1575 	{"Digital R2 Playback Mixer", NULL, "Right Digital Loopback"},
1576 	{"Digital L2 Playback Mixer", NULL, "Left Digital Loopback"},
1577 	{"Digital Voice Playback Mixer", NULL, "Voice Digital Loopback"},
1578 
1579 };
1580 
1581 static int twl4030_set_bias_level(struct snd_soc_codec *codec,
1582 				  enum snd_soc_bias_level level)
1583 {
1584 	switch (level) {
1585 	case SND_SOC_BIAS_ON:
1586 		break;
1587 	case SND_SOC_BIAS_PREPARE:
1588 		break;
1589 	case SND_SOC_BIAS_STANDBY:
1590 		if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF)
1591 			twl4030_codec_enable(codec, 1);
1592 		break;
1593 	case SND_SOC_BIAS_OFF:
1594 		twl4030_codec_enable(codec, 0);
1595 		break;
1596 	}
1597 
1598 	return 0;
1599 }
1600 
1601 static void twl4030_constraints(struct twl4030_priv *twl4030,
1602 				struct snd_pcm_substream *mst_substream)
1603 {
1604 	struct snd_pcm_substream *slv_substream;
1605 
1606 	/* Pick the stream, which need to be constrained */
1607 	if (mst_substream == twl4030->master_substream)
1608 		slv_substream = twl4030->slave_substream;
1609 	else if (mst_substream == twl4030->slave_substream)
1610 		slv_substream = twl4030->master_substream;
1611 	else /* This should not happen.. */
1612 		return;
1613 
1614 	/* Set the constraints according to the already configured stream */
1615 	snd_pcm_hw_constraint_single(slv_substream->runtime,
1616 				SNDRV_PCM_HW_PARAM_RATE,
1617 				twl4030->rate);
1618 
1619 	snd_pcm_hw_constraint_single(slv_substream->runtime,
1620 				SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
1621 				twl4030->sample_bits);
1622 
1623 	snd_pcm_hw_constraint_single(slv_substream->runtime,
1624 				SNDRV_PCM_HW_PARAM_CHANNELS,
1625 				twl4030->channels);
1626 }
1627 
1628 /* In case of 4 channel mode, the RX1 L/R for playback and the TX2 L/R for
1629  * capture has to be enabled/disabled. */
1630 static void twl4030_tdm_enable(struct snd_soc_codec *codec, int direction,
1631 			       int enable)
1632 {
1633 	u8 reg, mask;
1634 
1635 	reg = twl4030_read(codec, TWL4030_REG_OPTION);
1636 
1637 	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1638 		mask = TWL4030_ARXL1_VRX_EN | TWL4030_ARXR1_EN;
1639 	else
1640 		mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1641 
1642 	if (enable)
1643 		reg |= mask;
1644 	else
1645 		reg &= ~mask;
1646 
1647 	twl4030_write(codec, TWL4030_REG_OPTION, reg);
1648 }
1649 
1650 static int twl4030_startup(struct snd_pcm_substream *substream,
1651 			   struct snd_soc_dai *dai)
1652 {
1653 	struct snd_soc_codec *codec = dai->codec;
1654 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1655 
1656 	if (twl4030->master_substream) {
1657 		twl4030->slave_substream = substream;
1658 		/* The DAI has one configuration for playback and capture, so
1659 		 * if the DAI has been already configured then constrain this
1660 		 * substream to match it. */
1661 		if (twl4030->configured)
1662 			twl4030_constraints(twl4030, twl4030->master_substream);
1663 	} else {
1664 		if (!(twl4030_read(codec, TWL4030_REG_CODEC_MODE) &
1665 			TWL4030_OPTION_1)) {
1666 			/* In option2 4 channel is not supported, set the
1667 			 * constraint for the first stream for channels, the
1668 			 * second stream will 'inherit' this cosntraint */
1669 			snd_pcm_hw_constraint_single(substream->runtime,
1670 						     SNDRV_PCM_HW_PARAM_CHANNELS,
1671 						     2);
1672 		}
1673 		twl4030->master_substream = substream;
1674 	}
1675 
1676 	return 0;
1677 }
1678 
1679 static void twl4030_shutdown(struct snd_pcm_substream *substream,
