xref: /openbmc/linux/sound/soc/codecs/twl4030.c (revision 6774def6)
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 unsigned int twl4030_dapm_dbypass_tlv[] = {
528 	TLV_DB_RANGE_HEAD(3),
529 	0, 1, TLV_DB_SCALE_ITEM(-3000, 600, 1),
530 	2, 3, TLV_DB_SCALE_ITEM(-2400, 0, 0),
531 	4, 7, TLV_DB_SCALE_ITEM(-1800, 600, 0),
532 };
533 
534 /* Digital bypass left (TX1L -> RX2L) */
535 static const struct snd_kcontrol_new twl4030_dapm_dbypassl_control =
536 	SOC_DAPM_SINGLE_TLV("Volume",
537 			TWL4030_REG_ATX2ARXPGA, 3, 7, 0,
538 			twl4030_dapm_dbypass_tlv);
539 
540 /* Digital bypass right (TX1R -> RX2R) */
541 static const struct snd_kcontrol_new twl4030_dapm_dbypassr_control =
542 	SOC_DAPM_SINGLE_TLV("Volume",
543 			TWL4030_REG_ATX2ARXPGA, 0, 7, 0,
544 			twl4030_dapm_dbypass_tlv);
545 
546 /*
547  * Voice Sidetone GAIN volume control:
548  * from -51 to -10 dB in 1 dB steps (mute instead of -51 dB)
549  */
550 static DECLARE_TLV_DB_SCALE(twl4030_dapm_dbypassv_tlv, -5100, 100, 1);
551 
552 /* Digital bypass voice: sidetone (VUL -> VDL)*/
553 static const struct snd_kcontrol_new twl4030_dapm_dbypassv_control =
554 	SOC_DAPM_SINGLE_TLV("Volume",
555 			TWL4030_REG_VSTPGA, 0, 0x29, 0,
556 			twl4030_dapm_dbypassv_tlv);
557 
558 /*
559  * Output PGA builder:
560  * Handle the muting and unmuting of the given output (turning off the
561  * amplifier associated with the output pin)
562  * On mute bypass the reg_cache and write 0 to the register
563  * On unmute: restore the register content from the reg_cache
564  * Outputs handled in this way:  Earpiece, PreDrivL/R, CarkitL/R
565  */
566 #define TWL4030_OUTPUT_PGA(pin_name, reg, mask)				\
567 static int pin_name##pga_event(struct snd_soc_dapm_widget *w,		\
568 			       struct snd_kcontrol *kcontrol, int event) \
569 {									\
570 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec); \
571 									\
572 	switch (event) {						\
573 	case SND_SOC_DAPM_POST_PMU:					\
574 		twl4030->pin_name##_enabled = 1;			\
575 		twl4030_write(w->codec, reg, twl4030_read(w->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 	switch (event) {
625 	case SND_SOC_DAPM_POST_PMU:
626 		handsfree_ramp(w->codec, TWL4030_REG_HFL_CTL, 1);
627 		break;
628 	case SND_SOC_DAPM_POST_PMD:
629 		handsfree_ramp(w->codec, TWL4030_REG_HFL_CTL, 0);
630 		break;
631 	}
632 	return 0;
633 }
634 
635 static int handsfreerpga_event(struct snd_soc_dapm_widget *w,
636 			       struct snd_kcontrol *kcontrol, int event)
637 {
638 	switch (event) {
639 	case SND_SOC_DAPM_POST_PMU:
640 		handsfree_ramp(w->codec, TWL4030_REG_HFR_CTL, 1);
641 		break;
642 	case SND_SOC_DAPM_POST_PMD:
643 		handsfree_ramp(w->codec, TWL4030_REG_HFR_CTL, 0);
644 		break;
645 	}
646 	return 0;
647 }
648 
649 static int vibramux_event(struct snd_soc_dapm_widget *w,
650 			  struct snd_kcontrol *kcontrol, int event)
651 {
652 	twl4030_write(w->codec, TWL4030_REG_VIBRA_SET, 0xff);
653 	return 0;
654 }
655 
656 static int apll_event(struct snd_soc_dapm_widget *w,
657 		      struct snd_kcontrol *kcontrol, int event)
658 {
659 	switch (event) {
660 	case SND_SOC_DAPM_PRE_PMU:
661 		twl4030_apll_enable(w->codec, 1);
662 		break;
663 	case SND_SOC_DAPM_POST_PMD:
664 		twl4030_apll_enable(w->codec, 0);
665 		break;
666 	}
667 	return 0;
668 }
669 
670 static int aif_event(struct snd_soc_dapm_widget *w,
671 		     struct snd_kcontrol *kcontrol, int event)
672 {
673 	u8 audio_if;
674 
675 	audio_if = twl4030_read(w->codec, TWL4030_REG_AUDIO_IF);
676 	switch (event) {
677 	case SND_SOC_DAPM_PRE_PMU:
678 		/* Enable AIF */
679 		/* enable the PLL before we use it to clock the DAI */
680 		twl4030_apll_enable(w->codec, 1);
681 
682 		twl4030_write(w->codec, TWL4030_REG_AUDIO_IF,
683 			      audio_if | TWL4030_AIF_EN);
684 		break;
685 	case SND_SOC_DAPM_POST_PMD:
686 		/* disable the DAI before we stop it's source PLL */
687 		twl4030_write(w->codec, TWL4030_REG_AUDIO_IF,
688 			      audio_if &  ~TWL4030_AIF_EN);
689 		twl4030_apll_enable(w->codec, 0);
690 		break;
691 	}
692 	return 0;
693 }
694 
695 static void headset_ramp(struct snd_soc_codec *codec, int ramp)
696 {
697 	unsigned char hs_gain, hs_pop;
698 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
699 	struct twl4030_codec_data *pdata = twl4030->pdata;
700 	/* Base values for ramp delay calculation: 2^19 - 2^26 */
701 	unsigned int ramp_base[] = {524288, 1048576, 2097152, 4194304,
702 				    8388608, 16777216, 33554432, 67108864};
703 	unsigned int delay;
704 
705 	hs_gain = twl4030_read(codec, TWL4030_REG_HS_GAIN_SET);
706 	hs_pop = twl4030_read(codec, TWL4030_REG_HS_POPN_SET);
707 	delay = (ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] /
708 		twl4030->sysclk) + 1;
709 
710 	/* Enable external mute control, this dramatically reduces
711 	 * the pop-noise */
712 	if (pdata && pdata->hs_extmute) {
713 		if (gpio_is_valid(pdata->hs_extmute_gpio)) {
714 			gpio_set_value(pdata->hs_extmute_gpio, 1);
715 		} else {
716 			hs_pop |= TWL4030_EXTMUTE;
717 			twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
718 		}
719 	}
720 
721 	if (ramp) {
722 		/* Headset ramp-up according to the TRM */
723 		hs_pop |= TWL4030_VMID_EN;
724 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
725 		/* Actually write to the register */
726 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain,
727 				 TWL4030_REG_HS_GAIN_SET);
728 		hs_pop |= TWL4030_RAMP_EN;
729 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
730 		/* Wait ramp delay time + 1, so the VMID can settle */
731 		twl4030_wait_ms(delay);
732 	} else {
733 		/* Headset ramp-down _not_ according to
734 		 * the TRM, but in a way that it is working */
735 		hs_pop &= ~TWL4030_RAMP_EN;
736 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
737 		/* Wait ramp delay time + 1, so the VMID can settle */
738 		twl4030_wait_ms(delay);
739 		/* Bypass the reg_cache to mute the headset */
740 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain & (~0x0f),
741 				 TWL4030_REG_HS_GAIN_SET);
742 
743 		hs_pop &= ~TWL4030_VMID_EN;
744 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
745 	}
746 
747 	/* Disable external mute */
748 	if (pdata && pdata->hs_extmute) {
749 		if (gpio_is_valid(pdata->hs_extmute_gpio)) {
750 			gpio_set_value(pdata->hs_extmute_gpio, 0);
751 		} else {
752 			hs_pop &= ~TWL4030_EXTMUTE;
753 			twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
754 		}
755 	}
756 }
757 
758 static int headsetlpga_event(struct snd_soc_dapm_widget *w,
759 			     struct snd_kcontrol *kcontrol, int event)
760 {
761 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec);
762 
763 	switch (event) {
764 	case SND_SOC_DAPM_POST_PMU:
765 		/* Do the ramp-up only once */
766 		if (!twl4030->hsr_enabled)
767 			headset_ramp(w->codec, 1);
768 
769 		twl4030->hsl_enabled = 1;
770 		break;
771 	case SND_SOC_DAPM_POST_PMD:
772 		/* Do the ramp-down only if both headsetL/R is disabled */
773 		if (!twl4030->hsr_enabled)
774 			headset_ramp(w->codec, 0);
775 
776 		twl4030->hsl_enabled = 0;
777 		break;
778 	}
779 	return 0;
780 }
781 
782 static int headsetrpga_event(struct snd_soc_dapm_widget *w,
783 			     struct snd_kcontrol *kcontrol, int event)
784 {
785 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec);
786 
787 	switch (event) {
788 	case SND_SOC_DAPM_POST_PMU:
789 		/* Do the ramp-up only once */
790 		if (!twl4030->hsl_enabled)
791 			headset_ramp(w->codec, 1);
792 
793 		twl4030->hsr_enabled = 1;
794 		break;
795 	case SND_SOC_DAPM_POST_PMD:
796 		/* Do the ramp-down only if both headsetL/R is disabled */
797 		if (!twl4030->hsl_enabled)
798 			headset_ramp(w->codec, 0);
799 
800 		twl4030->hsr_enabled = 0;
801 		break;
802 	}
803 	return 0;
804 }
805 
806 static int digimic_event(struct snd_soc_dapm_widget *w,
807 			 struct snd_kcontrol *kcontrol, int event)
808 {
809 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec);
810 	struct twl4030_codec_data *pdata = twl4030->pdata;
811 
812 	if (pdata && pdata->digimic_delay)
813 		twl4030_wait_ms(pdata->digimic_delay);
814 	return 0;
815 }
816 
817 /*
818  * Some of the gain controls in TWL (mostly those which are associated with
819  * the outputs) are implemented in an interesting way:
820  * 0x0 : Power down (mute)
821  * 0x1 : 6dB
822  * 0x2 : 0 dB
823  * 0x3 : -6 dB
824  * Inverting not going to help with these.
