xref: /openbmc/linux/sound/soc/codecs/twl4030.c (revision 92a2c6b2)
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 snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);	\
571 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec); \
572 									\
573 	switch (event) {						\
574 	case SND_SOC_DAPM_POST_PMU:					\
575 		twl4030->pin_name##_enabled = 1;			\
576 		twl4030_write(codec, reg, twl4030_read(codec, reg));	\
577 		break;							\
578 	case SND_SOC_DAPM_POST_PMD:					\
579 		twl4030->pin_name##_enabled = 0;			\
580 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, 0, reg);	\
581 		break;							\
582 	}								\
583 	return 0;							\
584 }
585 
586 TWL4030_OUTPUT_PGA(earpiece, TWL4030_REG_EAR_CTL, TWL4030_EAR_GAIN);
587 TWL4030_OUTPUT_PGA(predrivel, TWL4030_REG_PREDL_CTL, TWL4030_PREDL_GAIN);
588 TWL4030_OUTPUT_PGA(predriver, TWL4030_REG_PREDR_CTL, TWL4030_PREDR_GAIN);
589 TWL4030_OUTPUT_PGA(carkitl, TWL4030_REG_PRECKL_CTL, TWL4030_PRECKL_GAIN);
590 TWL4030_OUTPUT_PGA(carkitr, TWL4030_REG_PRECKR_CTL, TWL4030_PRECKR_GAIN);
591 
592 static void handsfree_ramp(struct snd_soc_codec *codec, int reg, int ramp)
593 {
594 	unsigned char hs_ctl;
595 
596 	hs_ctl = twl4030_read(codec, reg);
597 
598 	if (ramp) {
599 		/* HF ramp-up */
600 		hs_ctl |= TWL4030_HF_CTL_REF_EN;
601 		twl4030_write(codec, reg, hs_ctl);
602 		udelay(10);
603 		hs_ctl |= TWL4030_HF_CTL_RAMP_EN;
604 		twl4030_write(codec, reg, hs_ctl);
605 		udelay(40);
606 		hs_ctl |= TWL4030_HF_CTL_LOOP_EN;
607 		hs_ctl |= TWL4030_HF_CTL_HB_EN;
608 		twl4030_write(codec, reg, hs_ctl);
609 	} else {
610 		/* HF ramp-down */
611 		hs_ctl &= ~TWL4030_HF_CTL_LOOP_EN;
612 		hs_ctl &= ~TWL4030_HF_CTL_HB_EN;
613 		twl4030_write(codec, reg, hs_ctl);
614 		hs_ctl &= ~TWL4030_HF_CTL_RAMP_EN;
615 		twl4030_write(codec, reg, hs_ctl);
616 		udelay(40);
617 		hs_ctl &= ~TWL4030_HF_CTL_REF_EN;
618 		twl4030_write(codec, reg, hs_ctl);
619 	}
620 }
621 
622 static int handsfreelpga_event(struct snd_soc_dapm_widget *w,
623 			       struct snd_kcontrol *kcontrol, int event)
624 {
625 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
626 
627 	switch (event) {
628 	case SND_SOC_DAPM_POST_PMU:
629 		handsfree_ramp(codec, TWL4030_REG_HFL_CTL, 1);
630 		break;
631 	case SND_SOC_DAPM_POST_PMD:
632 		handsfree_ramp(codec, TWL4030_REG_HFL_CTL, 0);
633 		break;
634 	}
635 	return 0;
636 }
637 
638 static int handsfreerpga_event(struct snd_soc_dapm_widget *w,
639 			       struct snd_kcontrol *kcontrol, int event)
640 {
641 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
642 
643 	switch (event) {
644 	case SND_SOC_DAPM_POST_PMU:
645 		handsfree_ramp(codec, TWL4030_REG_HFR_CTL, 1);
646 		break;
647 	case SND_SOC_DAPM_POST_PMD:
648 		handsfree_ramp(codec, TWL4030_REG_HFR_CTL, 0);
649 		break;
650 	}
651 	return 0;
652 }
653 
654 static int vibramux_event(struct snd_soc_dapm_widget *w,
655 			  struct snd_kcontrol *kcontrol, int event)
656 {
657 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
658 
659 	twl4030_write(codec, TWL4030_REG_VIBRA_SET, 0xff);
660 	return 0;
661 }
662 
663 static int apll_event(struct snd_soc_dapm_widget *w,
664 		      struct snd_kcontrol *kcontrol, int event)
665 {
666 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
667 
668 	switch (event) {
669 	case SND_SOC_DAPM_PRE_PMU:
670 		twl4030_apll_enable(codec, 1);
671 		break;
672 	case SND_SOC_DAPM_POST_PMD:
673 		twl4030_apll_enable(codec, 0);
674 		break;
675 	}
676 	return 0;
677 }
678 
679 static int aif_event(struct snd_soc_dapm_widget *w,
680 		     struct snd_kcontrol *kcontrol, int event)
681 {
682 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
683 	u8 audio_if;
684 
685 	audio_if = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
686 	switch (event) {
687 	case SND_SOC_DAPM_PRE_PMU:
688 		/* Enable AIF */
689 		/* enable the PLL before we use it to clock the DAI */
690 		twl4030_apll_enable(codec, 1);
691 
692 		twl4030_write(codec, TWL4030_REG_AUDIO_IF,
693 			      audio_if | TWL4030_AIF_EN);
694 		break;
695 	case SND_SOC_DAPM_POST_PMD:
696 		/* disable the DAI before we stop it's source PLL */
697 		twl4030_write(codec, TWL4030_REG_AUDIO_IF,
698 			      audio_if &  ~TWL4030_AIF_EN);
699 		twl4030_apll_enable(codec, 0);
700 		break;
701 	}
702 	return 0;
703 }
704 
705 static void headset_ramp(struct snd_soc_codec *codec, int ramp)
706 {
707 	unsigned char hs_gain, hs_pop;
708 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
709 	struct twl4030_codec_data *pdata = twl4030->pdata;
710 	/* Base values for ramp delay calculation: 2^19 - 2^26 */
711 	unsigned int ramp_base[] = {524288, 1048576, 2097152, 4194304,
712 				    8388608, 16777216, 33554432, 67108864};
713 	unsigned int delay;
714 
715 	hs_gain = twl4030_read(codec, TWL4030_REG_HS_GAIN_SET);
716 	hs_pop = twl4030_read(codec, TWL4030_REG_HS_POPN_SET);
717 	delay = (ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] /
718 		twl4030->sysclk) + 1;
719 
720 	/* Enable external mute control, this dramatically reduces
721 	 * the pop-noise */
722 	if (pdata && pdata->hs_extmute) {
723 		if (gpio_is_valid(pdata->hs_extmute_gpio)) {
724 			gpio_set_value(pdata->hs_extmute_gpio, 1);
725 		} else {
726 			hs_pop |= TWL4030_EXTMUTE;
727 			twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
728 		}
729 	}
730 
731 	if (ramp) {
732 		/* Headset ramp-up according to the TRM */
733 		hs_pop |= TWL4030_VMID_EN;
734 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
735 		/* Actually write to the register */
736 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain,
737 				 TWL4030_REG_HS_GAIN_SET);
738 		hs_pop |= TWL4030_RAMP_EN;
739 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
740 		/* Wait ramp delay time + 1, so the VMID can settle */
741 		twl4030_wait_ms(delay);
742 	} else {
743 		/* Headset ramp-down _not_ according to
744 		 * the TRM, but in a way that it is working */
745 		hs_pop &= ~TWL4030_RAMP_EN;
746 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
747 		/* Wait ramp delay time + 1, so the VMID can settle */
748 		twl4030_wait_ms(delay);
749 		/* Bypass the reg_cache to mute the headset */
750 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain & (~0x0f),
751 				 TWL4030_REG_HS_GAIN_SET);
752 
753 		hs_pop &= ~TWL4030_VMID_EN;
754 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
755 	}
756 
757 	/* Disable external mute */
758 	if (pdata && pdata->hs_extmute) {
759 		if (gpio_is_valid(pdata->hs_extmute_gpio)) {
760 			gpio_set_value(pdata->hs_extmute_gpio, 0);
761 		} else {
762 			hs_pop &= ~TWL4030_EXTMUTE;
763 			twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
764 		}
765 	}
766 }
767 
768 static int headsetlpga_event(struct snd_soc_dapm_widget *w,
769 			     struct snd_kcontrol *kcontrol, int event)
770 {
771 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
772 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
773 
774 	switch (event) {
775 	case SND_SOC_DAPM_POST_PMU:
776 		/* Do the ramp-up only once */
777 		if (!twl4030->hsr_enabled)
778 			headset_ramp(codec, 1);
779 
780 		twl4030->hsl_enabled = 1;
781 		break;
782 	case SND_SOC_DAPM_POST_PMD:
783 		/* Do the ramp-down only if both headsetL/R is disabled */
784 		if (!twl4030->hsr_enabled)
785 			headset_ramp(codec, 0);
786 
787 		twl4030->hsl_enabled = 0;
788 		break;
789 	}
790 	return 0;
791 }
792 
793 static int headsetrpga_event(struct snd_soc_dapm_widget *w,
794 			     struct snd_kcontrol *kcontrol, int event)
795 {
796 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
797 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
798 
799 	switch (event) {
800 	case SND_SOC_DAPM_POST_PMU:
801 		/* Do the ramp-up only once */
802 		if (!twl4030->hsl_enabled)
803 			headset_ramp(codec, 1);
804 
805 		twl4030->hsr_enabled = 1;
806 		break;
807 	case SND_SOC_DAPM_POST_PMD:
808 		/* Do the ramp-down only if both headsetL/R is disabled */
809 		if (!twl4030->hsl_enabled)
810 			headset_ramp(codec, 0);
811 
812 		twl4030->hsr_enabled = 0;
813 		break;
814 	}
815 	return 0;
816 }
817 
818 static int digimic_event(struct snd_soc_dapm_widget *w,
819 			 struct snd_kcontrol *kcontrol, int event)
820 {
821 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
822 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
823 	struct twl4030_codec_data *pdata = twl4030->pdata;
824 
825 	if (pdata && pdata->digimic_delay)
826 		twl4030_wait_ms(pdata->digimic_delay);
827 	return 0;
828 }
829 
830 /*
831  * Some of the gain controls in TWL (mostly those which are associated with
832  * the outputs) are implemented in an interesting way:
833  * 0x0 : Power down (mute)
834  * 0x1 : 6dB
835  * 0x2 : 0 dB
836  * 0x3 : -6 dB
837  * Inverting not going to help with these.