1680 			     struct snd_soc_dai *dai)
1681 {
1682 	struct snd_soc_codec *codec = dai->codec;
1683 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1684 
1685 	if (twl4030->master_substream == substream)
1686 		twl4030->master_substream = twl4030->slave_substream;
1687 
1688 	twl4030->slave_substream = NULL;
1689 
1690 	/* If all streams are closed, or the remaining stream has not yet
1691 	 * been configured than set the DAI as not configured. */
1692 	if (!twl4030->master_substream)
1693 		twl4030->configured = 0;
1694 	 else if (!twl4030->master_substream->runtime->channels)
1695 		twl4030->configured = 0;
1696 
1697 	 /* If the closing substream had 4 channel, do the necessary cleanup */
1698 	if (substream->runtime->channels == 4)
1699 		twl4030_tdm_enable(codec, substream->stream, 0);
1700 }
1701 
1702 static int twl4030_hw_params(struct snd_pcm_substream *substream,
1703 			     struct snd_pcm_hw_params *params,
1704 			     struct snd_soc_dai *dai)
1705 {
1706 	struct snd_soc_codec *codec = dai->codec;
1707 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1708 	u8 mode, old_mode, format, old_format;
1709 
1710 	 /* If the substream has 4 channel, do the necessary setup */
1711 	if (params_channels(params) == 4) {
1712 		format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1713 		mode = twl4030_read(codec, TWL4030_REG_CODEC_MODE);
1714 
1715 		/* Safety check: are we in the correct operating mode and
1716 		 * the interface is in TDM mode? */
1717 		if ((mode & TWL4030_OPTION_1) &&
1718 		    ((format & TWL4030_AIF_FORMAT) == TWL4030_AIF_FORMAT_TDM))
1719 			twl4030_tdm_enable(codec, substream->stream, 1);
1720 		else
1721 			return -EINVAL;
1722 	}
1723 
1724 	if (twl4030->configured)
1725 		/* Ignoring hw_params for already configured DAI */
1726 		return 0;
1727 
1728 	/* bit rate */
1729 	old_mode = twl4030_read(codec,
1730 				TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1731 	mode = old_mode & ~TWL4030_APLL_RATE;
1732 
1733 	switch (params_rate(params)) {
1734 	case 8000:
1735 		mode |= TWL4030_APLL_RATE_8000;
1736 		break;
1737 	case 11025:
1738 		mode |= TWL4030_APLL_RATE_11025;
1739 		break;
1740 	case 12000:
1741 		mode |= TWL4030_APLL_RATE_12000;
1742 		break;
1743 	case 16000:
1744 		mode |= TWL4030_APLL_RATE_16000;
1745 		break;
1746 	case 22050:
1747 		mode |= TWL4030_APLL_RATE_22050;
1748 		break;
1749 	case 24000:
1750 		mode |= TWL4030_APLL_RATE_24000;
1751 		break;
1752 	case 32000:
1753 		mode |= TWL4030_APLL_RATE_32000;
1754 		break;
1755 	case 44100:
1756 		mode |= TWL4030_APLL_RATE_44100;
1757 		break;
1758 	case 48000:
1759 		mode |= TWL4030_APLL_RATE_48000;
1760 		break;
1761 	case 96000:
1762 		mode |= TWL4030_APLL_RATE_96000;
1763 		break;
1764 	default:
1765 		dev_err(codec->dev, "%s: unknown rate %d\n", __func__,
1766 			params_rate(params));
1767 		return -EINVAL;
1768 	}
1769 
1770 	/* sample size */
1771 	old_format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1772 	format = old_format;
1773 	format &= ~TWL4030_DATA_WIDTH;
1774 	switch (params_width(params)) {
1775 	case 16:
1776 		format |= TWL4030_DATA_WIDTH_16S_16W;
1777 		break;
1778 	case 32:
1779 		format |= TWL4030_DATA_WIDTH_32S_24W;
1780 		break;
1781 	default:
1782 		dev_err(codec->dev, "%s: unsupported bits/sample %d\n",
1783 			__func__, params_width(params));
1784 		return -EINVAL;
1785 	}
1786 
1787 	if (format != old_format || mode != old_mode) {
1788 		if (twl4030->codec_powered) {
1789 			/*
1790 			 * If the codec is powered, than we need to toggle the
1791 			 * codec power.