825  * Custom volsw and volsw_2r get/put functions to handle these gain bits.
826  */
827 static int snd_soc_get_volsw_twl4030(struct snd_kcontrol *kcontrol,
828 				     struct snd_ctl_elem_value *ucontrol)
829 {
830 	struct soc_mixer_control *mc =
831 		(struct soc_mixer_control *)kcontrol->private_value;
832 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
833 	unsigned int reg = mc->reg;
834 	unsigned int shift = mc->shift;
835 	unsigned int rshift = mc->rshift;
836 	int max = mc->max;
837 	int mask = (1 << fls(max)) - 1;
838 
839 	ucontrol->value.integer.value[0] =
840 		(snd_soc_read(codec, reg) >> shift) & mask;
841 	if (ucontrol->value.integer.value[0])
842 		ucontrol->value.integer.value[0] =
843 			max + 1 - ucontrol->value.integer.value[0];
844 
845 	if (shift != rshift) {
846 		ucontrol->value.integer.value[1] =
847 			(snd_soc_read(codec, reg) >> rshift) & mask;
848 		if (ucontrol->value.integer.value[1])
849 			ucontrol->value.integer.value[1] =
850 				max + 1 - ucontrol->value.integer.value[1];
851 	}
852 
853 	return 0;
854 }
855 
856 static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol,
857 				     struct snd_ctl_elem_value *ucontrol)
858 {
859 	struct soc_mixer_control *mc =
860 		(struct soc_mixer_control *)kcontrol->private_value;
861 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
862 	unsigned int reg = mc->reg;
863 	unsigned int shift = mc->shift;
864 	unsigned int rshift = mc->rshift;
865 	int max = mc->max;
866 	int mask = (1 << fls(max)) - 1;
867 	unsigned short val, val2, val_mask;
868 
869 	val = (ucontrol->value.integer.value[0] & mask);
870 
871 	val_mask = mask << shift;
872 	if (val)
873 		val = max + 1 - val;
874 	val = val << shift;
875 	if (shift != rshift) {
876 		val2 = (ucontrol->value.integer.value[1] & mask);
877 		val_mask |= mask << rshift;
878 		if (val2)
879 			val2 = max + 1 - val2;
880 		val |= val2 << rshift;
881 	}
882 	return snd_soc_update_bits(codec, reg, val_mask, val);
883 }
884 
885 static int snd_soc_get_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
886 					struct snd_ctl_elem_value *ucontrol)
887 {
888 	struct soc_mixer_control *mc =
889 		(struct soc_mixer_control *)kcontrol->private_value;
890 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
891 	unsigned int reg = mc->reg;
892 	unsigned int reg2 = mc->rreg;
893 	unsigned int shift = mc->shift;
894 	int max = mc->max;
895 	int mask = (1<<fls(max))-1;
896 
897 	ucontrol->value.integer.value[0] =
898 		(snd_soc_read(codec, reg) >> shift) & mask;
899 	ucontrol->value.integer.value[1] =
900 		(snd_soc_read(codec, reg2) >> shift) & mask;
901 
902 	if (ucontrol->value.integer.value[0])
903 		ucontrol->value.integer.value[0] =
904 			max + 1 - ucontrol->value.integer.value[0];
905 	if (ucontrol->value.integer.value[1])
906 		ucontrol->value.integer.value[1] =
907 			max + 1 - ucontrol->value.integer.value[1];
908 
909 	return 0;
910 }
911 
912 static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
913 					struct snd_ctl_elem_value *ucontrol)
914 {
915 	struct soc_mixer_control *mc =
916 		(struct soc_mixer_control *)kcontrol->private_value;
917 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
918 	unsigned int reg = mc->reg;
919 	unsigned int reg2 = mc->rreg;
920 	unsigned int shift = mc->shift;
921 	int max = mc->max;
922 	int mask = (1 << fls(max)) - 1;
923 	int err;
924 	unsigned short val, val2, val_mask;
925 
926 	val_mask = mask << shift;
927 	val = (ucontrol->value.integer.value[0] & mask);
928 	val2 = (ucontrol->value.integer.value[1] & mask);
929 
930 	if (val)
931 		val = max + 1 - val;
932 	if (val2)
933 		val2 = max + 1 - val2;
934 
935 	val = val << shift;
936 	val2 = val2 << shift;
937 
938 	err = snd_soc_update_bits(codec, reg, val_mask, val);
939 	if (err < 0)
940 		return err;
941 
942 	err = snd_soc_update_bits(codec, reg2, val_mask, val2);
943 	return err;
944 }
945 
946 /* Codec operation modes */
947 static const char *twl4030_op_modes_texts[] = {
948 	"Option 2 (voice/audio)", "Option 1 (audio)"
949 };
950 
951 static SOC_ENUM_SINGLE_DECL(twl4030_op_modes_enum,
952 			    TWL4030_REG_CODEC_MODE, 0,
953 			    twl4030_op_modes_texts);
954 
955 static int snd_soc_put_twl4030_opmode_enum_double(struct snd_kcontrol *kcontrol,
956 	struct snd_ctl_elem_value *ucontrol)
957 {
958 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
959 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
960 
961 	if (twl4030->configured) {
962 		dev_err(codec->dev,
963 			"operation mode cannot be changed on-the-fly\n");
964 		return -EBUSY;
965 	}
966 
967 	return snd_soc_put_enum_double(kcontrol, ucontrol);
968 }
969 
970 /*
971  * FGAIN volume control:
972  * from -62 to 0 dB in 1 dB steps (mute instead of -63 dB)
973  */
974 static DECLARE_TLV_DB_SCALE(digital_fine_tlv, -6300, 100, 1);
975 
976 /*
977  * CGAIN volume control:
978  * 0 dB to 12 dB in 6 dB steps
979  * value 2 and 3 means 12 dB
980  */
981 static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0, 600, 0);
982 
983 /*
984  * Voice Downlink GAIN volume control:
985  * from -37 to 12 dB in 1 dB steps (mute instead of -37 dB)
986  */
987 static DECLARE_TLV_DB_SCALE(digital_voice_downlink_tlv, -3700, 100, 1);
988 
989 /*
990  * Analog playback gain
991  * -24 dB to 12 dB in 2 dB steps
992  */
993 static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0);
994 
995 /*
996  * Gain controls tied to outputs
997  * -6 dB to 6 dB in 6 dB steps (mute instead of -12)
998  */
999 static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1);
1000 
1001 /*
1002  * Gain control for earpiece amplifier
1003  * 0 dB to 12 dB in 6 dB steps (mute instead of -6)
1004  */
1005 static DECLARE_TLV_DB_SCALE(output_ear_tvl, -600, 600, 1);
1006 
1007 /*
1008  * Capture gain after the ADCs
1009  * from 0 dB to 31 dB in 1 dB steps
1010  */
1011 static DECLARE_TLV_DB_SCALE(digital_capture_tlv, 0, 100, 0);
1012 
1013 /*
1014  * Gain control for input amplifiers
1015  * 0 dB to 30 dB in 6 dB steps
1016  */
1017 static DECLARE_TLV_DB_SCALE(input_gain_tlv, 0, 600, 0);
1018 
1019 /* AVADC clock priority */
1020 static const char *twl4030_avadc_clk_priority_texts[] = {
1021 	"Voice high priority", "HiFi high priority"
1022 };
1023 
1024 static SOC_ENUM_SINGLE_DECL(twl4030_avadc_clk_priority_enum,
1025 			    TWL4030_REG_AVADC_CTL, 2,
1026 			    twl4030_avadc_clk_priority_texts);
1027 
1028 static const char *twl4030_rampdelay_texts[] = {