838  * Custom volsw and volsw_2r get/put functions to handle these gain bits.
839  */
840 static int snd_soc_get_volsw_twl4030(struct snd_kcontrol *kcontrol,
841 				     struct snd_ctl_elem_value *ucontrol)
842 {
843 	struct soc_mixer_control *mc =
844 		(struct soc_mixer_control *)kcontrol->private_value;
845 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
846 	unsigned int reg = mc->reg;
847 	unsigned int shift = mc->shift;
848 	unsigned int rshift = mc->rshift;
849 	int max = mc->max;
850 	int mask = (1 << fls(max)) - 1;
851 
852 	ucontrol->value.integer.value[0] =
853 		(snd_soc_read(codec, reg) >> shift) & mask;
854 	if (ucontrol->value.integer.value[0])
855 		ucontrol->value.integer.value[0] =
856 			max + 1 - ucontrol->value.integer.value[0];
857 
858 	if (shift != rshift) {
859 		ucontrol->value.integer.value[1] =
860 			(snd_soc_read(codec, reg) >> rshift) & mask;
861 		if (ucontrol->value.integer.value[1])
862 			ucontrol->value.integer.value[1] =
863 				max + 1 - ucontrol->value.integer.value[1];
864 	}
865 
866 	return 0;
867 }
868 
869 static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol,
870 				     struct snd_ctl_elem_value *ucontrol)
871 {
872 	struct soc_mixer_control *mc =
873 		(struct soc_mixer_control *)kcontrol->private_value;
874 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
875 	unsigned int reg = mc->reg;
876 	unsigned int shift = mc->shift;
877 	unsigned int rshift = mc->rshift;
878 	int max = mc->max;
879 	int mask = (1 << fls(max)) - 1;
880 	unsigned short val, val2, val_mask;
881 
882 	val = (ucontrol->value.integer.value[0] & mask);
883 
884 	val_mask = mask << shift;
885 	if (val)
886 		val = max + 1 - val;
887 	val = val << shift;
888 	if (shift != rshift) {
889 		val2 = (ucontrol->value.integer.value[1] & mask);
890 		val_mask |= mask << rshift;
891 		if (val2)
892 			val2 = max + 1 - val2;
893 		val |= val2 << rshift;
894 	}
895 	return snd_soc_update_bits(codec, reg, val_mask, val);
896 }
897 
898 static int snd_soc_get_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
899 					struct snd_ctl_elem_value *ucontrol)
900 {
901 	struct soc_mixer_control *mc =
902 		(struct soc_mixer_control *)kcontrol->private_value;
903 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
904 	unsigned int reg = mc->reg;
905 	unsigned int reg2 = mc->rreg;
906 	unsigned int shift = mc->shift;
907 	int max = mc->max;
908 	int mask = (1<<fls(max))-1;
909 
910 	ucontrol->value.integer.value[0] =
911 		(snd_soc_read(codec, reg) >> shift) & mask;
912 	ucontrol->value.integer.value[1] =
913 		(snd_soc_read(codec, reg2) >> shift) & mask;
914 
915 	if (ucontrol->value.integer.value[0])
916 		ucontrol->value.integer.value[0] =
917 			max + 1 - ucontrol->value.integer.value[0];
918 	if (ucontrol->value.integer.value[1])
919 		ucontrol->value.integer.value[1] =
920 			max + 1 - ucontrol->value.integer.value[1];
921 
922 	return 0;
923 }
924 
925 static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
926 					struct snd_ctl_elem_value *ucontrol)
927 {
928 	struct soc_mixer_control *mc =
929 		(struct soc_mixer_control *)kcontrol->private_value;
930 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
931 	unsigned int reg = mc->reg;
932 	unsigned int reg2 = mc->rreg;
933 	unsigned int shift = mc->shift;
934 	int max = mc->max;
935 	int mask = (1 << fls(max)) - 1;
936 	int err;
937 	unsigned short val, val2, val_mask;
938 
939 	val_mask = mask << shift;
940 	val = (ucontrol->value.integer.value[0] & mask);
941 	val2 = (ucontrol->value.integer.value[1] & mask);
942 
943 	if (val)
944 		val = max + 1 - val;
945 	if (val2)
946 		val2 = max + 1 - val2;
947 
948 	val = val << shift;
949 	val2 = val2 << shift;
950 
951 	err = snd_soc_update_bits(codec, reg, val_mask, val);
952 	if (err < 0)
953 		return err;
954 
955 	err = snd_soc_update_bits(codec, reg2, val_mask, val2);
956 	return err;
957 }
958 
959 /* Codec operation modes */
960 static const char *twl4030_op_modes_texts[] = {
961 	"Option 2 (voice/audio)", "Option 1 (audio)"
962 };
963 
964 static SOC_ENUM_SINGLE_DECL(twl4030_op_modes_enum,
965 			    TWL4030_REG_CODEC_MODE, 0,
966 			    twl4030_op_modes_texts);
967 
968 static int snd_soc_put_twl4030_opmode_enum_double(struct snd_kcontrol *kcontrol,
969 	struct snd_ctl_elem_value *ucontrol)
970 {
971 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
972 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
973 
974 	if (twl4030->configured) {
975 		dev_err(codec->dev,
976 			"operation mode cannot be changed on-the-fly\n");
977 		return -EBUSY;
978 	}
979 
980 	return snd_soc_put_enum_double(kcontrol, ucontrol);
981 }
982 
983 /*
984  * FGAIN volume control:
985  * from -62 to 0 dB in 1 dB steps (mute instead of -63 dB)
986  */
987 static DECLARE_TLV_DB_SCALE(digital_fine_tlv, -6300, 100, 1);
988 
989 /*
990  * CGAIN volume control:
991  * 0 dB to 12 dB in 6 dB steps
992  * value 2 and 3 means 12 dB
993  */
994 static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0, 600, 0);
995 
996 /*
997  * Voice Downlink GAIN volume control:
998  * from -37 to 12 dB in 1 dB steps (mute instead of -37 dB)
999  */
1000 static DECLARE_TLV_DB_SCALE(digital_voice_downlink_tlv, -3700, 100, 1);
1001 
1002 /*
1003  * Analog playback gain
1004  * -24 dB to 12 dB in 2 dB steps
1005  */
1006 static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0);
1007 
1008 /*
1009  * Gain controls tied to outputs
1010  * -6 dB to 6 dB in 6 dB steps (mute instead of -12)
1011  */
1012 static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1);
1013 
1014 /*
1015  * Gain control for earpiece amplifier
1016  * 0 dB to 12 dB in 6 dB steps (mute instead of -6)
1017  */
1018 static DECLARE_TLV_DB_SCALE(output_ear_tvl, -600, 600, 1);
1019 
1020 /*
1021  * Capture gain after the ADCs
1022  * from 0 dB to 31 dB in 1 dB steps
1023  */
1024 static DECLARE_TLV_DB_SCALE(digital_capture_tlv, 0, 100, 0);
1025 
1026 /*
1027  * Gain control for input amplifiers
1028  * 0 dB to 30 dB in 6 dB steps
1029  */
1030 static DECLARE_TLV_DB_SCALE(input_gain_tlv, 0, 600, 0);
1031 
1032 /* AVADC clock priority */
1033 static const char *twl4030_avadc_clk_priority_texts[] = {
1034 	"Voice high priority", "HiFi high priority"
1035 };
1036 
1037 static SOC_ENUM_SINGLE_DECL(twl4030_avadc_clk_priority_enum,
1038 			    TWL4030_REG_AVADC_CTL, 2,
1039 			    twl4030_avadc_clk_priority_texts);
1040 
1041 static const char *twl4030_rampdelay_texts[] = {