1792 			 */
1793 			twl4030_codec_enable(codec, 0);
1794 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
1795 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1796 			twl4030_codec_enable(codec, 1);
1797 		} else {
1798 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
1799 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1800 		}
1801 	}
1802 
1803 	/* Store the important parameters for the DAI configuration and set
1804 	 * the DAI as configured */
1805 	twl4030->configured = 1;
1806 	twl4030->rate = params_rate(params);
1807 	twl4030->sample_bits = hw_param_interval(params,
1808 					SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;
1809 	twl4030->channels = params_channels(params);
1810 
1811 	/* If both playback and capture streams are open, and one of them
1812 	 * is setting the hw parameters right now (since we are here), set
1813 	 * constraints to the other stream to match the current one. */
1814 	if (twl4030->slave_substream)
1815 		twl4030_constraints(twl4030, substream);
1816 
1817 	return 0;
1818 }
1819 
1820 static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id,
1821 				  unsigned int freq, int dir)
1822 {
1823 	struct snd_soc_codec *codec = codec_dai->codec;
1824 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1825 
1826 	switch (freq) {
1827 	case 19200000:
1828 	case 26000000:
1829 	case 38400000:
1830 		break;
1831 	default:
1832 		dev_err(codec->dev, "Unsupported HFCLKIN: %u\n", freq);
1833 		return -EINVAL;
1834 	}
1835 
1836 	if ((freq / 1000) != twl4030->sysclk) {
1837 		dev_err(codec->dev,
1838 			"Mismatch in HFCLKIN: %u (configured: %u)\n",
1839 			freq, twl4030->sysclk * 1000);
1840 		return -EINVAL;
1841 	}
1842 
1843 	return 0;
1844 }
1845 
1846 static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
1847 {
1848 	struct snd_soc_codec *codec = codec_dai->codec;
1849 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1850 	u8 old_format, format;
1851 
1852 	/* get format */
1853 	old_format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1854 	format = old_format;
1855 
1856 	/* set master/slave audio interface */
1857 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1858 	case SND_SOC_DAIFMT_CBM_CFM:
1859 		format &= ~(TWL4030_AIF_SLAVE_EN);
1860 		format &= ~(TWL4030_CLK256FS_EN);
1861 		break;
1862 	case SND_SOC_DAIFMT_CBS_CFS:
1863 		format |= TWL4030_AIF_SLAVE_EN;
1864 		format |= TWL4030_CLK256FS_EN;
1865 		break;
1866 	default:
1867 		return -EINVAL;
1868 	}
1869 
1870 	/* interface format */
1871 	format &= ~TWL4030_AIF_FORMAT;
1872 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1873 	case SND_SOC_DAIFMT_I2S:
1874 		format |= TWL4030_AIF_FORMAT_CODEC;
1875 		break;
1876 	case SND_SOC_DAIFMT_DSP_A:
1877 		format |= TWL4030_AIF_FORMAT_TDM;
1878 		break;
1879 	default:
1880 		return -EINVAL;
1881 	}
1882 
1883 	if (format != old_format) {
1884 		if (twl4030->codec_powered) {
1885 			/*
1886 			 * If the codec is powered, than we need to toggle the
1887 			 * codec power.
