xref: /openbmc/linux/sound/soc/codecs/twl4030.c (revision 6726d552)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * ALSA SoC TWL4030 codec driver
4  *
5  * Author:      Steve Sakoman, <steve@sakoman.com>
6  */
7 
8 #include <linux/module.h>
9 #include <linux/moduleparam.h>
10 #include <linux/init.h>
11 #include <linux/delay.h>
12 #include <linux/pm.h>
13 #include <linux/i2c.h>
14 #include <linux/platform_device.h>
15 #include <linux/of.h>
16 #include <linux/of_gpio.h>
17 #include <linux/mfd/twl.h>
18 #include <linux/slab.h>
19 #include <linux/gpio.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
24 #include <sound/initval.h>
25 #include <sound/tlv.h>
26 
27 /* Register descriptions are here */
28 #include <linux/mfd/twl4030-audio.h>
29 
30 /* TWL4030 PMBR1 Register */
31 #define TWL4030_PMBR1_REG		0x0D
32 /* TWL4030 PMBR1 Register GPIO6 mux bits */
33 #define TWL4030_GPIO6_PWM0_MUTE(value)	((value & 0x03) << 2)
34 
35 #define TWL4030_CACHEREGNUM	(TWL4030_REG_MISC_SET_2 + 1)
36 
37 struct twl4030_board_params {
38 	unsigned int digimic_delay; /* in ms */
39 	unsigned int ramp_delay_value;
40 	unsigned int offset_cncl_path;
41 	unsigned int hs_extmute:1;
42 	int hs_extmute_gpio;
43 };
44 
45 /* codec private data */
46 struct twl4030_priv {
47 	unsigned int codec_powered;
48 
49 	/* reference counts of AIF/APLL users */
50 	unsigned int apll_enabled;
51 
52 	struct snd_pcm_substream *master_substream;
53 	struct snd_pcm_substream *slave_substream;
54 
55 	unsigned int configured;
56 	unsigned int rate;
57 	unsigned int sample_bits;
58 	unsigned int channels;
59 
60 	unsigned int sysclk;
61 
62 	/* Output (with associated amp) states */
63 	u8 hsl_enabled, hsr_enabled;
64 	u8 earpiece_enabled;
65 	u8 predrivel_enabled, predriver_enabled;
66 	u8 carkitl_enabled, carkitr_enabled;
67 	u8 ctl_cache[TWL4030_REG_PRECKR_CTL - TWL4030_REG_EAR_CTL + 1];
68 
69 	struct twl4030_board_params *board_params;
70 };
71 
72 static void tw4030_init_ctl_cache(struct twl4030_priv *twl4030)
73 {
74 	int i;
75 	u8 byte;
76 
77 	for (i = TWL4030_REG_EAR_CTL; i <= TWL4030_REG_PRECKR_CTL; i++) {
78 		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, i);
79 		twl4030->ctl_cache[i - TWL4030_REG_EAR_CTL] = byte;
80 	}
81 }
82 
83 static unsigned int twl4030_read(struct snd_soc_component *component, unsigned int reg)
84 {
85 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
86 	u8 value = 0;
87 
88 	if (reg >= TWL4030_CACHEREGNUM)
89 		return -EIO;
90 
91 	switch (reg) {
92 	case TWL4030_REG_EAR_CTL:
93 	case TWL4030_REG_PREDL_CTL:
94 	case TWL4030_REG_PREDR_CTL:
95 	case TWL4030_REG_PRECKL_CTL:
96 	case TWL4030_REG_PRECKR_CTL:
97 	case TWL4030_REG_HS_GAIN_SET:
98 		value = twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL];
99 		break;
100 	default:
101 		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &value, reg);
102 		break;
103 	}
104 
105 	return value;
106 }
107 
108 static bool twl4030_can_write_to_chip(struct twl4030_priv *twl4030,
109 				      unsigned int reg)
110 {
111 	bool write_to_reg = false;
112 
113 	/* Decide if the given register can be written */
114 	switch (reg) {
115 	case TWL4030_REG_EAR_CTL:
116 		if (twl4030->earpiece_enabled)
117 			write_to_reg = true;
118 		break;
119 	case TWL4030_REG_PREDL_CTL:
120 		if (twl4030->predrivel_enabled)
121 			write_to_reg = true;
122 		break;
123 	case TWL4030_REG_PREDR_CTL:
124 		if (twl4030->predriver_enabled)
125 			write_to_reg = true;
126 		break;
127 	case TWL4030_REG_PRECKL_CTL:
128 		if (twl4030->carkitl_enabled)
129 			write_to_reg = true;
130 		break;
131 	case TWL4030_REG_PRECKR_CTL:
132 		if (twl4030->carkitr_enabled)
133 			write_to_reg = true;
134 		break;
135 	case TWL4030_REG_HS_GAIN_SET:
136 		if (twl4030->hsl_enabled || twl4030->hsr_enabled)
137 			write_to_reg = true;
138 		break;
139 	default:
140 		/* All other register can be written */
141 		write_to_reg = true;
142 		break;
143 	}
144 
145 	return write_to_reg;
146 }
147 
148 static int twl4030_write(struct snd_soc_component *component, unsigned int reg,
149 			 unsigned int value)
150 {
151 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
152 
153 	/* Update the ctl cache */
154 	switch (reg) {
155 	case TWL4030_REG_EAR_CTL:
156 	case TWL4030_REG_PREDL_CTL:
157 	case TWL4030_REG_PREDR_CTL:
158 	case TWL4030_REG_PRECKL_CTL:
159 	case TWL4030_REG_PRECKR_CTL:
160 	case TWL4030_REG_HS_GAIN_SET:
161 		twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL] = value;
162 		break;
163 	default:
164 		break;
165 	}
166 
167 	if (twl4030_can_write_to_chip(twl4030, reg))
168 		return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg);
169 
170 	return 0;
171 }
172 
173 static inline void twl4030_wait_ms(int time)
174 {
175 	if (time < 60) {
176 		time *= 1000;
177 		usleep_range(time, time + 500);
178 	} else {
179 		msleep(time);
180 	}
181 }
182 
183 static void twl4030_codec_enable(struct snd_soc_component *component, int enable)
184 {
185 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
186 	int mode;
187 
188 	if (enable == twl4030->codec_powered)
189 		return;
190 
191 	if (enable)
192 		mode = twl4030_audio_enable_resource(TWL4030_AUDIO_RES_POWER);
193 	else
194 		mode = twl4030_audio_disable_resource(TWL4030_AUDIO_RES_POWER);
195 
196 	if (mode >= 0)
197 		twl4030->codec_powered = enable;
198 
199 	/* REVISIT: this delay is present in TI sample drivers */
200 	/* but there seems to be no TRM requirement for it     */
201 	udelay(10);
202 }
203 
204 static void
205 twl4030_get_board_param_values(struct twl4030_board_params *board_params,
206 			       struct device_node *node)
207 {
208 	int value;
209 
210 	of_property_read_u32(node, "ti,digimic_delay", &board_params->digimic_delay);
211 	of_property_read_u32(node, "ti,ramp_delay_value", &board_params->ramp_delay_value);
212 	of_property_read_u32(node, "ti,offset_cncl_path", &board_params->offset_cncl_path);
213 	if (!of_property_read_u32(node, "ti,hs_extmute", &value))
214 		board_params->hs_extmute = value;
215 
216 	board_params->hs_extmute_gpio = of_get_named_gpio(node, "ti,hs_extmute_gpio", 0);
217 	if (gpio_is_valid(board_params->hs_extmute_gpio))
218 		board_params->hs_extmute = 1;
219 }
220 
221 static struct twl4030_board_params*
222 twl4030_get_board_params(struct snd_soc_component *component)
223 {
224 	struct twl4030_board_params *board_params = NULL;
225 	struct device_node *twl4030_codec_node = NULL;
226 
227 	twl4030_codec_node = of_get_child_by_name(component->dev->parent->of_node,
228 						  "codec");
229 
230 	if (twl4030_codec_node) {
231 		board_params = devm_kzalloc(component->dev,
232 					    sizeof(struct twl4030_board_params),
233 					    GFP_KERNEL);
234 		if (!board_params) {
235 			of_node_put(twl4030_codec_node);
236 			return NULL;
237 		}
238 		twl4030_get_board_param_values(board_params, twl4030_codec_node);
239 		of_node_put(twl4030_codec_node);
240 	}
241 
242 	return board_params;
243 }
244 
245 static void twl4030_init_chip(struct snd_soc_component *component)
246 {
247 	struct twl4030_board_params *board_params;
248 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
249 	u8 reg, byte;
250 	int i = 0;
251 
252 	board_params = twl4030_get_board_params(component);
253 
254 	if (board_params && board_params->hs_extmute) {
255 		if (gpio_is_valid(board_params->hs_extmute_gpio)) {
256 			int ret;
257 
258 			if (!board_params->hs_extmute_gpio)
259 				dev_warn(component->dev,
260 					"Extmute GPIO is 0 is this correct?\n");
261 
262 			ret = gpio_request_one(board_params->hs_extmute_gpio,
263 					       GPIOF_OUT_INIT_LOW,
264 					       "hs_extmute");
265 			if (ret) {
266 				dev_err(component->dev,
267 					"Failed to get hs_extmute GPIO\n");
268 				board_params->hs_extmute_gpio = -1;
269 			}
270 		} else {
271 			u8 pin_mux;
272 
273 			/* Set TWL4030 GPIO6 as EXTMUTE signal */
274 			twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux,
275 					TWL4030_PMBR1_REG);
276 			pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03);
277 			pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02);
278 			twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux,
279 					 TWL4030_PMBR1_REG);
280 		}
281 	}
282 
283 	/* Initialize the local ctl register cache */
284 	tw4030_init_ctl_cache(twl4030);
285 
286 	/* anti-pop when changing analog gain */
287 	reg = twl4030_read(component, TWL4030_REG_MISC_SET_1);
288 	twl4030_write(component, TWL4030_REG_MISC_SET_1,
289 		      reg | TWL4030_SMOOTH_ANAVOL_EN);
290 
291 	twl4030_write(component, TWL4030_REG_OPTION,
292 		      TWL4030_ATXL1_EN | TWL4030_ATXR1_EN |
293 		      TWL4030_ARXL2_EN | TWL4030_ARXR2_EN);
294 
295 	/* REG_ARXR2_APGA_CTL reset according to the TRM: 0dB, DA_EN */
296 	twl4030_write(component, TWL4030_REG_ARXR2_APGA_CTL, 0x32);
297 
298 	/* Machine dependent setup */