1042 	"27/20/14 ms", "55/40/27 ms", "109/81/55 ms", "218/161/109 ms",
1043 	"437/323/218 ms", "874/645/437 ms", "1748/1291/874 ms",
1044 	"3495/2581/1748 ms"
1045 };
1046 
1047 static SOC_ENUM_SINGLE_DECL(twl4030_rampdelay_enum,
1048 			    TWL4030_REG_HS_POPN_SET, 2,
1049 			    twl4030_rampdelay_texts);
1050 
1051 /* Vibra H-bridge direction mode */
1052 static const char *twl4030_vibradirmode_texts[] = {
1053 	"Vibra H-bridge direction", "Audio data MSB",
1054 };
1055 
1056 static SOC_ENUM_SINGLE_DECL(twl4030_vibradirmode_enum,
1057 			    TWL4030_REG_VIBRA_CTL, 5,
1058 			    twl4030_vibradirmode_texts);
1059 
1060 /* Vibra H-bridge direction */
1061 static const char *twl4030_vibradir_texts[] = {
1062 	"Positive polarity", "Negative polarity",
1063 };
1064 
1065 static SOC_ENUM_SINGLE_DECL(twl4030_vibradir_enum,
1066 			    TWL4030_REG_VIBRA_CTL, 1,
1067 			    twl4030_vibradir_texts);
1068 
1069 /* Digimic Left and right swapping */
1070 static const char *twl4030_digimicswap_texts[] = {
1071 	"Not swapped", "Swapped",
1072 };
1073 
1074 static SOC_ENUM_SINGLE_DECL(twl4030_digimicswap_enum,
1075 			    TWL4030_REG_MISC_SET_1, 0,
1076 			    twl4030_digimicswap_texts);
1077 
1078 static const struct snd_kcontrol_new twl4030_snd_controls[] = {
1079 	/* Codec operation mode control */
1080 	SOC_ENUM_EXT("Codec Operation Mode", twl4030_op_modes_enum,
1081 		snd_soc_get_enum_double,
1082 		snd_soc_put_twl4030_opmode_enum_double),
1083 
1084 	/* Common playback gain controls */
1085 	SOC_DOUBLE_R_TLV("DAC1 Digital Fine Playback Volume",
1086 		TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1087 		0, 0x3f, 0, digital_fine_tlv),
1088 	SOC_DOUBLE_R_TLV("DAC2 Digital Fine Playback Volume",
1089 		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1090 		0, 0x3f, 0, digital_fine_tlv),
1091 
1092 	SOC_DOUBLE_R_TLV("DAC1 Digital Coarse Playback Volume",
1093 		TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1094 		6, 0x2, 0, digital_coarse_tlv),
1095 	SOC_DOUBLE_R_TLV("DAC2 Digital Coarse Playback Volume",
1096 		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1097 		6, 0x2, 0, digital_coarse_tlv),
1098 
1099 	SOC_DOUBLE_R_TLV("DAC1 Analog Playback Volume",
1100 		TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1101 		3, 0x12, 1, analog_tlv),
1102 	SOC_DOUBLE_R_TLV("DAC2 Analog Playback Volume",
1103 		TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1104 		3, 0x12, 1, analog_tlv),
1105 	SOC_DOUBLE_R("DAC1 Analog Playback Switch",
1106 		TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1107 		1, 1, 0),
1108 	SOC_DOUBLE_R("DAC2 Analog Playback Switch",
1109 		TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1110 		1, 1, 0),
1111 
1112 	/* Common voice downlink gain controls */
1113 	SOC_SINGLE_TLV("DAC Voice Digital Downlink Volume",
1114 		TWL4030_REG_VRXPGA, 0, 0x31, 0, digital_voice_downlink_tlv),
1115 
1116 	SOC_SINGLE_TLV("DAC Voice Analog Downlink Volume",
1117 		TWL4030_REG_VDL_APGA_CTL, 3, 0x12, 1, analog_tlv),
1118 
1119 	SOC_SINGLE("DAC Voice Analog Downlink Switch",
1120 		TWL4030_REG_VDL_APGA_CTL, 1, 1, 0),
1121 
1122 	/* Separate output gain controls */
1123 	SOC_DOUBLE_R_EXT_TLV("PreDriv Playback Volume",
1124 		TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL,
1125 		4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1126 		snd_soc_put_volsw_r2_twl4030, output_tvl),
1127 
1128 	SOC_DOUBLE_EXT_TLV("Headset Playback Volume",
1129 		TWL4030_REG_HS_GAIN_SET, 0, 2, 3, 0, snd_soc_get_volsw_twl4030,
1130 		snd_soc_put_volsw_twl4030, output_tvl),
1131 
1132 	SOC_DOUBLE_R_EXT_TLV("Carkit Playback Volume",
1133 		TWL4030_REG_PRECKL_CTL, TWL4030_REG_PRECKR_CTL,
1134 		4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1135 		snd_soc_put_volsw_r2_twl4030, output_tvl),
1136 
1137 	SOC_SINGLE_EXT_TLV("Earpiece Playback Volume",
1138 		TWL4030_REG_EAR_CTL, 4, 3, 0, snd_soc_get_volsw_twl4030,
1139 		snd_soc_put_volsw_twl4030, output_ear_tvl),
1140 
1141 	/* Common capture gain controls */
1142 	SOC_DOUBLE_R_TLV("TX1 Digital Capture Volume",
1143 		TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA,
1144 		0, 0x1f, 0, digital_capture_tlv),
1145 	SOC_DOUBLE_R_TLV("TX2 Digital Capture Volume",
1146 		TWL4030_REG_AVTXL2PGA, TWL4030_REG_AVTXR2PGA,
1147 		0, 0x1f, 0, digital_capture_tlv),
1148 
1149 	SOC_DOUBLE_TLV("Analog Capture Volume", TWL4030_REG_ANAMIC_GAIN,
1150 		0, 3, 5, 0, input_gain_tlv),
1151 
1152 	SOC_ENUM("AVADC Clock Priority", twl4030_avadc_clk_priority_enum),
1153 
1154 	SOC_ENUM("HS ramp delay", twl4030_rampdelay_enum),
1155 
1156 	SOC_ENUM("Vibra H-bridge mode", twl4030_vibradirmode_enum),
1157 	SOC_ENUM("Vibra H-bridge direction", twl4030_vibradir_enum),
1158 
1159 	SOC_ENUM("Digimic LR Swap", twl4030_digimicswap_enum),
1160 };
1161 
1162 static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
1163 	/* Left channel inputs */
1164 	SND_SOC_DAPM_INPUT("MAINMIC"),
1165 	SND_SOC_DAPM_INPUT("HSMIC"),
1166 	SND_SOC_DAPM_INPUT("AUXL"),
1167 	SND_SOC_DAPM_INPUT("CARKITMIC"),
1168 	/* Right channel inputs */
1169 	SND_SOC_DAPM_INPUT("SUBMIC"),
1170 	SND_SOC_DAPM_INPUT("AUXR"),
1171 	/* Digital microphones (Stereo) */
1172 	SND_SOC_DAPM_INPUT("DIGIMIC0"),
1173 	SND_SOC_DAPM_INPUT("DIGIMIC1"),
1174 
1175 	/* Outputs */
1176 	SND_SOC_DAPM_OUTPUT("EARPIECE"),
1177 	SND_SOC_DAPM_OUTPUT("PREDRIVEL"),
1178 	SND_SOC_DAPM_OUTPUT("PREDRIVER"),
1179 	SND_SOC_DAPM_OUTPUT("HSOL"),
1180 	SND_SOC_DAPM_OUTPUT("HSOR"),
1181 	SND_SOC_DAPM_OUTPUT("CARKITL"),
1182 	SND_SOC_DAPM_OUTPUT("CARKITR"),
1183 	SND_SOC_DAPM_OUTPUT("HFL"),
1184 	SND_SOC_DAPM_OUTPUT("HFR"),
1185 	SND_SOC_DAPM_OUTPUT("VIBRA"),
1186 
1187 	/* AIF and APLL clocks for running DAIs (including loopback) */
1188 	SND_SOC_DAPM_OUTPUT("Virtual HiFi OUT"),
1189 	SND_SOC_DAPM_INPUT("Virtual HiFi IN"),
1190 	SND_SOC_DAPM_OUTPUT("Virtual Voice OUT"),
1191 
1192 	/* DACs */
1193 	SND_SOC_DAPM_DAC("DAC Right1", NULL, SND_SOC_NOPM, 0, 0),
1194 	SND_SOC_DAPM_DAC("DAC Left1", NULL, SND_SOC_NOPM, 0, 0),
1195 	SND_SOC_DAPM_DAC("DAC Right2", NULL, SND_SOC_NOPM, 0, 0),
1196 	SND_SOC_DAPM_DAC("DAC Left2", NULL, SND_SOC_NOPM, 0, 0),
1197 	SND_SOC_DAPM_DAC("DAC Voice", NULL, SND_SOC_NOPM, 0, 0),
1198 
1199 	SND_SOC_DAPM_AIF_IN("VAIFIN", "Voice Playback", 0,
1200 			    TWL4030_REG_VOICE_IF, 6, 0),
1201 
1202 	/* Analog bypasses */
1203 	SND_SOC_DAPM_SWITCH("Right1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1204 			&twl4030_dapm_abypassr1_control),