1888 			 */
1889 			twl4030_codec_enable(codec, 0);
1890 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1891 			twl4030_codec_enable(codec, 1);
1892 		} else {
1893 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1894 		}
1895 	}
1896 
1897 	return 0;
1898 }
1899 
1900 static int twl4030_set_tristate(struct snd_soc_dai *dai, int tristate)
1901 {
1902 	struct snd_soc_codec *codec = dai->codec;
1903 	u8 reg = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1904 
1905 	if (tristate)
1906 		reg |= TWL4030_AIF_TRI_EN;
1907 	else
1908 		reg &= ~TWL4030_AIF_TRI_EN;
1909 
1910 	return twl4030_write(codec, TWL4030_REG_AUDIO_IF, reg);
1911 }
1912 
1913 /* In case of voice mode, the RX1 L(VRX) for downlink and the TX2 L/R
1914  * (VTXL, VTXR) for uplink has to be enabled/disabled. */
1915 static void twl4030_voice_enable(struct snd_soc_codec *codec, int direction,
1916 				 int enable)
1917 {
1918 	u8 reg, mask;
1919 
1920 	reg = twl4030_read(codec, TWL4030_REG_OPTION);
1921 
1922 	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1923 		mask = TWL4030_ARXL1_VRX_EN;
1924 	else
1925 		mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1926 
1927 	if (enable)
1928 		reg |= mask;
1929 	else
1930 		reg &= ~mask;
1931 
1932 	twl4030_write(codec, TWL4030_REG_OPTION, reg);
1933 }
1934 
1935 static int twl4030_voice_startup(struct snd_pcm_substream *substream,
1936 				 struct snd_soc_dai *dai)
1937 {
1938 	struct snd_soc_codec *codec = dai->codec;
1939 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1940 	u8 mode;
1941 
1942 	/* If the system master clock is not 26MHz, the voice PCM interface is
1943 	 * not available.
1944 	 */
1945 	if (twl4030->sysclk != 26000) {
1946 		dev_err(codec->dev,
1947 			"%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n",
1948 			__func__, twl4030->sysclk);
1949 		return -EINVAL;
1950 	}
1951 
1952 	/* If the codec mode is not option2, the voice PCM interface is not
1953 	 * available.
1954 	 */
1955 	mode = twl4030_read(codec, TWL4030_REG_CODEC_MODE)
1956 		& TWL4030_OPT_MODE;
1957 
1958 	if (mode != TWL4030_OPTION_2) {
1959 		dev_err(codec->dev, "%s: the codec mode is not option2\n",
1960 			__func__);
1961 		return -EINVAL;
1962 	}
1963 
1964 	return 0;
1965 }
1966 
1967 static void twl4030_voice_shutdown(struct snd_pcm_substream *substream,
1968 				   struct snd_soc_dai *dai)
1969 {
1970 	struct snd_soc_codec *codec = dai->codec;
1971 
1972 	/* Enable voice digital filters */
1973 	twl4030_voice_enable(codec, substream->stream, 0);
1974 }
1975 
1976 static int twl4030_voice_hw_params(struct snd_pcm_substream *substream,
1977 				   struct snd_pcm_hw_params *params,
1978 				   struct snd_soc_dai *dai)
1979 {
1980 	struct snd_soc_codec *codec = dai->codec;
1981 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1982 	u8 old_mode, mode;
1983 
1984 	/* Enable voice digital filters */
1985 	twl4030_voice_enable(codec, substream->stream, 1);
1986 
1987 	/* bit rate */
1988 	old_mode = twl4030_read(codec,
1989 				TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1990 	mode = old_mode;
1991 
1992 	switch (params_rate(params)) {
1993 	case 8000:
1994 		mode &= ~(TWL4030_SEL_16K);
1995 		break;
1996 	case 16000:
1997 		mode |= TWL4030_SEL_16K;
1998 		break;
1999 	default:
2000 		dev_err(codec->dev, "%s: unknown rate %d\n", __func__,
2001 			params_rate(params));
2002 		return -EINVAL;
2003 	}
2004 
2005 	if (mode != old_mode) {
2006 		if (twl4030->codec_powered) {
2007 			/*
2008 			 * If the codec is powered, than we need to toggle the
2009 			 * codec power.