1029 	"27/20/14 ms", "55/40/27 ms", "109/81/55 ms", "218/161/109 ms",
1030 	"437/323/218 ms", "874/645/437 ms", "1748/1291/874 ms",
1031 	"3495/2581/1748 ms"
1032 };
1033 
1034 static SOC_ENUM_SINGLE_DECL(twl4030_rampdelay_enum,
1035 			    TWL4030_REG_HS_POPN_SET, 2,
1036 			    twl4030_rampdelay_texts);
1037 
1038 /* Vibra H-bridge direction mode */
1039 static const char *twl4030_vibradirmode_texts[] = {
1040 	"Vibra H-bridge direction", "Audio data MSB",
1041 };
1042 
1043 static SOC_ENUM_SINGLE_DECL(twl4030_vibradirmode_enum,
1044 			    TWL4030_REG_VIBRA_CTL, 5,
1045 			    twl4030_vibradirmode_texts);
1046 
1047 /* Vibra H-bridge direction */
1048 static const char *twl4030_vibradir_texts[] = {
1049 	"Positive polarity", "Negative polarity",
1050 };
1051 
1052 static SOC_ENUM_SINGLE_DECL(twl4030_vibradir_enum,
1053 			    TWL4030_REG_VIBRA_CTL, 1,
1054 			    twl4030_vibradir_texts);
1055 
1056 /* Digimic Left and right swapping */
1057 static const char *twl4030_digimicswap_texts[] = {
1058 	"Not swapped", "Swapped",
1059 };
1060 
1061 static SOC_ENUM_SINGLE_DECL(twl4030_digimicswap_enum,
1062 			    TWL4030_REG_MISC_SET_1, 0,
1063 			    twl4030_digimicswap_texts);
1064 
1065 static const struct snd_kcontrol_new twl4030_snd_controls[] = {
1066 	/* Codec operation mode control */
1067 	SOC_ENUM_EXT("Codec Operation Mode", twl4030_op_modes_enum,
1068 		snd_soc_get_enum_double,
1069 		snd_soc_put_twl4030_opmode_enum_double),
1070 
1071 	/* Common playback gain controls */
1072 	SOC_DOUBLE_R_TLV("DAC1 Digital Fine Playback Volume",
1073 		TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1074 		0, 0x3f, 0, digital_fine_tlv),
1075 	SOC_DOUBLE_R_TLV("DAC2 Digital Fine Playback Volume",
1076 		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1077 		0, 0x3f, 0, digital_fine_tlv),
1078 
1079 	SOC_DOUBLE_R_TLV("DAC1 Digital Coarse Playback Volume",
1080 		TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1081 		6, 0x2, 0, digital_coarse_tlv),
1082 	SOC_DOUBLE_R_TLV("DAC2 Digital Coarse Playback Volume",
1083 		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1084 		6, 0x2, 0, digital_coarse_tlv),
1085 
1086 	SOC_DOUBLE_R_TLV("DAC1 Analog Playback Volume",
1087 		TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1088 		3, 0x12, 1, analog_tlv),
1089 	SOC_DOUBLE_R_TLV("DAC2 Analog Playback Volume",
1090 		TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1091 		3, 0x12, 1, analog_tlv),
1092 	SOC_DOUBLE_R("DAC1 Analog Playback Switch",
1093 		TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1094 		1, 1, 0),
1095 	SOC_DOUBLE_R("DAC2 Analog Playback Switch",
1096 		TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1097 		1, 1, 0),
1098 
1099 	/* Common voice downlink gain controls */
1100 	SOC_SINGLE_TLV("DAC Voice Digital Downlink Volume",
1101 		TWL4030_REG_VRXPGA, 0, 0x31, 0, digital_voice_downlink_tlv),
1102 
1103 	SOC_SINGLE_TLV("DAC Voice Analog Downlink Volume",
1104 		TWL4030_REG_VDL_APGA_CTL, 3, 0x12, 1, analog_tlv),
1105 
1106 	SOC_SINGLE("DAC Voice Analog Downlink Switch",
1107 		TWL4030_REG_VDL_APGA_CTL, 1, 1, 0),
1108 
1109 	/* Separate output gain controls */
1110 	SOC_DOUBLE_R_EXT_TLV("PreDriv Playback Volume",
1111 		TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL,
1112 		4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1113 		snd_soc_put_volsw_r2_twl4030, output_tvl),
1114 
1115 	SOC_DOUBLE_EXT_TLV("Headset Playback Volume",
1116 		TWL4030_REG_HS_GAIN_SET, 0, 2, 3, 0, snd_soc_get_volsw_twl4030,
1117 		snd_soc_put_volsw_twl4030, output_tvl),
1118 
1119 	SOC_DOUBLE_R_EXT_TLV("Carkit Playback Volume",
1120 		TWL4030_REG_PRECKL_CTL, TWL4030_REG_PRECKR_CTL,
1121 		4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1122 		snd_soc_put_volsw_r2_twl4030, output_tvl),
1123 
1124 	SOC_SINGLE_EXT_TLV("Earpiece Playback Volume",
1125 		TWL4030_REG_EAR_CTL, 4, 3, 0, snd_soc_get_volsw_twl4030,
1126 		snd_soc_put_volsw_twl4030, output_ear_tvl),
1127 
1128 	/* Common capture gain controls */
1129 	SOC_DOUBLE_R_TLV("TX1 Digital Capture Volume",
1130 		TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA,
1131 		0, 0x1f, 0, digital_capture_tlv),
1132 	SOC_DOUBLE_R_TLV("TX2 Digital Capture Volume",
1133 		TWL4030_REG_AVTXL2PGA, TWL4030_REG_AVTXR2PGA,
1134 		0, 0x1f, 0, digital_capture_tlv),
1135 
1136 	SOC_DOUBLE_TLV("Analog Capture Volume", TWL4030_REG_ANAMIC_GAIN,
1137 		0, 3, 5, 0, input_gain_tlv),
1138 
1139 	SOC_ENUM("AVADC Clock Priority", twl4030_avadc_clk_priority_enum),
1140 
1141 	SOC_ENUM("HS ramp delay", twl4030_rampdelay_enum),
1142 
1143 	SOC_ENUM("Vibra H-bridge mode", twl4030_vibradirmode_enum),
1144 	SOC_ENUM("Vibra H-bridge direction", twl4030_vibradir_enum),
1145 
1146 	SOC_ENUM("Digimic LR Swap", twl4030_digimicswap_enum),
1147 };
1148 
1149 static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
1150 	/* Left channel inputs */
1151 	SND_SOC_DAPM_INPUT("MAINMIC"),
1152 	SND_SOC_DAPM_INPUT("HSMIC"),
1153 	SND_SOC_DAPM_INPUT("AUXL"),
1154 	SND_SOC_DAPM_INPUT("CARKITMIC"),
1155 	/* Right channel inputs */
1156 	SND_SOC_DAPM_INPUT("SUBMIC"),
1157 	SND_SOC_DAPM_INPUT("AUXR"),
1158 	/* Digital microphones (Stereo) */
1159 	SND_SOC_DAPM_INPUT("DIGIMIC0"),
1160 	SND_SOC_DAPM_INPUT("DIGIMIC1"),
1161 
1162 	/* Outputs */
1163 	SND_SOC_DAPM_OUTPUT("EARPIECE"),
1164 	SND_SOC_DAPM_OUTPUT("PREDRIVEL"),
1165 	SND_SOC_DAPM_OUTPUT("PREDRIVER"),
1166 	SND_SOC_DAPM_OUTPUT("HSOL"),
1167 	SND_SOC_DAPM_OUTPUT("HSOR"),
1168 	SND_SOC_DAPM_OUTPUT("CARKITL"),
1169 	SND_SOC_DAPM_OUTPUT("CARKITR"),
1170 	SND_SOC_DAPM_OUTPUT("HFL"),
1171 	SND_SOC_DAPM_OUTPUT("HFR"),
1172 	SND_SOC_DAPM_OUTPUT("VIBRA"),
1173 
1174 	/* AIF and APLL clocks for running DAIs (including loopback) */
1175 	SND_SOC_DAPM_OUTPUT("Virtual HiFi OUT"),
1176 	SND_SOC_DAPM_INPUT("Virtual HiFi IN"),
1177 	SND_SOC_DAPM_OUTPUT("Virtual Voice OUT"),
1178 
1179 	/* DACs */
1180 	SND_SOC_DAPM_DAC("DAC Right1", NULL, SND_SOC_NOPM, 0, 0),
1181 	SND_SOC_DAPM_DAC("DAC Left1", NULL, SND_SOC_NOPM, 0, 0),
1182 	SND_SOC_DAPM_DAC("DAC Right2", NULL, SND_SOC_NOPM, 0, 0),
1183 	SND_SOC_DAPM_DAC("DAC Left2", NULL, SND_SOC_NOPM, 0, 0),
1184 	SND_SOC_DAPM_DAC("DAC Voice", NULL, SND_SOC_NOPM, 0, 0),
1185 
1186 	SND_SOC_DAPM_AIF_IN("VAIFIN", "Voice Playback", 0,
1187 			    TWL4030_REG_VOICE_IF, 6, 0),
1188 
1189 	/* Analog bypasses */
1190 	SND_SOC_DAPM_SWITCH("Right1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1191 			&twl4030_dapm_abypassr1_control),