1205 	SND_SOC_DAPM_SWITCH("Left1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1206 			&twl4030_dapm_abypassl1_control),
1207 	SND_SOC_DAPM_SWITCH("Right2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1208 			&twl4030_dapm_abypassr2_control),
1209 	SND_SOC_DAPM_SWITCH("Left2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1210 			&twl4030_dapm_abypassl2_control),
1211 	SND_SOC_DAPM_SWITCH("Voice Analog Loopback", SND_SOC_NOPM, 0, 0,
1212 			&twl4030_dapm_abypassv_control),
1213 
1214 	/* Master analog loopback switch */
1215 	SND_SOC_DAPM_SUPPLY("FM Loop Enable", TWL4030_REG_MISC_SET_1, 5, 0,
1216 			    NULL, 0),
1217 
1218 	/* Digital bypasses */
1219 	SND_SOC_DAPM_SWITCH("Left Digital Loopback", SND_SOC_NOPM, 0, 0,
1220 			&twl4030_dapm_dbypassl_control),
1221 	SND_SOC_DAPM_SWITCH("Right Digital Loopback", SND_SOC_NOPM, 0, 0,
1222 			&twl4030_dapm_dbypassr_control),
1223 	SND_SOC_DAPM_SWITCH("Voice Digital Loopback", SND_SOC_NOPM, 0, 0,
1224 			&twl4030_dapm_dbypassv_control),
1225 
1226 	/* Digital mixers, power control for the physical DACs */
1227 	SND_SOC_DAPM_MIXER("Digital R1 Playback Mixer",
1228 			TWL4030_REG_AVDAC_CTL, 0, 0, NULL, 0),
1229 	SND_SOC_DAPM_MIXER("Digital L1 Playback Mixer",
1230 			TWL4030_REG_AVDAC_CTL, 1, 0, NULL, 0),
1231 	SND_SOC_DAPM_MIXER("Digital R2 Playback Mixer",
1232 			TWL4030_REG_AVDAC_CTL, 2, 0, NULL, 0),
1233 	SND_SOC_DAPM_MIXER("Digital L2 Playback Mixer",
1234 			TWL4030_REG_AVDAC_CTL, 3, 0, NULL, 0),
1235 	SND_SOC_DAPM_MIXER("Digital Voice Playback Mixer",
1236 			TWL4030_REG_AVDAC_CTL, 4, 0, NULL, 0),
1237 
1238 	/* Analog mixers, power control for the physical PGAs */
1239 	SND_SOC_DAPM_MIXER("Analog R1 Playback Mixer",
1240 			TWL4030_REG_ARXR1_APGA_CTL, 0, 0, NULL, 0),
1241 	SND_SOC_DAPM_MIXER("Analog L1 Playback Mixer",
1242 			TWL4030_REG_ARXL1_APGA_CTL, 0, 0, NULL, 0),
1243 	SND_SOC_DAPM_MIXER("Analog R2 Playback Mixer",
1244 			TWL4030_REG_ARXR2_APGA_CTL, 0, 0, NULL, 0),
1245 	SND_SOC_DAPM_MIXER("Analog L2 Playback Mixer",
1246 			TWL4030_REG_ARXL2_APGA_CTL, 0, 0, NULL, 0),
1247 	SND_SOC_DAPM_MIXER("Analog Voice Playback Mixer",
1248 			TWL4030_REG_VDL_APGA_CTL, 0, 0, NULL, 0),
1249 
1250 	SND_SOC_DAPM_SUPPLY("APLL Enable", SND_SOC_NOPM, 0, 0, apll_event,
1251 			    SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1252 
1253 	SND_SOC_DAPM_SUPPLY("AIF Enable", SND_SOC_NOPM, 0, 0, aif_event,
1254 			    SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1255 
1256 	/* Output MIXER controls */
1257 	/* Earpiece */
1258 	SND_SOC_DAPM_MIXER("Earpiece Mixer", SND_SOC_NOPM, 0, 0,
1259 			&twl4030_dapm_earpiece_controls[0],
1260 			ARRAY_SIZE(twl4030_dapm_earpiece_controls)),
1261 	SND_SOC_DAPM_PGA_E("Earpiece PGA", SND_SOC_NOPM,
1262 			0, 0, NULL, 0, earpiecepga_event,
1263 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1264 	/* PreDrivL/R */
1265 	SND_SOC_DAPM_MIXER("PredriveL Mixer", SND_SOC_NOPM, 0, 0,
1266 			&twl4030_dapm_predrivel_controls[0],
1267 			ARRAY_SIZE(twl4030_dapm_predrivel_controls)),
1268 	SND_SOC_DAPM_PGA_E("PredriveL PGA", SND_SOC_NOPM,
1269 			0, 0, NULL, 0, predrivelpga_event,
1270 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1271 	SND_SOC_DAPM_MIXER("PredriveR Mixer", SND_SOC_NOPM, 0, 0,
1272 			&twl4030_dapm_predriver_controls[0],
1273 			ARRAY_SIZE(twl4030_dapm_predriver_controls)),
1274 	SND_SOC_DAPM_PGA_E("PredriveR PGA", SND_SOC_NOPM,
1275 			0, 0, NULL, 0, predriverpga_event,
1276 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1277 	/* HeadsetL/R */
1278 	SND_SOC_DAPM_MIXER("HeadsetL Mixer", SND_SOC_NOPM, 0, 0,
1279 			&twl4030_dapm_hsol_controls[0],
1280 			ARRAY_SIZE(twl4030_dapm_hsol_controls)),
1281 	SND_SOC_DAPM_PGA_E("HeadsetL PGA", SND_SOC_NOPM,
1282 			0, 0, NULL, 0, headsetlpga_event,
1283 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1284 	SND_SOC_DAPM_MIXER("HeadsetR Mixer", SND_SOC_NOPM, 0, 0,
1285 			&twl4030_dapm_hsor_controls[0],
1286 			ARRAY_SIZE(twl4030_dapm_hsor_controls)),
1287 	SND_SOC_DAPM_PGA_E("HeadsetR PGA", SND_SOC_NOPM,
1288 			0, 0, NULL, 0, headsetrpga_event,
1289 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1290 	/* CarkitL/R */
1291 	SND_SOC_DAPM_MIXER("CarkitL Mixer", SND_SOC_NOPM, 0, 0,
1292 			&twl4030_dapm_carkitl_controls[0],
1293 			ARRAY_SIZE(twl4030_dapm_carkitl_controls)),
1294 	SND_SOC_DAPM_PGA_E("CarkitL PGA", SND_SOC_NOPM,
1295 			0, 0, NULL, 0, carkitlpga_event,
1296 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1297 	SND_SOC_DAPM_MIXER("CarkitR Mixer", SND_SOC_NOPM, 0, 0,
1298 			&twl4030_dapm_carkitr_controls[0],
1299 			ARRAY_SIZE(twl4030_dapm_carkitr_controls)),
1300 	SND_SOC_DAPM_PGA_E("CarkitR PGA", SND_SOC_NOPM,
1301 			0, 0, NULL, 0, carkitrpga_event,
1302 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1303 
1304 	/* Output MUX controls */
1305 	/* HandsfreeL/R */
1306 	SND_SOC_DAPM_MUX("HandsfreeL Mux", SND_SOC_NOPM, 0, 0,
1307 		&twl4030_dapm_handsfreel_control),
1308 	SND_SOC_DAPM_SWITCH("HandsfreeL", SND_SOC_NOPM, 0, 0,
1309 			&twl4030_dapm_handsfreelmute_control),
1310 	SND_SOC_DAPM_PGA_E("HandsfreeL PGA", SND_SOC_NOPM,
1311 			0, 0, NULL, 0, handsfreelpga_event,
1312 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1313 	SND_SOC_DAPM_MUX("HandsfreeR Mux", SND_SOC_NOPM, 5, 0,
1314 		&twl4030_dapm_handsfreer_control),
1315 	SND_SOC_DAPM_SWITCH("HandsfreeR", SND_SOC_NOPM, 0, 0,
1316 			&twl4030_dapm_handsfreermute_control),
1317 	SND_SOC_DAPM_PGA_E("HandsfreeR PGA", SND_SOC_NOPM,
1318 			0, 0, NULL, 0, handsfreerpga_event,
1319 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1320 	/* Vibra */
1321 	SND_SOC_DAPM_MUX_E("Vibra Mux", TWL4030_REG_VIBRA_CTL, 0, 0,
1322 			   &twl4030_dapm_vibra_control, vibramux_event,
1323 			   SND_SOC_DAPM_PRE_PMU),
1324 	SND_SOC_DAPM_MUX("Vibra Route", SND_SOC_NOPM, 0, 0,
1325 		&twl4030_dapm_vibrapath_control),
1326 
1327 	/* Introducing four virtual ADC, since TWL4030 have four channel for
1328 	   capture */
1329 	SND_SOC_DAPM_ADC("ADC Virtual Left1", NULL, SND_SOC_NOPM, 0, 0),
1330 	SND_SOC_DAPM_ADC("ADC Virtual Right1", NULL, SND_SOC_NOPM, 0, 0),
1331 	SND_SOC_DAPM_ADC("ADC Virtual Left2", NULL, SND_SOC_NOPM, 0, 0),
1332 	SND_SOC_DAPM_ADC("ADC Virtual Right2", NULL, SND_SOC_NOPM, 0, 0),
1333 
1334 	SND_SOC_DAPM_AIF_OUT("VAIFOUT", "Voice Capture", 0,
1335 			     TWL4030_REG_VOICE_IF, 5, 0),
1336 
1337 	/* Analog/Digital mic path selection.