2010 			 */
2011 			twl4030_codec_enable(codec, 0);
2012 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
2013 			twl4030_codec_enable(codec, 1);
2014 		} else {
2015 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
2016 		}
2017 	}
2018 
2019 	return 0;
2020 }
2021 
2022 static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
2023 					int clk_id, unsigned int freq, int dir)
2024 {
2025 	struct snd_soc_codec *codec = codec_dai->codec;
2026 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
2027 
2028 	if (freq != 26000000) {
2029 		dev_err(codec->dev,
2030 			"%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n",
2031 			__func__, freq / 1000);
2032 		return -EINVAL;
2033 	}
2034 	if ((freq / 1000) != twl4030->sysclk) {
2035 		dev_err(codec->dev,
2036 			"Mismatch in HFCLKIN: %u (configured: %u)\n",
2037 			freq, twl4030->sysclk * 1000);
2038 		return -EINVAL;
2039 	}
2040 	return 0;
2041 }
2042 
2043 static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
2044 				     unsigned int fmt)
2045 {
2046 	struct snd_soc_codec *codec = codec_dai->codec;
2047 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
2048 	u8 old_format, format;
2049 
2050 	/* get format */
2051 	old_format = twl4030_read(codec, TWL4030_REG_VOICE_IF);
2052 	format = old_format;
2053 
2054 	/* set master/slave audio interface */
2055 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
2056 	case SND_SOC_DAIFMT_CBM_CFM:
2057 		format &= ~(TWL4030_VIF_SLAVE_EN);
2058 		break;
2059 	case SND_SOC_DAIFMT_CBS_CFS:
2060 		format |= TWL4030_VIF_SLAVE_EN;
2061 		break;
2062 	default:
2063 		return -EINVAL;
2064 	}
2065 
2066 	/* clock inversion */
2067 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
2068 	case SND_SOC_DAIFMT_IB_NF:
2069 		format &= ~(TWL4030_VIF_FORMAT);
2070 		break;
2071 	case SND_SOC_DAIFMT_NB_IF:
2072 		format |= TWL4030_VIF_FORMAT;
2073 		break;
2074 	default:
2075 		return -EINVAL;
2076 	}
2077 
2078 	if (format != old_format) {
2079 		if (twl4030->codec_powered) {
2080 			/*
2081 			 * If the codec is powered, than we need to toggle the
2082 			 * codec power.
2083 			 */
2084 			twl4030_codec_enable(codec, 0);
2085 			twl4030_write(codec, TWL4030_REG_VOICE_IF, format);
2086 			twl4030_codec_enable(codec, 1);
2087 		} else {
2088 			twl4030_write(codec, TWL4030_REG_VOICE_IF, format);
2089 		}
2090 	}
2091 
2092 	return 0;
2093 }
2094 
2095 static int twl4030_voice_set_tristate(struct snd_soc_dai *dai, int tristate)
2096 {
2097 	struct snd_soc_codec *codec = dai->codec;
2098 	u8 reg = twl4030_read(codec, TWL4030_REG_VOICE_IF);
2099 
2100 	if (tristate)
2101 		reg |= TWL4030_VIF_TRI_EN;
2102 	else
2103 		reg &= ~TWL4030_VIF_TRI_EN;
2104 
2105 	return twl4030_write(codec, TWL4030_REG_VOICE_IF, reg);
2106 }
2107 
2108 #define TWL4030_RATES	 (SNDRV_PCM_RATE_8000_48000)
2109 #define TWL4030_FORMATS	 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2110 
2111 static const struct snd_soc_dai_ops twl4030_dai_hifi_ops = {
2112 	.startup	= twl4030_startup,
2113 	.shutdown	= twl4030_shutdown,
2114 	.hw_params	= twl4030_hw_params,
2115 	.set_sysclk	= twl4030_set_dai_sysclk,
2116 	.set_fmt	= twl4030_set_dai_fmt,
2117 	.set_tristate	= twl4030_set_tristate,
2118 };
2119 
2120 static const struct snd_soc_dai_ops twl4030_dai_voice_ops = {
2121 	.startup	= twl4030_voice_startup,
2122 	.shutdown	= twl4030_voice_shutdown,
2123 	.hw_params	= twl4030_voice_hw_params,
2124 	.set_sysclk	= twl4030_voice_set_dai_sysclk,