1192 	SND_SOC_DAPM_SWITCH("Left1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1193 			&twl4030_dapm_abypassl1_control),
1194 	SND_SOC_DAPM_SWITCH("Right2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1195 			&twl4030_dapm_abypassr2_control),
1196 	SND_SOC_DAPM_SWITCH("Left2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1197 			&twl4030_dapm_abypassl2_control),
1198 	SND_SOC_DAPM_SWITCH("Voice Analog Loopback", SND_SOC_NOPM, 0, 0,
1199 			&twl4030_dapm_abypassv_control),
1200 
1201 	/* Master analog loopback switch */
1202 	SND_SOC_DAPM_SUPPLY("FM Loop Enable", TWL4030_REG_MISC_SET_1, 5, 0,
1203 			    NULL, 0),
1204 
1205 	/* Digital bypasses */
1206 	SND_SOC_DAPM_SWITCH("Left Digital Loopback", SND_SOC_NOPM, 0, 0,
1207 			&twl4030_dapm_dbypassl_control),
1208 	SND_SOC_DAPM_SWITCH("Right Digital Loopback", SND_SOC_NOPM, 0, 0,
1209 			&twl4030_dapm_dbypassr_control),
1210 	SND_SOC_DAPM_SWITCH("Voice Digital Loopback", SND_SOC_NOPM, 0, 0,
1211 			&twl4030_dapm_dbypassv_control),
1212 
1213 	/* Digital mixers, power control for the physical DACs */
1214 	SND_SOC_DAPM_MIXER("Digital R1 Playback Mixer",
1215 			TWL4030_REG_AVDAC_CTL, 0, 0, NULL, 0),
1216 	SND_SOC_DAPM_MIXER("Digital L1 Playback Mixer",
1217 			TWL4030_REG_AVDAC_CTL, 1, 0, NULL, 0),
1218 	SND_SOC_DAPM_MIXER("Digital R2 Playback Mixer",
1219 			TWL4030_REG_AVDAC_CTL, 2, 0, NULL, 0),
1220 	SND_SOC_DAPM_MIXER("Digital L2 Playback Mixer",
1221 			TWL4030_REG_AVDAC_CTL, 3, 0, NULL, 0),
1222 	SND_SOC_DAPM_MIXER("Digital Voice Playback Mixer",
1223 			TWL4030_REG_AVDAC_CTL, 4, 0, NULL, 0),
1224 
1225 	/* Analog mixers, power control for the physical PGAs */
1226 	SND_SOC_DAPM_MIXER("Analog R1 Playback Mixer",
1227 			TWL4030_REG_ARXR1_APGA_CTL, 0, 0, NULL, 0),
1228 	SND_SOC_DAPM_MIXER("Analog L1 Playback Mixer",
1229 			TWL4030_REG_ARXL1_APGA_CTL, 0, 0, NULL, 0),
1230 	SND_SOC_DAPM_MIXER("Analog R2 Playback Mixer",
1231 			TWL4030_REG_ARXR2_APGA_CTL, 0, 0, NULL, 0),
1232 	SND_SOC_DAPM_MIXER("Analog L2 Playback Mixer",
1233 			TWL4030_REG_ARXL2_APGA_CTL, 0, 0, NULL, 0),
1234 	SND_SOC_DAPM_MIXER("Analog Voice Playback Mixer",
1235 			TWL4030_REG_VDL_APGA_CTL, 0, 0, NULL, 0),
1236 
1237 	SND_SOC_DAPM_SUPPLY("APLL Enable", SND_SOC_NOPM, 0, 0, apll_event,
1238 			    SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1239 
1240 	SND_SOC_DAPM_SUPPLY("AIF Enable", SND_SOC_NOPM, 0, 0, aif_event,
1241 			    SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1242 
1243 	/* Output MIXER controls */
1244 	/* Earpiece */
1245 	SND_SOC_DAPM_MIXER("Earpiece Mixer", SND_SOC_NOPM, 0, 0,
1246 			&twl4030_dapm_earpiece_controls[0],
1247 			ARRAY_SIZE(twl4030_dapm_earpiece_controls)),
1248 	SND_SOC_DAPM_PGA_E("Earpiece PGA", SND_SOC_NOPM,
1249 			0, 0, NULL, 0, earpiecepga_event,
1250 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1251 	/* PreDrivL/R */
1252 	SND_SOC_DAPM_MIXER("PredriveL Mixer", SND_SOC_NOPM, 0, 0,
1253 			&twl4030_dapm_predrivel_controls[0],
1254 			ARRAY_SIZE(twl4030_dapm_predrivel_controls)),
1255 	SND_SOC_DAPM_PGA_E("PredriveL PGA", SND_SOC_NOPM,
1256 			0, 0, NULL, 0, predrivelpga_event,
1257 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1258 	SND_SOC_DAPM_MIXER("PredriveR Mixer", SND_SOC_NOPM, 0, 0,
1259 			&twl4030_dapm_predriver_controls[0],
1260 			ARRAY_SIZE(twl4030_dapm_predriver_controls)),
1261 	SND_SOC_DAPM_PGA_E("PredriveR PGA", SND_SOC_NOPM,
1262 			0, 0, NULL, 0, predriverpga_event,
1263 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1264 	/* HeadsetL/R */
1265 	SND_SOC_DAPM_MIXER("HeadsetL Mixer", SND_SOC_NOPM, 0, 0,
1266 			&twl4030_dapm_hsol_controls[0],
1267 			ARRAY_SIZE(twl4030_dapm_hsol_controls)),
1268 	SND_SOC_DAPM_PGA_E("HeadsetL PGA", SND_SOC_NOPM,
1269 			0, 0, NULL, 0, headsetlpga_event,
1270 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1271 	SND_SOC_DAPM_MIXER("HeadsetR Mixer", SND_SOC_NOPM, 0, 0,
1272 			&twl4030_dapm_hsor_controls[0],
1273 			ARRAY_SIZE(twl4030_dapm_hsor_controls)),
1274 	SND_SOC_DAPM_PGA_E("HeadsetR PGA", SND_SOC_NOPM,
1275 			0, 0, NULL, 0, headsetrpga_event,
1276 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1277 	/* CarkitL/R */
1278 	SND_SOC_DAPM_MIXER("CarkitL Mixer", SND_SOC_NOPM, 0, 0,
1279 			&twl4030_dapm_carkitl_controls[0],
1280 			ARRAY_SIZE(twl4030_dapm_carkitl_controls)),
1281 	SND_SOC_DAPM_PGA_E("CarkitL PGA", SND_SOC_NOPM,
1282 			0, 0, NULL, 0, carkitlpga_event,
1283 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1284 	SND_SOC_DAPM_MIXER("CarkitR Mixer", SND_SOC_NOPM, 0, 0,
1285 			&twl4030_dapm_carkitr_controls[0],
1286 			ARRAY_SIZE(twl4030_dapm_carkitr_controls)),
1287 	SND_SOC_DAPM_PGA_E("CarkitR PGA", SND_SOC_NOPM,
1288 			0, 0, NULL, 0, carkitrpga_event,
1289 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1290 
1291 	/* Output MUX controls */
1292 	/* HandsfreeL/R */
1293 	SND_SOC_DAPM_MUX("HandsfreeL Mux", SND_SOC_NOPM, 0, 0,
1294 		&twl4030_dapm_handsfreel_control),
1295 	SND_SOC_DAPM_SWITCH("HandsfreeL", SND_SOC_NOPM, 0, 0,
1296 			&twl4030_dapm_handsfreelmute_control),
1297 	SND_SOC_DAPM_PGA_E("HandsfreeL PGA", SND_SOC_NOPM,
1298 			0, 0, NULL, 0, handsfreelpga_event,
1299 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1300 	SND_SOC_DAPM_MUX("HandsfreeR Mux", SND_SOC_NOPM, 5, 0,
1301 		&twl4030_dapm_handsfreer_control),
1302 	SND_SOC_DAPM_SWITCH("HandsfreeR", SND_SOC_NOPM, 0, 0,
1303 			&twl4030_dapm_handsfreermute_control),
1304 	SND_SOC_DAPM_PGA_E("HandsfreeR PGA", SND_SOC_NOPM,
1305 			0, 0, NULL, 0, handsfreerpga_event,
1306 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1307 	/* Vibra */
1308 	SND_SOC_DAPM_MUX_E("Vibra Mux", TWL4030_REG_VIBRA_CTL, 0, 0,
1309 			   &twl4030_dapm_vibra_control, vibramux_event,
1310 			   SND_SOC_DAPM_PRE_PMU),
1311 	SND_SOC_DAPM_MUX("Vibra Route", SND_SOC_NOPM, 0, 0,
1312 		&twl4030_dapm_vibrapath_control),
1313 
1314 	/* Introducing four virtual ADC, since TWL4030 have four channel for
1315 	   capture */
1316 	SND_SOC_DAPM_ADC("ADC Virtual Left1", NULL, SND_SOC_NOPM, 0, 0),
1317 	SND_SOC_DAPM_ADC("ADC Virtual Right1", NULL, SND_SOC_NOPM, 0, 0),
1318 	SND_SOC_DAPM_ADC("ADC Virtual Left2", NULL, SND_SOC_NOPM, 0, 0),
1319 	SND_SOC_DAPM_ADC("ADC Virtual Right2", NULL, SND_SOC_NOPM, 0, 0),
1320 
1321 	SND_SOC_DAPM_AIF_OUT("VAIFOUT", "Voice Capture", 0,
1322 			     TWL4030_REG_VOICE_IF, 5, 0),
1323 
1324 	/* Analog/Digital mic path selection.