1338 	   TX1 Left/Right: either analog Left/Right or Digimic0
1339 	   TX2 Left/Right: either analog Left/Right or Digimic1 */
1340 	SND_SOC_DAPM_MUX("TX1 Capture Route", SND_SOC_NOPM, 0, 0,
1341 		&twl4030_dapm_micpathtx1_control),
1342 	SND_SOC_DAPM_MUX("TX2 Capture Route", SND_SOC_NOPM, 0, 0,
1343 		&twl4030_dapm_micpathtx2_control),
1344 
1345 	/* Analog input mixers for the capture amplifiers */
1346 	SND_SOC_DAPM_MIXER("Analog Left",
1347 		TWL4030_REG_ANAMICL, 4, 0,
1348 		&twl4030_dapm_analoglmic_controls[0],
1349 		ARRAY_SIZE(twl4030_dapm_analoglmic_controls)),
1350 	SND_SOC_DAPM_MIXER("Analog Right",
1351 		TWL4030_REG_ANAMICR, 4, 0,
1352 		&twl4030_dapm_analogrmic_controls[0],
1353 		ARRAY_SIZE(twl4030_dapm_analogrmic_controls)),
1354 
1355 	SND_SOC_DAPM_PGA("ADC Physical Left",
1356 		TWL4030_REG_AVADC_CTL, 3, 0, NULL, 0),
1357 	SND_SOC_DAPM_PGA("ADC Physical Right",
1358 		TWL4030_REG_AVADC_CTL, 1, 0, NULL, 0),
1359 
1360 	SND_SOC_DAPM_PGA_E("Digimic0 Enable",
1361 		TWL4030_REG_ADCMICSEL, 1, 0, NULL, 0,
1362 		digimic_event, SND_SOC_DAPM_POST_PMU),
1363 	SND_SOC_DAPM_PGA_E("Digimic1 Enable",
1364 		TWL4030_REG_ADCMICSEL, 3, 0, NULL, 0,
1365 		digimic_event, SND_SOC_DAPM_POST_PMU),
1366 
1367 	SND_SOC_DAPM_SUPPLY("micbias1 select", TWL4030_REG_MICBIAS_CTL, 5, 0,
1368 			    NULL, 0),
1369 	SND_SOC_DAPM_SUPPLY("micbias2 select", TWL4030_REG_MICBIAS_CTL, 6, 0,
1370 			    NULL, 0),
1371 
1372 	/* Microphone bias */
1373 	SND_SOC_DAPM_SUPPLY("Mic Bias 1",
1374 			    TWL4030_REG_MICBIAS_CTL, 0, 0, NULL, 0),
1375 	SND_SOC_DAPM_SUPPLY("Mic Bias 2",
1376 			    TWL4030_REG_MICBIAS_CTL, 1, 0, NULL, 0),
1377 	SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
1378 			    TWL4030_REG_MICBIAS_CTL, 2, 0, NULL, 0),
1379 
1380 	SND_SOC_DAPM_SUPPLY("VIF Enable", TWL4030_REG_VOICE_IF, 0, 0, NULL, 0),
1381 };
1382 
1383 static const struct snd_soc_dapm_route intercon[] = {
1384 	/* Stream -> DAC mapping */
1385 	{"DAC Right1", NULL, "HiFi Playback"},
1386 	{"DAC Left1", NULL, "HiFi Playback"},
1387 	{"DAC Right2", NULL, "HiFi Playback"},
1388 	{"DAC Left2", NULL, "HiFi Playback"},
1389 	{"DAC Voice", NULL, "VAIFIN"},
1390 
1391 	/* ADC -> Stream mapping */
1392 	{"HiFi Capture", NULL, "ADC Virtual Left1"},
1393 	{"HiFi Capture", NULL, "ADC Virtual Right1"},
1394 	{"HiFi Capture", NULL, "ADC Virtual Left2"},
1395 	{"HiFi Capture", NULL, "ADC Virtual Right2"},
1396 	{"VAIFOUT", NULL, "ADC Virtual Left2"},
1397 	{"VAIFOUT", NULL, "ADC Virtual Right2"},
1398 	{"VAIFOUT", NULL, "VIF Enable"},
1399 
1400 	{"Digital L1 Playback Mixer", NULL, "DAC Left1"},
1401 	{"Digital R1 Playback Mixer", NULL, "DAC Right1"},
1402 	{"Digital L2 Playback Mixer", NULL, "DAC Left2"},
1403 	{"Digital R2 Playback Mixer", NULL, "DAC Right2"},
1404 	{"Digital Voice Playback Mixer", NULL, "DAC Voice"},
1405 
1406 	/* Supply for the digital part (APLL) */
1407 	{"Digital Voice Playback Mixer", NULL, "APLL Enable"},
1408 
1409 	{"DAC Left1", NULL, "AIF Enable"},
1410 	{"DAC Right1", NULL, "AIF Enable"},
1411 	{"DAC Left2", NULL, "AIF Enable"},
1412 	{"DAC Right1", NULL, "AIF Enable"},
1413 	{"DAC Voice", NULL, "VIF Enable"},
1414 
1415 	{"Digital R2 Playback Mixer", NULL, "AIF Enable"},
1416 	{"Digital L2 Playback Mixer", NULL, "AIF Enable"},
1417 
1418 	{"Analog L1 Playback Mixer", NULL, "Digital L1 Playback Mixer"},
1419 	{"Analog R1 Playback Mixer", NULL, "Digital R1 Playback Mixer"},
1420 	{"Analog L2 Playback Mixer", NULL, "Digital L2 Playback Mixer"},
1421 	{"Analog R2 Playback Mixer", NULL, "Digital R2 Playback Mixer"},
1422 	{"Analog Voice Playback Mixer", NULL, "Digital Voice Playback Mixer"},
1423 
1424 	/* Internal playback routings */
1425 	/* Earpiece */
1426 	{"Earpiece Mixer", "Voice", "Analog Voice Playback Mixer"},
1427 	{"Earpiece Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1428 	{"Earpiece Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1429 	{"Earpiece Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1430 	{"Earpiece PGA", NULL, "Earpiece Mixer"},
1431 	/* PreDrivL */
1432 	{"PredriveL Mixer", "Voice", "Analog Voice Playback Mixer"},
1433 	{"PredriveL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1434 	{"PredriveL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1435 	{"PredriveL Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1436 	{"PredriveL PGA", NULL, "PredriveL Mixer"},
1437 	/* PreDrivR */
1438 	{"PredriveR Mixer", "Voice", "Analog Voice Playback Mixer"},
1439 	{"PredriveR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1440 	{"PredriveR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1441 	{"PredriveR Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1442 	{"PredriveR PGA", NULL, "PredriveR Mixer"},
1443 	/* HeadsetL */
1444 	{"HeadsetL Mixer", "Voice", "Analog Voice Playback Mixer"},
1445 	{"HeadsetL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1446 	{"HeadsetL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1447 	{"HeadsetL PGA", NULL, "HeadsetL Mixer"},
1448 	/* HeadsetR */
1449 	{"HeadsetR Mixer", "Voice", "Analog Voice Playback Mixer"},
1450 	{"HeadsetR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1451 	{"HeadsetR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1452 	{"HeadsetR PGA", NULL, "HeadsetR Mixer"},
1453 	/* CarkitL */
1454 	{"CarkitL Mixer", "Voice", "Analog Voice Playback Mixer"},
1455 	{"CarkitL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1456 	{"CarkitL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1457 	{"CarkitL PGA", NULL, "CarkitL Mixer"},
1458 	/* CarkitR */
1459 	{"CarkitR Mixer", "Voice", "Analog Voice Playback Mixer"},
1460 	{"CarkitR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1461 	{"CarkitR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1462 	{"CarkitR PGA", NULL, "CarkitR Mixer"},
1463 	/* HandsfreeL */
1464 	{"HandsfreeL Mux", "Voice", "Analog Voice Playback Mixer"},
1465 	{"HandsfreeL Mux", "AudioL1", "Analog L1 Playback Mixer"},
1466 	{"HandsfreeL Mux", "AudioL2", "Analog L2 Playback Mixer"},
1467 	{"HandsfreeL Mux", "AudioR2", "Analog R2 Playback Mixer"},
1468 	{"HandsfreeL", "Switch", "HandsfreeL Mux"},
1469 	{"HandsfreeL PGA", NULL, "HandsfreeL"},
1470 	/* HandsfreeR */
1471 	{"HandsfreeR Mux", "Voice", "Analog Voice Playback Mixer"},
1472 	{"HandsfreeR Mux", "AudioR1", "Analog R1 Playback Mixer"},
1473 	{"HandsfreeR Mux", "AudioR2", "Analog R2 Playback Mixer"},
1474 	{"HandsfreeR Mux", "AudioL2", "Analog L2 Playback Mixer"},
1475 	{"HandsfreeR", "Switch", "HandsfreeR Mux"},
1476 	{"HandsfreeR PGA", NULL, "HandsfreeR"},
1477 	/* Vibra */
1478 	{"Vibra Mux", "AudioL1", "DAC Left1"},
1479 	{"Vibra Mux", "AudioR1", "DAC Right1"},
1480 	{"Vibra Mux", "AudioL2", "DAC Left2"},
1481 	{"Vibra Mux", "AudioR2", "DAC Right2"},
1482 
1483 	/* outputs */
1484 	/* Must be always connected (for AIF and APLL) */
1485 	{"Virtual HiFi OUT", NULL, "DAC Left1"},
1486 	{"Virtual HiFi OUT", NULL, "DAC Right1"},
1487 	{"Virtual HiFi OUT", NULL, "DAC Left2"},
1488 	{"Virtual HiFi OUT", NULL, "DAC Right2"},
1489 	/* Must be always connected (for APLL) */
1490 	{"Virtual Voice OUT", NULL, "Digital Voice Playback Mixer"},
1491 	/* Physical outputs */
1492 	{"EARPIECE", NULL, "Earpiece PGA"},
1493 	{"PREDRIVEL", NULL, "PredriveL PGA"},
1494 	{"PREDRIVER", NULL, "PredriveR PGA"},
1495 	{"HSOL", NULL, "HeadsetL PGA"},
1496 	{"HSOR", NULL, "HeadsetR PGA"},
1497 	{"CARKITL", NULL, "CarkitL PGA"},
1498 	{"CARKITR", NULL, "CarkitR PGA"},
1499 	{"HFL", NULL, "HandsfreeL PGA"},
1500 	{"HFR", NULL, "HandsfreeR PGA"},
1501 	{"Vibra Route", "Audio", "Vibra Mux"},
1502 	{"VIBRA", NULL, "Vibra Route"},
1503 
1504 	/* Capture path */
1505 	/* Must be always connected (for AIF and APLL) */
1506 	{"ADC Virtual Left1", NULL, "Virtual HiFi IN"},
1507 	{"ADC Virtual Right1", NULL, "Virtual HiFi IN"},
1508 	{"ADC Virtual Left2", NULL, "Virtual HiFi IN"},
1509 	{"ADC Virtual Right2", NULL, "Virtual HiFi IN"},
1510 	/* Physical inputs */
1511 	{"Analog Left", "Main Mic Capture Switch", "MAINMIC"},
1512 	{"Analog Left", "Headset Mic Capture Switch", "HSMIC"},
1513 	{"Analog Left", "AUXL Capture Switch", "AUXL"},
1514 	{"Analog Left", "Carkit Mic Capture Switch", "CARKITMIC"},
1515 
1516 	{"Analog Right", "Sub Mic Capture Switch", "SUBMIC"},