2125 	.set_fmt	= twl4030_voice_set_dai_fmt,
2126 	.set_tristate	= twl4030_voice_set_tristate,
2127 };
2128 
2129 static struct snd_soc_dai_driver twl4030_dai[] = {
2130 {
2131 	.name = "twl4030-hifi",
2132 	.playback = {
2133 		.stream_name = "HiFi Playback",
2134 		.channels_min = 2,
2135 		.channels_max = 4,
2136 		.rates = TWL4030_RATES | SNDRV_PCM_RATE_96000,
2137 		.formats = TWL4030_FORMATS,
2138 		.sig_bits = 24,},
2139 	.capture = {
2140 		.stream_name = "HiFi Capture",
2141 		.channels_min = 2,
2142 		.channels_max = 4,
2143 		.rates = TWL4030_RATES,
2144 		.formats = TWL4030_FORMATS,
2145 		.sig_bits = 24,},
2146 	.ops = &twl4030_dai_hifi_ops,
2147 },
2148 {
2149 	.name = "twl4030-voice",
2150 	.playback = {
2151 		.stream_name = "Voice Playback",
2152 		.channels_min = 1,
2153 		.channels_max = 1,
2154 		.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2155 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
2156 	.capture = {
2157 		.stream_name = "Voice Capture",
2158 		.channels_min = 1,
2159 		.channels_max = 2,
2160 		.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2161 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
2162 	.ops = &twl4030_dai_voice_ops,
2163 },
2164 };
2165 
2166 static int twl4030_soc_probe(struct snd_soc_codec *codec)
2167 {
2168 	struct twl4030_priv *twl4030;
2169 
2170 	twl4030 = devm_kzalloc(codec->dev, sizeof(struct twl4030_priv),
2171 			       GFP_KERNEL);
2172 	if (!twl4030)
2173 		return -ENOMEM;
2174 	snd_soc_codec_set_drvdata(codec, twl4030);
2175 	/* Set the defaults, and power up the codec */
2176 	twl4030->sysclk = twl4030_audio_get_mclk() / 1000;
2177 
2178 	twl4030_init_chip(codec);
2179 
2180 	return 0;
2181 }
2182 
2183 static int twl4030_soc_remove(struct snd_soc_codec *codec)
2184 {
2185 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
2186 	struct twl4030_codec_data *pdata = twl4030->pdata;
2187 
2188 	if (pdata && pdata->hs_extmute && gpio_is_valid(pdata->hs_extmute_gpio))
2189 		gpio_free(pdata->hs_extmute_gpio);
2190 
2191 	return 0;
2192 }
2193 
2194 static struct snd_soc_codec_driver soc_codec_dev_twl4030 = {
2195 	.probe = twl4030_soc_probe,
2196 	.remove = twl4030_soc_remove,
2197 	.read = twl4030_read,
2198 	.write = twl4030_write,
2199 	.set_bias_level = twl4030_set_bias_level,
2200 	.idle_bias_off = true,
2201 
2202 	.component_driver = {
2203 		.controls		= twl4030_snd_controls,
2204 		.num_controls		= ARRAY_SIZE(twl4030_snd_controls),
2205 		.dapm_widgets		= twl4030_dapm_widgets,
2206 		.num_dapm_widgets	= ARRAY_SIZE(twl4030_dapm_widgets),
2207 		.dapm_routes		= intercon,
2208 		.num_dapm_routes	= ARRAY_SIZE(intercon),
2209 	},
2210 };
2211 
2212 static int twl4030_codec_probe(struct platform_device *pdev)
2213 {
2214 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl4030,
2215 				      twl4030_dai, ARRAY_SIZE(twl4030_dai));
2216 }
2217 
2218 static int twl4030_codec_remove(struct platform_device *pdev)
2219 {
2220 	snd_soc_unregister_codec(&pdev->dev);
2221 	return 0;
2222 }
2223 
2224 MODULE_ALIAS("platform:twl4030-codec");
2225 
2226 static struct platform_driver twl4030_codec_driver = {
2227 	.probe		= twl4030_codec_probe,
2228 	.remove		= twl4030_codec_remove,
2229 	.driver		= {
2230 		.name	= "twl4030-codec",
2231 	},
2232 };
2233 
2234 module_platform_driver(twl4030_codec_driver);
2235 
2236 MODULE_DESCRIPTION("ASoC TWL4030 codec driver");
2237 MODULE_AUTHOR("Steve Sakoman");
2238 MODULE_LICENSE("GPL");
2239