1325 	   TX1 Left/Right: either analog Left/Right or Digimic0
1326 	   TX2 Left/Right: either analog Left/Right or Digimic1 */
1327 	SND_SOC_DAPM_MUX("TX1 Capture Route", SND_SOC_NOPM, 0, 0,
1328 		&twl4030_dapm_micpathtx1_control),
1329 	SND_SOC_DAPM_MUX("TX2 Capture Route", SND_SOC_NOPM, 0, 0,
1330 		&twl4030_dapm_micpathtx2_control),
1331 
1332 	/* Analog input mixers for the capture amplifiers */
1333 	SND_SOC_DAPM_MIXER("Analog Left",
1334 		TWL4030_REG_ANAMICL, 4, 0,
1335 		&twl4030_dapm_analoglmic_controls[0],
1336 		ARRAY_SIZE(twl4030_dapm_analoglmic_controls)),
1337 	SND_SOC_DAPM_MIXER("Analog Right",
1338 		TWL4030_REG_ANAMICR, 4, 0,
1339 		&twl4030_dapm_analogrmic_controls[0],
1340 		ARRAY_SIZE(twl4030_dapm_analogrmic_controls)),
1341 
1342 	SND_SOC_DAPM_PGA("ADC Physical Left",
1343 		TWL4030_REG_AVADC_CTL, 3, 0, NULL, 0),
1344 	SND_SOC_DAPM_PGA("ADC Physical Right",
1345 		TWL4030_REG_AVADC_CTL, 1, 0, NULL, 0),
1346 
1347 	SND_SOC_DAPM_PGA_E("Digimic0 Enable",
1348 		TWL4030_REG_ADCMICSEL, 1, 0, NULL, 0,
1349 		digimic_event, SND_SOC_DAPM_POST_PMU),
1350 	SND_SOC_DAPM_PGA_E("Digimic1 Enable",
1351 		TWL4030_REG_ADCMICSEL, 3, 0, NULL, 0,
1352 		digimic_event, SND_SOC_DAPM_POST_PMU),
1353 
1354 	SND_SOC_DAPM_SUPPLY("micbias1 select", TWL4030_REG_MICBIAS_CTL, 5, 0,
1355 			    NULL, 0),
1356 	SND_SOC_DAPM_SUPPLY("micbias2 select", TWL4030_REG_MICBIAS_CTL, 6, 0,
1357 			    NULL, 0),
1358 
1359 	/* Microphone bias */
1360 	SND_SOC_DAPM_SUPPLY("Mic Bias 1",
1361 			    TWL4030_REG_MICBIAS_CTL, 0, 0, NULL, 0),
1362 	SND_SOC_DAPM_SUPPLY("Mic Bias 2",
1363 			    TWL4030_REG_MICBIAS_CTL, 1, 0, NULL, 0),
1364 	SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
1365 			    TWL4030_REG_MICBIAS_CTL, 2, 0, NULL, 0),
1366 
1367 	SND_SOC_DAPM_SUPPLY("VIF Enable", TWL4030_REG_VOICE_IF, 0, 0, NULL, 0),
1368 };
1369 
1370 static const struct snd_soc_dapm_route intercon[] = {
1371 	/* Stream -> DAC mapping */
1372 	{"DAC Right1", NULL, "HiFi Playback"},
1373 	{"DAC Left1", NULL, "HiFi Playback"},
1374 	{"DAC Right2", NULL, "HiFi Playback"},
1375 	{"DAC Left2", NULL, "HiFi Playback"},
1376 	{"DAC Voice", NULL, "VAIFIN"},
1377 
1378 	/* ADC -> Stream mapping */
1379 	{"HiFi Capture", NULL, "ADC Virtual Left1"},
1380 	{"HiFi Capture", NULL, "ADC Virtual Right1"},
1381 	{"HiFi Capture", NULL, "ADC Virtual Left2"},
1382 	{"HiFi Capture", NULL, "ADC Virtual Right2"},
1383 	{"VAIFOUT", NULL, "ADC Virtual Left2"},
1384 	{"VAIFOUT", NULL, "ADC Virtual Right2"},
1385 	{"VAIFOUT", NULL, "VIF Enable"},
1386 
1387 	{"Digital L1 Playback Mixer", NULL, "DAC Left1"},
1388 	{"Digital R1 Playback Mixer", NULL, "DAC Right1"},
1389 	{"Digital L2 Playback Mixer", NULL, "DAC Left2"},
1390 	{"Digital R2 Playback Mixer", NULL, "DAC Right2"},
1391 	{"Digital Voice Playback Mixer", NULL, "DAC Voice"},
1392 
1393 	/* Supply for the digital part (APLL) */
1394 	{"Digital Voice Playback Mixer", NULL, "APLL Enable"},
1395 
1396 	{"DAC Left1", NULL, "AIF Enable"},
1397 	{"DAC Right1", NULL, "AIF Enable"},
1398 	{"DAC Left2", NULL, "AIF Enable"},
1399 	{"DAC Right1", NULL, "AIF Enable"},
1400 	{"DAC Voice", NULL, "VIF Enable"},
1401 
1402 	{"Digital R2 Playback Mixer", NULL, "AIF Enable"},
1403 	{"Digital L2 Playback Mixer", NULL, "AIF Enable"},
1404 
1405 	{"Analog L1 Playback Mixer", NULL, "Digital L1 Playback Mixer"},
1406 	{"Analog R1 Playback Mixer", NULL, "Digital R1 Playback Mixer"},
1407 	{"Analog L2 Playback Mixer", NULL, "Digital L2 Playback Mixer"},
1408 	{"Analog R2 Playback Mixer", NULL, "Digital R2 Playback Mixer"},
1409 	{"Analog Voice Playback Mixer", NULL, "Digital Voice Playback Mixer"},
1410 
1411 	/* Internal playback routings */
1412 	/* Earpiece */
1413 	{"Earpiece Mixer", "Voice", "Analog Voice Playback Mixer"},
1414 	{"Earpiece Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1415 	{"Earpiece Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1416 	{"Earpiece Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1417 	{"Earpiece PGA", NULL, "Earpiece Mixer"},
1418 	/* PreDrivL */
1419 	{"PredriveL Mixer", "Voice", "Analog Voice Playback Mixer"},
1420 	{"PredriveL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1421 	{"PredriveL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1422 	{"PredriveL Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1423 	{"PredriveL PGA", NULL, "PredriveL Mixer"},
1424 	/* PreDrivR */
1425 	{"PredriveR Mixer", "Voice", "Analog Voice Playback Mixer"},
1426 	{"PredriveR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1427 	{"PredriveR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1428 	{"PredriveR Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1429 	{"PredriveR PGA", NULL, "PredriveR Mixer"},
1430 	/* HeadsetL */
1431 	{"HeadsetL Mixer", "Voice", "Analog Voice Playback Mixer"},
1432 	{"HeadsetL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1433 	{"HeadsetL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1434 	{"HeadsetL PGA", NULL, "HeadsetL Mixer"},
1435 	/* HeadsetR */
1436 	{"HeadsetR Mixer", "Voice", "Analog Voice Playback Mixer"},
1437 	{"HeadsetR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1438 	{"HeadsetR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1439 	{"HeadsetR PGA", NULL, "HeadsetR Mixer"},
1440 	/* CarkitL */
1441 	{"CarkitL Mixer", "Voice", "Analog Voice Playback Mixer"},
1442 	{"CarkitL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1443 	{"CarkitL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1444 	{"CarkitL PGA", NULL, "CarkitL Mixer"},
1445 	/* CarkitR */
1446 	{"CarkitR Mixer", "Voice", "Analog Voice Playback Mixer"},
1447 	{"CarkitR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1448 	{"CarkitR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1449 	{"CarkitR PGA", NULL, "CarkitR Mixer"},
1450 	/* HandsfreeL */
1451 	{"HandsfreeL Mux", "Voice", "Analog Voice Playback Mixer"},
1452 	{"HandsfreeL Mux", "AudioL1", "Analog L1 Playback Mixer"},
1453 	{"HandsfreeL Mux", "AudioL2", "Analog L2 Playback Mixer"},
1454 	{"HandsfreeL Mux", "AudioR2", "Analog R2 Playback Mixer"},
1455 	{"HandsfreeL", "Switch", "HandsfreeL Mux"},
1456 	{"HandsfreeL PGA", NULL, "HandsfreeL"},
1457 	/* HandsfreeR */
1458 	{"HandsfreeR Mux", "Voice", "Analog Voice Playback Mixer"},
1459 	{"HandsfreeR Mux", "AudioR1", "Analog R1 Playback Mixer"},
1460 	{"HandsfreeR Mux", "AudioR2", "Analog R2 Playback Mixer"},
1461 	{"HandsfreeR Mux", "AudioL2", "Analog L2 Playback Mixer"},
1462 	{"HandsfreeR", "Switch", "HandsfreeR Mux"},
1463 	{"HandsfreeR PGA", NULL, "HandsfreeR"},
1464 	/* Vibra */
1465 	{"Vibra Mux", "AudioL1", "DAC Left1"},
1466 	{"Vibra Mux", "AudioR1", "DAC Right1"},
1467 	{"Vibra Mux", "AudioL2", "DAC Left2"},
1468 	{"Vibra Mux", "AudioR2", "DAC Right2"},
1469 
1470 	/* outputs */
1471 	/* Must be always connected (for AIF and APLL) */
1472 	{"Virtual HiFi OUT", NULL, "DAC Left1"},
1473 	{"Virtual HiFi OUT", NULL, "DAC Right1"},
1474 	{"Virtual HiFi OUT", NULL, "DAC Left2"},
1475 	{"Virtual HiFi OUT", NULL, "DAC Right2"},
1476 	/* Must be always connected (for APLL) */
1477 	{"Virtual Voice OUT", NULL, "Digital Voice Playback Mixer"},
1478 	/* Physical outputs */
1479 	{"EARPIECE", NULL, "Earpiece PGA"},
1480 	{"PREDRIVEL", NULL, "PredriveL PGA"},
1481 	{"PREDRIVER", NULL, "PredriveR PGA"},
1482 	{"HSOL", NULL, "HeadsetL PGA"},
1483 	{"HSOR", NULL, "HeadsetR PGA"},
1484 	{"CARKITL", NULL, "CarkitL PGA"},
1485 	{"CARKITR", NULL, "CarkitR PGA"},
1486 	{"HFL", NULL, "HandsfreeL PGA"},
1487 	{"HFR", NULL, "HandsfreeR PGA"},
1488 	{"Vibra Route", "Audio", "Vibra Mux"},
1489 	{"VIBRA", NULL, "Vibra Route"},
1490 
1491 	/* Capture path */
1492 	/* Must be always connected (for AIF and APLL) */
1493 	{"ADC Virtual Left1", NULL, "Virtual HiFi IN"},
1494 	{"ADC Virtual Right1", NULL, "Virtual HiFi IN"},
1495 	{"ADC Virtual Left2", NULL, "Virtual HiFi IN"},
1496 	{"ADC Virtual Right2", NULL, "Virtual HiFi IN"},
1497 	/* Physical inputs */
1498 	{"Analog Left", "Main Mic Capture Switch", "MAINMIC"},
1499 	{"Analog Left", "Headset Mic Capture Switch", "HSMIC"},
1500 	{"Analog Left", "AUXL Capture Switch", "AUXL"},
1501 	{"Analog Left", "Carkit Mic Capture Switch", "CARKITMIC"},
1502 
1503 	{"Analog Right", "Sub Mic Capture Switch", "SUBMIC"},