1517 	{"Analog Right", "AUXR Capture Switch", "AUXR"},
1518 
1519 	{"ADC Physical Left", NULL, "Analog Left"},
1520 	{"ADC Physical Right", NULL, "Analog Right"},
1521 
1522 	{"Digimic0 Enable", NULL, "DIGIMIC0"},
1523 	{"Digimic1 Enable", NULL, "DIGIMIC1"},
1524 
1525 	{"DIGIMIC0", NULL, "micbias1 select"},
1526 	{"DIGIMIC1", NULL, "micbias2 select"},
1527 
1528 	/* TX1 Left capture path */
1529 	{"TX1 Capture Route", "Analog", "ADC Physical Left"},
1530 	{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1531 	/* TX1 Right capture path */
1532 	{"TX1 Capture Route", "Analog", "ADC Physical Right"},
1533 	{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1534 	/* TX2 Left capture path */
1535 	{"TX2 Capture Route", "Analog", "ADC Physical Left"},
1536 	{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1537 	/* TX2 Right capture path */
1538 	{"TX2 Capture Route", "Analog", "ADC Physical Right"},
1539 	{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1540 
1541 	{"ADC Virtual Left1", NULL, "TX1 Capture Route"},
1542 	{"ADC Virtual Right1", NULL, "TX1 Capture Route"},
1543 	{"ADC Virtual Left2", NULL, "TX2 Capture Route"},
1544 	{"ADC Virtual Right2", NULL, "TX2 Capture Route"},
1545 
1546 	{"ADC Virtual Left1", NULL, "AIF Enable"},
1547 	{"ADC Virtual Right1", NULL, "AIF Enable"},
1548 	{"ADC Virtual Left2", NULL, "AIF Enable"},
1549 	{"ADC Virtual Right2", NULL, "AIF Enable"},
1550 
1551 	/* Analog bypass routes */
1552 	{"Right1 Analog Loopback", "Switch", "Analog Right"},
1553 	{"Left1 Analog Loopback", "Switch", "Analog Left"},
1554 	{"Right2 Analog Loopback", "Switch", "Analog Right"},
1555 	{"Left2 Analog Loopback", "Switch", "Analog Left"},
1556 	{"Voice Analog Loopback", "Switch", "Analog Left"},
1557 
1558 	/* Supply for the Analog loopbacks */
1559 	{"Right1 Analog Loopback", NULL, "FM Loop Enable"},
1560 	{"Left1 Analog Loopback", NULL, "FM Loop Enable"},
1561 	{"Right2 Analog Loopback", NULL, "FM Loop Enable"},
1562 	{"Left2 Analog Loopback", NULL, "FM Loop Enable"},
1563 	{"Voice Analog Loopback", NULL, "FM Loop Enable"},
1564 
1565 	{"Analog R1 Playback Mixer", NULL, "Right1 Analog Loopback"},
1566 	{"Analog L1 Playback Mixer", NULL, "Left1 Analog Loopback"},
1567 	{"Analog R2 Playback Mixer", NULL, "Right2 Analog Loopback"},
1568 	{"Analog L2 Playback Mixer", NULL, "Left2 Analog Loopback"},
1569 	{"Analog Voice Playback Mixer", NULL, "Voice Analog Loopback"},
1570 
1571 	/* Digital bypass routes */
1572 	{"Right Digital Loopback", "Volume", "TX1 Capture Route"},
1573 	{"Left Digital Loopback", "Volume", "TX1 Capture Route"},
1574 	{"Voice Digital Loopback", "Volume", "TX2 Capture Route"},
1575 
1576 	{"Digital R2 Playback Mixer", NULL, "Right Digital Loopback"},
1577 	{"Digital L2 Playback Mixer", NULL, "Left Digital Loopback"},
1578 	{"Digital Voice Playback Mixer", NULL, "Voice Digital Loopback"},
1579 
1580 };
1581 
1582 static int twl4030_set_bias_level(struct snd_soc_codec *codec,
1583 				  enum snd_soc_bias_level level)
1584 {
1585 	switch (level) {
1586 	case SND_SOC_BIAS_ON:
1587 		break;
1588 	case SND_SOC_BIAS_PREPARE:
1589 		break;
1590 	case SND_SOC_BIAS_STANDBY:
1591 		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF)
1592 			twl4030_codec_enable(codec, 1);
1593 		break;
1594 	case SND_SOC_BIAS_OFF:
1595 		twl4030_codec_enable(codec, 0);
1596 		break;
1597 	}
1598 	codec->dapm.bias_level = level;
1599 
1600 	return 0;
1601 }
1602 
1603 static void twl4030_constraints(struct twl4030_priv *twl4030,
1604 				struct snd_pcm_substream *mst_substream)
1605 {
1606 	struct snd_pcm_substream *slv_substream;
1607 
1608 	/* Pick the stream, which need to be constrained */
1609 	if (mst_substream == twl4030->master_substream)
1610 		slv_substream = twl4030->slave_substream;
1611 	else if (mst_substream == twl4030->slave_substream)
1612 		slv_substream = twl4030->master_substream;
1613 	else /* This should not happen.. */
1614 		return;
1615 
1616 	/* Set the constraints according to the already configured stream */
1617 	snd_pcm_hw_constraint_minmax(slv_substream->runtime,
1618 				SNDRV_PCM_HW_PARAM_RATE,
1619 				twl4030->rate,
1620 				twl4030->rate);
1621 
1622 	snd_pcm_hw_constraint_minmax(slv_substream->runtime,
1623 				SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
1624 				twl4030->sample_bits,
1625 				twl4030->sample_bits);
1626 
1627 	snd_pcm_hw_constraint_minmax(slv_substream->runtime,
1628 				SNDRV_PCM_HW_PARAM_CHANNELS,
1629 				twl4030->channels,
1630 				twl4030->channels);
1631 }
1632 
1633 /* In case of 4 channel mode, the RX1 L/R for playback and the TX2 L/R for
1634  * capture has to be enabled/disabled. */
1635 static void twl4030_tdm_enable(struct snd_soc_codec *codec, int direction,
1636 			       int enable)
1637 {
1638 	u8 reg, mask;
1639 
1640 	reg = twl4030_read(codec, TWL4030_REG_OPTION);
1641 
1642 	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1643 		mask = TWL4030_ARXL1_VRX_EN | TWL4030_ARXR1_EN;
1644 	else
1645 		mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1646 
1647 	if (enable)
1648 		reg |= mask;
1649 	else
1650 		reg &= ~mask;
1651 
1652 	twl4030_write(codec, TWL4030_REG_OPTION, reg);
1653 }
1654 
1655 static int twl4030_startup(struct snd_pcm_substream *substream,
1656 			   struct snd_soc_dai *dai)
1657 {
1658 	struct snd_soc_codec *codec = dai->codec;
1659 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1660 
1661 	if (twl4030->master_substream) {
1662 		twl4030->slave_substream = substream;
1663 		/* The DAI has one configuration for playback and capture, so
1664 		 * if the DAI has been already configured then constrain this
1665 		 * substream to match it. */
1666 		if (twl4030->configured)
1667 			twl4030_constraints(twl4030, twl4030->master_substream);
1668 	} else {
1669 		if (!(twl4030_read(codec, TWL4030_REG_CODEC_MODE) &
1670 			TWL4030_OPTION_1)) {
1671 			/* In option2 4 channel is not supported, set the
1672 			 * constraint for the first stream for channels, the
1673 			 * second stream will 'inherit' this cosntraint */
1674 			snd_pcm_hw_constraint_minmax(substream->runtime,
1675 						     SNDRV_PCM_HW_PARAM_CHANNELS,
1676 						     2, 2);
1677 		}
1678 		twl4030->master_substream = substream;
1679 	}
1680 
1681 	return 0;
1682 }
1683 
1684 static void twl4030_shutdown(struct snd_pcm_substream *substream,
1685 			     struct snd_soc_dai *dai)
1686 {
1687 	struct snd_soc_codec *codec = dai->codec;
1688 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1689 
1690 	if (twl4030->master_substream == substream)
1691 		twl4030->master_substream = twl4030->slave_substream;
1692 
1693 	twl4030->slave_substream = NULL;
1694 
1695 	/* If all streams are closed, or the remaining stream has not yet
1696 	 * been configured than set the DAI as not configured. */
1697 	if (!twl4030->master_substream)
1698 		twl4030->configured = 0;
1699 	 else if (!twl4030->master_substream->runtime->channels)
1700 		twl4030->configured = 0;
1701 
1702 	 /* If the closing substream had 4 channel, do the necessary cleanup */
1703 	if (substream->runtime->channels == 4)
1704 		twl4030_tdm_enable(codec, substream->stream, 0);
1705 }
1706 
1707 static int twl4030_hw_params(struct snd_pcm_substream *substream,
1708 			     struct snd_pcm_hw_params *params,
1709 			     struct snd_soc_dai *dai)
1710 {
1711 	struct snd_soc_codec *codec = dai->codec;
1712 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1713 	u8 mode, old_mode, format, old_format;
1714 
1715 	 /* If the substream has 4 channel, do the necessary setup */
1716 	if (params_channels(params) == 4) {
1717 		format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1718 		mode = twl4030_read(codec, TWL4030_REG_CODEC_MODE);
1719 
1720 		/* Safety check: are we in the correct operating mode and
1721 		 * the interface is in TDM mode? */
1722 		if ((mode & TWL4030_OPTION_1) &&
1723 		    ((format & TWL4030_AIF_FORMAT) == TWL4030_AIF_FORMAT_TDM))
1724 			twl4030_tdm_enable(codec, substream->stream, 1);
1725 		else
1726 			return -EINVAL;
1727 	}
1728 
1729 	if (twl4030->configured)
1730 		/* Ignoring hw_params for already configured DAI */
1731 		return 0;
1732 
1733 	/* bit rate */
1734 	old_mode = twl4030_read(codec,
1735 				TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1736 	mode = old_mode & ~TWL4030_APLL_RATE;
1737 
1738 	switch (params_rate(params)) {
1739 	case 8000:
1740 		mode |= TWL4030_APLL_RATE_8000;
1741 		break;
1742 	case 11025:
1743 		mode |= TWL4030_APLL_RATE_11025;
1744 		break;
1745 	case 12000:
1746 		mode |= TWL4030_APLL_RATE_12000;
1747 		break;
1748 	case 16000:
1749 		mode |= TWL4030_APLL_RATE_16000;
1750 		break;
1751 	case 22050:
1752 		mode |= TWL4030_APLL_RATE_22050;
1753 		break;
1754 	case 24000:
1755 		mode |= TWL4030_APLL_RATE_24000;
1756 		break;
1757 	case 32000:
1758 		mode |= TWL4030_APLL_RATE_32000;
1759 		break;
1760 	case 44100:
1761 		mode |= TWL4030_APLL_RATE_44100;
1762 		break;
1763 	case 48000:
1764 		mode |= TWL4030_APLL_RATE_48000;
1765 		break;
1766 	case 96000:
1767 		mode |= TWL4030_APLL_RATE_96000;
1768 		break;
1769 	default:
1770 		dev_err(codec->dev, "%s: unknown rate %d\n", __func__,
1771 			params_rate(params));
1772 		return -EINVAL;
1773 	}
1774 
1775 	/* sample size */
1776 	old_format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1777 	format = old_format;
1778 	format &= ~TWL4030_DATA_WIDTH;
1779 	switch (params_width(params)) {
1780 	case 16:
1781 		format |= TWL4030_DATA_WIDTH_16S_16W;
1782 		break;
1783 	case 32:
1784 		format |= TWL4030_DATA_WIDTH_32S_24W;
1785 		break;
1786 	default:
1787 		dev_err(codec->dev, "%s: unsupported bits/sample %d\n",
1788 			__func__, params_width(params));
1789 		return -EINVAL;
1790 	}
1791 
1792 	if (format != old_format || mode != old_mode) {
1793 		if (twl4030->codec_powered) {
1794 			/*
1795 			 * If the codec is powered, than we need to toggle the
1796 			 * codec power.
1797 			 */
1798 			twl4030_codec_enable(codec, 0);
1799 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
1800 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1801 			twl4030_codec_enable(codec, 1);
1802 		} else {
1803 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
1804 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1805 		}
1806 	}
1807 
1808 	/* Store the important parameters for the DAI configuration and set
1809 	 * the DAI as configured */
1810 	twl4030->configured = 1;
1811 	twl4030->rate = params_rate(params);
1812 	twl4030->sample_bits = hw_param_interval(params,
1813 					SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;
1814 	twl4030->channels = params_channels(params);
1815 
1816 	/* If both playback and capture streams are open, and one of them
1817 	 * is setting the hw parameters right now (since we are here), set
1818 	 * constraints to the other stream to match the current one. */
1819 	if (twl4030->slave_substream)
1820 		twl4030_constraints(twl4030, substream);
1821 
1822 	return 0;
1823 }
1824 
1825 static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id,
1826 				  unsigned int freq, int dir)
1827 {
1828 	struct snd_soc_codec *codec = codec_dai->codec;
1829 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1830 
1831 	switch (freq) {
1832 	case 19200000:
1833 	case 26000000:
1834 	case 38400000:
1835 		break;
1836 	default:
1837 		dev_err(codec->dev, "Unsupported HFCLKIN: %u\n", freq);
1838 		return -EINVAL;
1839 	}
1840 
1841 	if ((freq / 1000) != twl4030->sysclk) {
1842 		dev_err(codec->dev,
1843 			"Mismatch in HFCLKIN: %u (configured: %u)\n",
1844 			freq, twl4030->sysclk * 1000);
1845 		return -EINVAL;
1846 	}
1847 
1848 	return 0;
1849 }
1850 
1851 static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
1852 {
1853 	struct snd_soc_codec *codec = codec_dai->codec;
1854 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1855 	u8 old_format, format;
1856 
1857 	/* get format */
1858 	old_format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1859 	format = old_format;
1860 
1861 	/* set master/slave audio interface */
1862 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1863 	case SND_SOC_DAIFMT_CBM_CFM:
1864 		format &= ~(TWL4030_AIF_SLAVE_EN);
1865 		format &= ~(TWL4030_CLK256FS_EN);
1866 		break;
1867 	case SND_SOC_DAIFMT_CBS_CFS:
1868 		format |= TWL4030_AIF_SLAVE_EN;
1869 		format |= TWL4030_CLK256FS_EN;
1870 		break;
1871 	default:
1872 		return -EINVAL;
1873 	}
1874 
1875 	/* interface format */
1876 	format &= ~TWL4030_AIF_FORMAT;
1877 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1878 	case SND_SOC_DAIFMT_I2S:
1879 		format |= TWL4030_AIF_FORMAT_CODEC;
1880 		break;
1881 	case SND_SOC_DAIFMT_DSP_A:
1882 		format |= TWL4030_AIF_FORMAT_TDM;
1883 		break;
1884 	default:
1885 		return -EINVAL;
1886 	}
1887 
1888 	if (format != old_format) {
1889 		if (twl4030->codec_powered) {
1890 			/*
1891 			 * If the codec is powered, than we need to toggle the
1892 			 * codec power.
1893 			 */
1894 			twl4030_codec_enable(codec, 0);
1895 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1896 			twl4030_codec_enable(codec, 1);
1897 		} else {
1898 			twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1899 		}
1900 	}
1901 
1902 	return 0;
1903 }
1904 
1905 static int twl4030_set_tristate(struct snd_soc_dai *dai, int tristate)
1906 {
1907 	struct snd_soc_codec *codec = dai->codec;
1908 	u8 reg = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
1909 
1910 	if (tristate)
1911 		reg |= TWL4030_AIF_TRI_EN;
1912 	else
1913 		reg &= ~TWL4030_AIF_TRI_EN;
1914 
1915 	return twl4030_write(codec, TWL4030_REG_AUDIO_IF, reg);
1916 }
1917 
1918 /* In case of voice mode, the RX1 L(VRX) for downlink and the TX2 L/R
1919  * (VTXL, VTXR) for uplink has to be enabled/disabled. */
1920 static void twl4030_voice_enable(struct snd_soc_codec *codec, int direction,
1921 				 int enable)
1922 {
1923 	u8 reg, mask;
1924 
1925 	reg = twl4030_read(codec, TWL4030_REG_OPTION);
1926 
1927 	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1928 		mask = TWL4030_ARXL1_VRX_EN;
1929 	else
1930 		mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1931 
1932 	if (enable)
1933 		reg |= mask;
1934 	else
1935 		reg &= ~mask;
1936 
1937 	twl4030_write(codec, TWL4030_REG_OPTION, reg);
1938 }
1939 
1940 static int twl4030_voice_startup(struct snd_pcm_substream *substream,
1941 				 struct snd_soc_dai *dai)
1942 {
1943 	struct snd_soc_codec *codec = dai->codec;
1944 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1945 	u8 mode;
1946 
1947 	/* If the system master clock is not 26MHz, the voice PCM interface is
1948 	 * not available.
1949 	 */
1950 	if (twl4030->sysclk != 26000) {
1951 		dev_err(codec->dev,
1952 			"%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n",
1953 			__func__, twl4030->sysclk);
1954 		return -EINVAL;
1955 	}
1956 
1957 	/* If the codec mode is not option2, the voice PCM interface is not
1958 	 * available.
1959 	 */
1960 	mode = twl4030_read(codec, TWL4030_REG_CODEC_MODE)
1961 		& TWL4030_OPT_MODE;
1962 
1963 	if (mode != TWL4030_OPTION_2) {
1964 		dev_err(codec->dev, "%s: the codec mode is not option2\n",
1965 			__func__);
1966 		return -EINVAL;
1967 	}
1968 
1969 	return 0;
1970 }
1971 
1972 static void twl4030_voice_shutdown(struct snd_pcm_substream *substream,
1973 				   struct snd_soc_dai *dai)
1974 {
1975 	struct snd_soc_codec *codec = dai->codec;
1976 
1977 	/* Enable voice digital filters */
1978 	twl4030_voice_enable(codec, substream->stream, 0);
1979 }
1980 
1981 static int twl4030_voice_hw_params(struct snd_pcm_substream *substream,
1982 				   struct snd_pcm_hw_params *params,
1983 				   struct snd_soc_dai *dai)
1984 {
1985 	struct snd_soc_codec *codec = dai->codec;
1986 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
1987 	u8 old_mode, mode;
1988 
1989 	/* Enable voice digital filters */
1990 	twl4030_voice_enable(codec, substream->stream, 1);
1991 
1992 	/* bit rate */
1993 	old_mode = twl4030_read(codec,
1994 				TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1995 	mode = old_mode;
1996 
1997 	switch (params_rate(params)) {
1998 	case 8000:
1999 		mode &= ~(TWL4030_SEL_16K);
2000 		break;
2001 	case 16000:
2002 		mode |= TWL4030_SEL_16K;
2003 		break;
2004 	default:
2005 		dev_err(codec->dev, "%s: unknown rate %d\n", __func__,
2006 			params_rate(params));
2007 		return -EINVAL;
2008 	}
2009 
2010 	if (mode != old_mode) {
2011 		if (twl4030->codec_powered) {
2012 			/*
2013 			 * If the codec is powered, than we need to toggle the
2014 			 * codec power.