1504 	{"Analog Right", "AUXR Capture Switch", "AUXR"},
1505 
1506 	{"ADC Physical Left", NULL, "Analog Left"},
1507 	{"ADC Physical Right", NULL, "Analog Right"},
1508 
1509 	{"Digimic0 Enable", NULL, "DIGIMIC0"},
1510 	{"Digimic1 Enable", NULL, "DIGIMIC1"},
1511 
1512 	{"DIGIMIC0", NULL, "micbias1 select"},
1513 	{"DIGIMIC1", NULL, "micbias2 select"},
1514 
1515 	/* TX1 Left capture path */
1516 	{"TX1 Capture Route", "Analog", "ADC Physical Left"},
1517 	{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1518 	/* TX1 Right capture path */
1519 	{"TX1 Capture Route", "Analog", "ADC Physical Right"},
1520 	{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1521 	/* TX2 Left capture path */
1522 	{"TX2 Capture Route", "Analog", "ADC Physical Left"},
1523 	{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1524 	/* TX2 Right capture path */
1525 	{"TX2 Capture Route", "Analog", "ADC Physical Right"},
1526 	{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1527 
1528 	{"ADC Virtual Left1", NULL, "TX1 Capture Route"},
1529 	{"ADC Virtual Right1", NULL, "TX1 Capture Route"},
1530 	{"ADC Virtual Left2", NULL, "TX2 Capture Route"},
1531 	{"ADC Virtual Right2", NULL, "TX2 Capture Route"},
1532 
1533 	{"ADC Virtual Left1", NULL, "AIF Enable"},
1534 	{"ADC Virtual Right1", NULL, "AIF Enable"},
1535 	{"ADC Virtual Left2", NULL, "AIF Enable"},
1536 	{"ADC Virtual Right2", NULL, "AIF Enable"},
1537 
1538 	/* Analog bypass routes */
1539 	{"Right1 Analog Loopback", "Switch", "Analog Right"},
1540 	{"Left1 Analog Loopback", "Switch", "Analog Left"},
1541 	{"Right2 Analog Loopback", "Switch", "Analog Right"},
1542 	{"Left2 Analog Loopback", "Switch", "Analog Left"},
1543 	{"Voice Analog Loopback", "Switch", "Analog Left"},
1544 
1545 	/* Supply for the Analog loopbacks */
1546 	{"Right1 Analog Loopback", NULL, "FM Loop Enable"},
1547 	{"Left1 Analog Loopback", NULL, "FM Loop Enable"},
1548 	{"Right2 Analog Loopback", NULL, "FM Loop Enable"},
1549 	{"Left2 Analog Loopback", NULL, "FM Loop Enable"},
1550 	{"Voice Analog Loopback", NULL, "FM Loop Enable"},
1551 
1552 	{"Analog R1 Playback Mixer", NULL, "Right1 Analog Loopback"},
1553 	{"Analog L1 Playback Mixer", NULL, "Left1 Analog Loopback"},
1554 	{"Analog R2 Playback Mixer", NULL, "Right2 Analog Loopback"},
1555 	{"Analog L2 Playback Mixer", NULL, "Left2 Analog Loopback"},
1556 	{"Analog Voice Playback Mixer", NULL, "Voice Analog Loopback"},
1557 
1558 	/* Digital bypass routes */
1559 	{"Right Digital Loopback", "Volume", "TX1 Capture Route"},
1560 	{"Left Digital Loopback", "Volume", "TX1 Capture Route"},
1561 	{"Voice Digital Loopback", "Volume", "TX2 Capture Route"},
1562 
1563 	{"Digital R2 Playback Mixer", NULL, "Right Digital Loopback"},
1564 	{"Digital L2 Playback Mixer", NULL, "Left Digital Loopback"},
1565 	{"Digital Voice Playback Mixer", NULL, "Voice Digital Loopback"},
1566 
1567 };
1568 
1569 static int twl4030_set_bias_level(struct snd_soc_codec *codec,
1570 				  enum snd_soc_bias_level level)
1571 {
1572 	switch (level) {
1573 	case SND_SOC_BIAS_ON:
1574 		break;
1575 	case SND_SOC_BIAS_PREPARE:
1576 		break;
1577 	case SND_SOC_BIAS_STANDBY:
1578 		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF)
1579 			twl4030_codec_enable(codec, 1);
1580 		break;
1581 	case SND_SOC_BIAS_OFF:
1582 		twl4030_codec_enable(codec, 0);
1583 		break;
1584 	}
1585 	codec->dapm.bias_level = level;
1586 
1587 	return 0;
1588 }
1589 
1590 static void twl4030_constraints(struct twl4030_priv *twl4030,
1591 				struct snd_pcm_substream *mst_substream)
1592 {
1593 	struct snd_pcm_substream *slv_substream;
1594 
1595 	/* Pick the stream, which need to be constrained */
1596 	if (mst_substream == twl4030->master_substream)
1597 		slv_substream = twl4030->slave_substream;
1598 	else if (mst_substream == twl4030->slave_substream)
1599 		slv_substream = twl4030->master_substream;
1600 	else /* This should not happen.. */
1601 		return;
1602 
1603 	/* Set the constraints according to the already configured stream */
1604 	snd_pcm_hw_constraint_minmax(slv_substream->runtime,
1605 				SNDRV_PCM_HW_PARAM_RATE,
1606 				twl4030->rate,
1607 				twl4030->rate);
1608 
1609 	snd_pcm_hw_constraint_minmax(slv_substream->runtime,
1610 				SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
1611 				twl4030->sample_bits,
1612 				twl4030->sample_bits);
1613 
1614 	snd_pcm_hw_constraint_minmax(slv_substream->runtime,
1615 				SNDRV_PCM_HW_PARAM_CHANNELS,
1616 				twl4030->channels,
1617 				twl4030->channels);
1618 }
1619 
1620 /* In case of 4 channel mode, the RX1 L/R for playback and the TX2 L/R for
1621  * capture has to be enabled/disabled. */
1622 static void twl4030_tdm_enable(struct snd_soc_codec *codec, int direction,
1623 			       int enable)
1624 {
1625 	u8 reg, mask;
1626 
1627 	reg = twl4030_read(codec, TWL4030_REG_OPTION);
1628 
1629 	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1630 		mask = TWL4030_ARXL1_VRX_EN | TWL4030_ARXR1_EN;
1631 	else
1632 		mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1633 
1634 	if (enable)
1635 		reg |= mask;
1636 	else
1637 		reg &= ~mask;
1638 
1639 	twl4030_write(codec, TWL4030_REG_OPTION, reg);
1640 }
1641 
1642 static int twl4030_startup(struct snd_pcm_substream *substream,
1643 			   struct snd_soc_dai *dai)
1644 {
1645 	struct snd_soc_codec *codec = dai->codec;
1646 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1647 
1648 	if (twl4030->master_substream) {
1649 		twl4030->slave_substream = substream;
1650 		/* The DAI has one configuration for playback and capture, so
1651 		 * if the DAI has been already configured then constrain this
1652 		 * substream to match it. */
1653 		if (twl4030->configured)
1654 			twl4030_constraints(twl4030, twl4030->master_substream);
1655 	} else {
1656 		if (!(twl4030_read(codec, TWL4030_REG_CODEC_MODE) &
1657 			TWL4030_OPTION_1)) {
1658 			/* In option2 4 channel is not supported, set the
1659 			 * constraint for the first stream for channels, the
1660 			 * second stream will 'inherit' this cosntraint */
1661 			snd_pcm_hw_constraint_minmax(substream->runtime,
1662 						     SNDRV_PCM_HW_PARAM_CHANNELS,
1663 						     2, 2);
1664 		}
1665 		twl4030->master_substream = substream;
1666 	}
1667 
1668 	return 0;
1669 }
1670 
1671 static void twl4030_shutdown(struct snd_pcm_substream *substream,
1672 			     struct snd_soc_dai *dai)
1673 {
1674 	struct snd_soc_codec *codec = dai->codec;
1675 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1676 
1677 	if (twl4030->master_substream == substream)
1678 		twl4030->master_substream = twl4030->slave_substream;
1679 
1680 	twl4030->slave_substream = NULL;
1681 
1682 	/* If all streams are closed, or the remaining stream has not yet
1683 	 * been configured than set the DAI as not configured. */
1684 	if (!twl4030->master_substream)
1685 		twl4030->configured = 0;
1686 	 else if (!twl4030->master_substream->runtime->channels)
1687 		twl4030->configured = 0;
1688 
1689 	 /* If the closing substream had 4 channel, do the necessary cleanup */
1690 	if (substream->runtime->channels == 4)
1691 		twl4030_tdm_enable(codec, substream->stream, 0);
1692 }
1693 
1694 static int twl4030_hw_params(struct snd_pcm_substream *substream,
1695 			     struct snd_pcm_hw_params *params,
1696 			     struct snd_soc_dai *dai)
1697 {
1698 	struct snd_soc_codec *codec = dai->codec;
1699 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1700 	u8 mode, old_mode, format, old_format;
1701 
1702 	 /* If the substream has 4 channel, do the necessary setup */
1703 	if (params_channels(params) == 4) {
1704 		format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1705 		mode = twl4030_read(codec, TWL4030_REG_CODEC_MODE);
1706 
1707 		/* Safety check: are we in the correct operating mode and
1708 		 * the interface is in TDM mode? */
1709 		if ((mode & TWL4030_OPTION_1) &&
1710 		    ((format & TWL4030_AIF_FORMAT) == TWL4030_AIF_FORMAT_TDM))
1711 			twl4030_tdm_enable(codec, substream->stream, 1);
1712 		else
1713 			return -EINVAL;
1714 	}
1715 
1716 	if (twl4030->configured)
1717 		/* Ignoring hw_params for already configured DAI */
1718 		return 0;
1719 
1720 	/* bit rate */
1721 	old_mode = twl4030_read(codec,