2015 			 */
2016 			twl4030_codec_enable(codec, 0);
2017 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
2018 			twl4030_codec_enable(codec, 1);
2019 		} else {
2020 			twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
2021 		}
2022 	}
2023 
2024 	return 0;
2025 }
2026 
2027 static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
2028 					int clk_id, unsigned int freq, int dir)
2029 {
2030 	struct snd_soc_codec *codec = codec_dai->codec;
2031 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
2032 
2033 	if (freq != 26000000) {
2034 		dev_err(codec->dev,
2035 			"%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n",
2036 			__func__, freq / 1000);
2037 		return -EINVAL;
2038 	}
2039 	if ((freq / 1000) != twl4030->sysclk) {
2040 		dev_err(codec->dev,
2041 			"Mismatch in HFCLKIN: %u (configured: %u)\n",
2042 			freq, twl4030->sysclk * 1000);
2043 		return -EINVAL;
2044 	}
2045 	return 0;
2046 }
2047 
2048 static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
2049 				     unsigned int fmt)
2050 {
2051 	struct snd_soc_codec *codec = codec_dai->codec;
2052 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
2053 	u8 old_format, format;
2054 
2055 	/* get format */
2056 	old_format = twl4030_read(codec, TWL4030_REG_VOICE_IF);
2057 	format = old_format;
2058 
2059 	/* set master/slave audio interface */
2060 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
2061 	case SND_SOC_DAIFMT_CBM_CFM:
2062 		format &= ~(TWL4030_VIF_SLAVE_EN);
2063 		break;
2064 	case SND_SOC_DAIFMT_CBS_CFS:
2065 		format |= TWL4030_VIF_SLAVE_EN;
2066 		break;
2067 	default:
2068 		return -EINVAL;
2069 	}
2070 
2071 	/* clock inversion */
2072 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
2073 	case SND_SOC_DAIFMT_IB_NF:
2074 		format &= ~(TWL4030_VIF_FORMAT);
2075 		break;
2076 	case SND_SOC_DAIFMT_NB_IF:
2077 		format |= TWL4030_VIF_FORMAT;
2078 		break;
2079 	default:
2080 		return -EINVAL;
2081 	}
2082 
2083 	if (format != old_format) {
2084 		if (twl4030->codec_powered) {
2085 			/*
2086 			 * If the codec is powered, than we need to toggle the
2087 			 * codec power.
2088 			 */
2089 			twl4030_codec_enable(codec, 0);
2090 			twl4030_write(codec, TWL4030_REG_VOICE_IF, format);
2091 			twl4030_codec_enable(codec, 1);
2092 		} else {
2093 			twl4030_write(codec, TWL4030_REG_VOICE_IF, format);
2094 		}
2095 	}
2096 
2097 	return 0;
2098 }
2099 
2100 static int twl4030_voice_set_tristate(struct snd_soc_dai *dai, int tristate)
2101 {
2102 	struct snd_soc_codec *codec = dai->codec;
2103 	u8 reg = twl4030_read(codec, TWL4030_REG_VOICE_IF);
2104 
2105 	if (tristate)
2106 		reg |= TWL4030_VIF_TRI_EN;
2107 	else
2108 		reg &= ~TWL4030_VIF_TRI_EN;
2109 
2110 	return twl4030_write(codec, TWL4030_REG_VOICE_IF, reg);
2111 }
2112 
2113 #define TWL4030_RATES	 (SNDRV_PCM_RATE_8000_48000)
2114 #define TWL4030_FORMATS	 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2115 
2116 static const struct snd_soc_dai_ops twl4030_dai_hifi_ops = {
2117 	.startup	= twl4030_startup,
2118 	.shutdown	= twl4030_shutdown,
2119 	.hw_params	= twl4030_hw_params,
2120 	.set_sysclk	= twl4030_set_dai_sysclk,
2121 	.set_fmt	= twl4030_set_dai_fmt,
2122 	.set_tristate	= twl4030_set_tristate,
2123 };
2124 
2125 static const struct snd_soc_dai_ops twl4030_dai_voice_ops = {
2126 	.startup	= twl4030_voice_startup,
2127 	.shutdown	= twl4030_voice_shutdown,
2128 	.hw_params	= twl4030_voice_hw_params,
2129 	.set_sysclk	= twl4030_voice_set_dai_sysclk,
2130 	.set_fmt	= twl4030_voice_set_dai_fmt,
2131 	.set_tristate	= twl4030_voice_set_tristate,
2132 };
2133 
2134 static struct snd_soc_dai_driver twl4030_dai[] = {
2135 {
2136 	.name = "twl4030-hifi",
2137 	.playback = {
2138 		.stream_name = "HiFi Playback",
2139 		.channels_min = 2,
2140 		.channels_max = 4,
2141 		.rates = TWL4030_RATES | SNDRV_PCM_RATE_96000,
2142 		.formats = TWL4030_FORMATS,
2143 		.sig_bits = 24,},
2144 	.capture = {
2145 		.stream_name = "HiFi Capture",
2146 		.channels_min = 2,
2147 		.channels_max = 4,
2148 		.rates = TWL4030_RATES,
2149 		.formats = TWL4030_FORMATS,
2150 		.sig_bits = 24,},
2151 	.ops = &twl4030_dai_hifi_ops,
2152 },
2153 {
2154 	.name = "twl4030-voice",
2155 	.playback = {
2156 		.stream_name = "Voice Playback",
2157 		.channels_min = 1,
2158 		.channels_max = 1,
2159 		.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2160 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
2161 	.capture = {
2162 		.stream_name = "Voice Capture",
2163 		.channels_min = 1,
2164 		.channels_max = 2,
2165 		.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2166 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
2167 	.ops = &twl4030_dai_voice_ops,
2168 },
2169 };
2170 
2171 static int twl4030_soc_probe(struct snd_soc_codec *codec)
2172 {
2173 	struct twl4030_priv *twl4030;
2174 
2175 	twl4030 = devm_kzalloc(codec->dev, sizeof(struct twl4030_priv),
2176 			       GFP_KERNEL);
2177 	if (!twl4030)
2178 		return -ENOMEM;
2179 	snd_soc_codec_set_drvdata(codec, twl4030);
2180 	/* Set the defaults, and power up the codec */
2181 	twl4030->sysclk = twl4030_audio_get_mclk() / 1000;
2182 
2183 	twl4030_init_chip(codec);
2184 
2185 	return 0;
2186 }
2187 
2188 static int twl4030_soc_remove(struct snd_soc_codec *codec)
2189 {
2190 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
2191 	struct twl4030_codec_data *pdata = twl4030->pdata;
2192 
2193 	if (pdata && pdata->hs_extmute && gpio_is_valid(pdata->hs_extmute_gpio))
2194 		gpio_free(pdata->hs_extmute_gpio);
2195 
2196 	return 0;
2197 }
2198 
2199 static struct snd_soc_codec_driver soc_codec_dev_twl4030 = {
2200 	.probe = twl4030_soc_probe,
2201 	.remove = twl4030_soc_remove,
2202 	.read = twl4030_read,
2203 	.write = twl4030_write,
2204 	.set_bias_level = twl4030_set_bias_level,
2205 	.idle_bias_off = true,
2206 
2207 	.controls = twl4030_snd_controls,
2208 	.num_controls = ARRAY_SIZE(twl4030_snd_controls),
2209 	.dapm_widgets = twl4030_dapm_widgets,
2210 	.num_dapm_widgets = ARRAY_SIZE(twl4030_dapm_widgets),
2211 	.dapm_routes = intercon,
2212 	.num_dapm_routes = ARRAY_SIZE(intercon),
2213 };
2214 
2215 static int twl4030_codec_probe(struct platform_device *pdev)
2216 {
2217 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl4030,
2218 				      twl4030_dai, ARRAY_SIZE(twl4030_dai));
2219 }
2220 
2221 static int twl4030_codec_remove(struct platform_device *pdev)
2222 {
2223 	snd_soc_unregister_codec(&pdev->dev);
2224 	return 0;
2225 }
2226 
2227 MODULE_ALIAS("platform:twl4030-codec");
2228 
2229 static struct platform_driver twl4030_codec_driver = {
2230 	.probe		= twl4030_codec_probe,
2231 	.remove		= twl4030_codec_remove,
2232 	.driver		= {
2233 		.name	= "twl4030-codec",
2234 	},
2235 };
2236 
2237 module_platform_driver(twl4030_codec_driver);
2238 
2239 MODULE_DESCRIPTION("ASoC TWL4030 codec driver");
2240 MODULE_AUTHOR("Steve Sakoman");
2241 MODULE_LICENSE("GPL");
2242