1722 				TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1723 	mode = old_mode & ~TWL4030_APLL_RATE;
1724 
1725 	switch (params_rate(params)) {
1726 	case 8000:
1727 		mode |= TWL4030_APLL_RATE_8000;
1728 		break;
1729 	case 11025:
1730 		mode |= TWL4030_APLL_RATE_11025;
1731 		break;
1732 	case 12000:
1733 		mode |= TWL4030_APLL_RATE_12000;
1734 		break;
1735 	case 16000:
1736 		mode |= TWL4030_APLL_RATE_16000;
1737 		break;
1738 	case 22050:
1739 		mode |= TWL4030_APLL_RATE_22050;
1740 		break;
1741 	case 24000:
1742 		mode |= TWL4030_APLL_RATE_24000;
1743 		break;
1744 	case 32000:
1745 		mode |= TWL4030_APLL_RATE_32000;
1746 		break;
1747 	case 44100:
1748 		mode |= TWL4030_APLL_RATE_44100;
1749 		break;
1750 	case 48000:
1751 		mode |= TWL4030_APLL_RATE_48000;
1752 		break;
1753 	case 96000:
1754 		mode |= TWL4030_APLL_RATE_96000;
1755 		break;
1756 	default:
1757 		dev_err(codec->dev, "%s: unknown rate %d\n", __func__,
1758 			params_rate(params));
1759 		return -EINVAL;
1760 	}
1761 
1762 	/* sample size */
1763 	old_format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1764 	format = old_format;
1765 	format &= ~TWL4030_DATA_WIDTH;
1766 	switch (params_width(params)) {
1767 	case 16:
1768 		format |= TWL4030_DATA_WIDTH_16S_16W;
1769 		break;
1770 	case 32:
1771 		format |= TWL4030_DATA_WIDTH_32S_24W;
1772 		break;
1773 	default:
1774 		dev_err(codec->dev, "%s: unsupported bits/sample %d\n",
1775 			__func__, params_width(params));
1776 		return -EINVAL;
1777 	}
1778 
1779 	if (format != old_format || mode != old_mode) {
1780 		if (twl4030->codec_powered) {
1781 			/*
1782 			 * If the codec is powered, than we need to toggle the
1783 			 * codec power.
1784 			 */
1785 			twl4030_codec_enable(codec, 0);
1786 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
1787 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1788 			twl4030_codec_enable(codec, 1);
1789 		} else {
1790 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
1791 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1792 		}
1793 	}
1794 
1795 	/* Store the important parameters for the DAI configuration and set
1796 	 * the DAI as configured */
1797 	twl4030->configured = 1;
1798 	twl4030->rate = params_rate(params);
1799 	twl4030->sample_bits = hw_param_interval(params,
1800 					SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;
1801 	twl4030->channels = params_channels(params);
1802 
1803 	/* If both playback and capture streams are open, and one of them
1804 	 * is setting the hw parameters right now (since we are here), set
1805 	 * constraints to the other stream to match the current one. */
1806 	if (twl4030->slave_substream)
1807 		twl4030_constraints(twl4030, substream);
1808 
1809 	return 0;
1810 }
1811 
1812 static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id,
1813 				  unsigned int freq, int dir)
1814 {
1815 	struct snd_soc_codec *codec = codec_dai->codec;
1816 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1817 
1818 	switch (freq) {
1819 	case 19200000:
1820 	case 26000000:
1821 	case 38400000:
1822 		break;
1823 	default:
1824 		dev_err(codec->dev, "Unsupported HFCLKIN: %u\n", freq);
1825 		return -EINVAL;
1826 	}
1827 
1828 	if ((freq / 1000) != twl4030->sysclk) {
1829 		dev_err(codec->dev,
1830 			"Mismatch in HFCLKIN: %u (configured: %u)\n",
1831 			freq, twl4030->sysclk * 1000);
1832 		return -EINVAL;
1833 	}
1834 
1835 	return 0;
1836 }
1837 
1838 static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
1839 {
1840 	struct snd_soc_codec *codec = codec_dai->codec;
1841 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1842 	u8 old_format, format;
1843 
1844 	/* get format */
1845 	old_format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1846 	format = old_format;
1847 
1848 	/* set master/slave audio interface */
1849 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1850 	case SND_SOC_DAIFMT_CBM_CFM:
1851 		format &= ~(TWL4030_AIF_SLAVE_EN);
1852 		format &= ~(TWL4030_CLK256FS_EN);
1853 		break;
1854 	case SND_SOC_DAIFMT_CBS_CFS:
1855 		format |= TWL4030_AIF_SLAVE_EN;
1856 		format |= TWL4030_CLK256FS_EN;
1857 		break;
1858 	default:
1859 		return -EINVAL;
1860 	}
1861 
1862 	/* interface format */
1863 	format &= ~TWL4030_AIF_FORMAT;
1864 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1865 	case SND_SOC_DAIFMT_I2S:
1866 		format |= TWL4030_AIF_FORMAT_CODEC;
1867 		break;
1868 	case SND_SOC_DAIFMT_DSP_A:
1869 		format |= TWL4030_AIF_FORMAT_TDM;
1870 		break;
1871 	default:
1872 		return -EINVAL;
1873 	}
1874 
1875 	if (format != old_format) {
1876 		if (twl4030->codec_powered) {
1877 			/*
1878 			 * If the codec is powered, than we need to toggle the
1879 			 * codec power.
1880 			 */
1881 			twl4030_codec_enable(codec, 0);
1882 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1883 			twl4030_codec_enable(codec, 1);
1884 		} else {
1885 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1886 		}
1887 	}
1888 
1889 	return 0;
1890 }
1891 
1892 static int twl4030_set_tristate(struct snd_soc_dai *dai, int tristate)
1893 {
1894 	struct snd_soc_codec *codec = dai->codec;
1895 	u8 reg = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1896 
1897 	if (tristate)
1898 		reg |= TWL4030_AIF_TRI_EN;
1899 	else
1900 		reg &= ~TWL4030_AIF_TRI_EN;
1901 
1902 	return twl4030_write(codec, TWL4030_REG_AUDIO_IF, reg);
1903 }
1904 
1905 /* In case of voice mode, the RX1 L(VRX) for downlink and the TX2 L/R
1906  * (VTXL, VTXR) for uplink has to be enabled/disabled. */
1907 static void twl4030_voice_enable(struct snd_soc_codec *codec, int direction,
1908 				 int enable)
1909 {
1910 	u8 reg, mask;
1911 
1912 	reg = twl4030_read(codec, TWL4030_REG_OPTION);
1913 
1914 	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1915 		mask = TWL4030_ARXL1_VRX_EN;
1916 	else
1917 		mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1918 
1919 	if (enable)
1920 		reg |= mask;
1921 	else
1922 		reg &= ~mask;
1923 
1924 	twl4030_write(codec, TWL4030_REG_OPTION, reg);
1925 }
1926 
1927 static int twl4030_voice_startup(struct snd_pcm_substream *substream,
1928 				 struct snd_soc_dai *dai)
1929 {
1930 	struct snd_soc_codec *codec = dai->codec;
1931 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1932 	u8 mode;
1933 
1934 	/* If the system master clock is not 26MHz, the voice PCM interface is
1935 	 * not available.
1936 	 */
1937 	if (twl4030->sysclk != 26000) {
1938 		dev_err(codec->dev,
1939 			"%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n",
1940 			__func__, twl4030->sysclk);
1941 		return -EINVAL;
1942 	}
1943 
1944 	/* If the codec mode is not option2, the voice PCM interface is not
1945 	 * available.
1946 	 */
1947 	mode = twl4030_read(codec, TWL4030_REG_CODEC_MODE)
1948 		& TWL4030_OPT_MODE;
1949 
1950 	if (mode != TWL4030_OPTION_2) {
1951 		dev_err(codec->dev, "%s: the codec mode is not option2\n",
1952 			__func__);
1953 		return -EINVAL;
1954 	}
1955 
1956 	return 0;
1957 }
1958 
1959 static void twl4030_voice_shutdown(struct snd_pcm_substream *substream,
1960 				   struct snd_soc_dai *dai)
1961 {
1962 	struct snd_soc_codec *codec = dai->codec;
1963 
1964 	/* Enable voice digital filters */
1965 	twl4030_voice_enable(codec, substream->stream, 0);
1966 }
1967 
1968 static int twl4030_voice_hw_params(struct snd_pcm_substream *substream,
1969 				   struct snd_pcm_hw_params *params,
1970 				   struct snd_soc_dai *dai)
1971 {
1972 	struct snd_soc_codec *codec = dai->codec;
1973 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1974 	u8 old_mode, mode;
1975 
1976 	/* Enable voice digital filters */
1977 	twl4030_voice_enable(codec, substream->stream, 1);
1978 
1979 	/* bit rate */
1980 	old_mode = twl4030_read(codec,
1981 				TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1982 	mode = old_mode;
1983 
1984 	switch (params_rate(params)) {
1985 	case 8000:
1986 		mode &= ~(TWL4030_SEL_16K);
1987 		break;
1988 	case 16000:
1989 		mode |= TWL4030_SEL_16K;
1990 		break;
1991 	default:
1992 		dev_err(codec->dev, "%s: unknown rate %d\n", __func__,
1993 			params_rate(params));
1994 		return -EINVAL;
1995 	}
1996 
1997 	if (mode != old_mode) {
1998 		if (twl4030->codec_powered) {
1999 			/*
2000 			 * If the codec is powered, than we need to toggle the
2001 			 * codec power.
2002 			 */
2003 			twl4030_codec_enable(codec, 0);
2004 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
2005 			twl4030_codec_enable(codec, 1);
2006 		} else {
2007 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
2008 		}
2009 	}
2010 
2011 	return 0;
2012 }
2013 
2014 static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
2015 					int clk_id, unsigned int freq, int dir)
2016 {
2017 	struct snd_soc_codec *codec = codec_dai->codec;
2018 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
2019 
2020 	if (freq != 26000000) {
2021 		dev_err(codec->dev,
2022 			"%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n",
2023 			__func__, freq / 1000);
2024 		return -EINVAL;
2025 	}
2026 	if ((freq / 1000) != twl4030->sysclk) {
2027 		dev_err(codec->dev,
2028 			"Mismatch in HFCLKIN: %u (configured: %u)\n",
2029 			freq, twl4030->sysclk * 1000);
2030 		return -EINVAL;
2031 	}
2032 	return 0;
2033 }
2034 
2035 static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
2036 				     unsigned int fmt)
2037 {
2038 	struct snd_soc_codec *codec = codec_dai->codec;
2039 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
2040 	u8 old_format, format;
2041 
2042 	/* get format */
2043 	old_format = twl4030_read(codec, TWL4030_REG_VOICE_IF);
2044 	format = old_format;
2045 
2046 	/* set master/slave audio interface */
2047 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
2048 	case SND_SOC_DAIFMT_CBM_CFM:
2049 		format &= ~(TWL4030_VIF_SLAVE_EN);
2050 		break;
2051 	case SND_SOC_DAIFMT_CBS_CFS:
2052 		format |= TWL4030_VIF_SLAVE_EN;
2053 		break;
2054 	default:
2055 		return -EINVAL;
2056 	}
2057 
2058 	/* clock inversion */
2059 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
2060 	case SND_SOC_DAIFMT_IB_NF:
2061 		format &= ~(TWL4030_VIF_FORMAT);
2062 		break;
2063 	case SND_SOC_DAIFMT_NB_IF:
2064 		format |= TWL4030_VIF_FORMAT;
2065 		break;
2066 	default:
2067 		return -EINVAL;
2068 	}
2069 
2070 	if (format != old_format) {
2071 		if (twl4030->codec_powered) {
2072 			/*
2073 			 * If the codec is powered, than we need to toggle the
2074 			 * codec power.
2075 			 */
2076 			twl4030_codec_enable(codec, 0);
2077 			twl4030_write(codec, TWL4030_REG_VOICE_IF, format);
2078 			twl4030_codec_enable(codec, 1);
2079 		} else {
2080 			twl4030_write(codec, TWL4030_REG_VOICE_IF, format);
2081 		}
2082 	}
2083 
2084 	return 0;
2085 }
2086 
2087 static int twl4030_voice_set_tristate(struct snd_soc_dai *dai, int tristate)
2088 {
2089 	struct snd_soc_codec *codec = dai->codec;
2090 	u8 reg = twl4030_read(codec, TWL4030_REG_VOICE_IF);
2091 
2092 	if (tristate)
2093 		reg |= TWL4030_VIF_TRI_EN;
2094 	else
2095 		reg &= ~TWL4030_VIF_TRI_EN;
2096 
2097 	return twl4030_write(codec, TWL4030_REG_VOICE_IF, reg);
2098 }
2099 
2100 #define TWL4030_RATES	 (SNDRV_PCM_RATE_8000_48000)
2101 #define TWL4030_FORMATS	 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2102 
2103 static const struct snd_soc_dai_ops twl4030_dai_hifi_ops = {
2104 	.startup	= twl4030_startup,
2105 	.shutdown	= twl4030_shutdown,
2106 	.hw_params	= twl4030_hw_params,
2107 	.set_sysclk	= twl4030_set_dai_sysclk,
2108 	.set_fmt	= twl4030_set_dai_fmt,
2109 	.set_tristate	= twl4030_set_tristate,
2110 };
2111 
2112 static const struct snd_soc_dai_ops twl4030_dai_voice_ops = {
2113 	.startup	= twl4030_voice_startup,
2114 	.shutdown	= twl4030_voice_shutdown,
2115 	.hw_params	= twl4030_voice_hw_params,
2116 	.set_sysclk	= twl4030_voice_set_dai_sysclk,
2117 	.set_fmt	= twl4030_voice_set_dai_fmt,
2118 	.set_tristate	= twl4030_voice_set_tristate,
2119 };
2120 
2121 static struct snd_soc_dai_driver twl4030_dai[] = {
2122 {
2123 	.name = "twl4030-hifi",
2124 	.playback = {
2125 		.stream_name = "HiFi Playback",
2126 		.channels_min = 2,
2127 		.channels_max = 4,
2128 		.rates = TWL4030_RATES | SNDRV_PCM_RATE_96000,
2129 		.formats = TWL4030_FORMATS,
2130 		.sig_bits = 24,},
2131 	.capture = {
2132 		.stream_name = "HiFi Capture",
2133 		.channels_min = 2,
2134 		.channels_max = 4,
2135 		.rates = TWL4030_RATES,
2136 		.formats = TWL4030_FORMATS,
2137 		.sig_bits = 24,},
2138 	.ops = &twl4030_dai_hifi_ops,
2139 },
2140 {
2141 	.name = "twl4030-voice",
2142 	.playback = {
2143 		.stream_name = "Voice Playback",
2144 		.channels_min = 1,
2145 		.channels_max = 1,
2146 		.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2147 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
2148 	.capture = {
2149 		.stream_name = "Voice Capture",
2150 		.channels_min = 1,
2151 		.channels_max = 2,
2152 		.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2153 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
2154 	.ops = &twl4030_dai_voice_ops,
2155 },
2156 };
2157 
2158 static int twl4030_soc_probe(struct snd_soc_codec *codec)
2159 {
2160 	struct twl4030_priv *twl4030;
2161 
2162 	twl4030 = devm_kzalloc(codec->dev, sizeof(struct twl4030_priv),
2163 			       GFP_KERNEL);
2164 	if (!twl4030)
2165 		return -ENOMEM;
2166 	snd_soc_codec_set_drvdata(codec, twl4030);
2167 	/* Set the defaults, and power up the codec */
2168 	twl4030->sysclk = twl4030_audio_get_mclk() / 1000;
2169 
2170 	twl4030_init_chip(codec);
2171 
2172 	return 0;
2173 }
2174 
2175 static int twl4030_soc_remove(struct snd_soc_codec *codec)
2176 {
2177 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
2178 	struct twl4030_codec_data *pdata = twl4030->pdata;
2179 
2180 	twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF);
2181 
2182 	if (pdata && pdata->hs_extmute && gpio_is_valid(pdata->hs_extmute_gpio))
2183 		gpio_free(pdata->hs_extmute_gpio);
2184 
2185 	return 0;
2186 }
2187 
2188 static struct snd_soc_codec_driver soc_codec_dev_twl4030 = {
2189 	.probe = twl4030_soc_probe,
2190 	.remove = twl4030_soc_remove,
2191 	.read = twl4030_read,
2192 	.write = twl4030_write,
2193 	.set_bias_level = twl4030_set_bias_level,
2194 	.idle_bias_off = true,
2195 
2196 	.controls = twl4030_snd_controls,
2197 	.num_controls = ARRAY_SIZE(twl4030_snd_controls),
2198 	.dapm_widgets = twl4030_dapm_widgets,
2199 	.num_dapm_widgets = ARRAY_SIZE(twl4030_dapm_widgets),
2200 	.dapm_routes = intercon,
2201 	.num_dapm_routes = ARRAY_SIZE(intercon),
2202 };
2203 
2204 static int twl4030_codec_probe(struct platform_device *pdev)
2205 {
2206 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl4030,
2207 				      twl4030_dai, ARRAY_SIZE(twl4030_dai));
2208 }
2209 
2210 static int twl4030_codec_remove(struct platform_device *pdev)
2211 {
2212 	snd_soc_unregister_codec(&pdev->dev);
2213 	return 0;
2214 }
2215 
2216 MODULE_ALIAS("platform:twl4030-codec");
2217 
2218 static struct platform_driver twl4030_codec_driver = {
2219 	.probe		= twl4030_codec_probe,
2220 	.remove		= twl4030_codec_remove,
2221 	.driver		= {
2222 		.name	= "twl4030-codec",
2223 		.owner	= THIS_MODULE,
2224 	},
2225 };
2226 
2227 module_platform_driver(twl4030_codec_driver);
2228 
2229 MODULE_DESCRIPTION("ASoC TWL4030 codec driver");
2230 MODULE_AUTHOR("Steve Sakoman");
2231 MODULE_LICENSE("GPL");
2232