299 	if (!board_params)
300 		return;
301 
302 	twl4030->board_params = board_params;
303 
304 	reg = twl4030_read(component, TWL4030_REG_HS_POPN_SET);
305 	reg &= ~TWL4030_RAMP_DELAY;
306 	reg |= (board_params->ramp_delay_value << 2);
307 	twl4030_write(component, TWL4030_REG_HS_POPN_SET, reg);
308 
309 	/* initiate offset cancellation */
310 	twl4030_codec_enable(component, 1);
311 
312 	reg = twl4030_read(component, TWL4030_REG_ANAMICL);
313 	reg &= ~TWL4030_OFFSET_CNCL_SEL;
314 	reg |= board_params->offset_cncl_path;
315 	twl4030_write(component, TWL4030_REG_ANAMICL,
316 		      reg | TWL4030_CNCL_OFFSET_START);
317 
318 	/*
319 	 * Wait for offset cancellation to complete.
320 	 * Since this takes a while, do not slam the i2c.
321 	 * Start polling the status after ~20ms.
322 	 */
323 	msleep(20);
324 	do {
325 		usleep_range(1000, 2000);
326 		twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, true);
327 		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte,
328 				TWL4030_REG_ANAMICL);
329 		twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, false);
330 	} while ((i++ < 100) &&
331 		 ((byte & TWL4030_CNCL_OFFSET_START) ==
332 		  TWL4030_CNCL_OFFSET_START));
333 
334 	twl4030_codec_enable(component, 0);
335 }
336 
337 static void twl4030_apll_enable(struct snd_soc_component *component, int enable)
338 {
339 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
340 
341 	if (enable) {
342 		twl4030->apll_enabled++;
343 		if (twl4030->apll_enabled == 1)
344 			twl4030_audio_enable_resource(
345 							TWL4030_AUDIO_RES_APLL);
346 	} else {
347 		twl4030->apll_enabled--;
348 		if (!twl4030->apll_enabled)
349 			twl4030_audio_disable_resource(
350 							TWL4030_AUDIO_RES_APLL);
351 	}
352 }
353 
354 /* Earpiece */
355 static const struct snd_kcontrol_new twl4030_dapm_earpiece_controls[] = {
356 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_EAR_CTL, 0, 1, 0),
357 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_EAR_CTL, 1, 1, 0),
358 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_EAR_CTL, 2, 1, 0),
359 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_EAR_CTL, 3, 1, 0),
360 };
361 
362 /* PreDrive Left */
363 static const struct snd_kcontrol_new twl4030_dapm_predrivel_controls[] = {
364 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDL_CTL, 0, 1, 0),
365 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PREDL_CTL, 1, 1, 0),
366 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDL_CTL, 2, 1, 0),
367 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDL_CTL, 3, 1, 0),
368 };
369 
370 /* PreDrive Right */
371 static const struct snd_kcontrol_new twl4030_dapm_predriver_controls[] = {
372 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDR_CTL, 0, 1, 0),
373 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PREDR_CTL, 1, 1, 0),
374 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDR_CTL, 2, 1, 0),
375 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDR_CTL, 3, 1, 0),
376 };
377 
378 /* Headset Left */
379 static const struct snd_kcontrol_new twl4030_dapm_hsol_controls[] = {
380 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 0, 1, 0),
381 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_HS_SEL, 1, 1, 0),
382 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_HS_SEL, 2, 1, 0),
383 };
384 
385 /* Headset Right */
386 static const struct snd_kcontrol_new twl4030_dapm_hsor_controls[] = {
387 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 3, 1, 0),
388 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_HS_SEL, 4, 1, 0),
389 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_HS_SEL, 5, 1, 0),
390 };
391 
392 /* Carkit Left */
393 static const struct snd_kcontrol_new twl4030_dapm_carkitl_controls[] = {
394 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKL_CTL, 0, 1, 0),
395 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PRECKL_CTL, 1, 1, 0),
396 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PRECKL_CTL, 2, 1, 0),
397 };
398 
399 /* Carkit Right */
400 static const struct snd_kcontrol_new twl4030_dapm_carkitr_controls[] = {
401 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKR_CTL, 0, 1, 0),
402 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PRECKR_CTL, 1, 1, 0),
403 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PRECKR_CTL, 2, 1, 0),
404 };
405 
406 /* Handsfree Left */
407 static const char *twl4030_handsfreel_texts[] =
408 		{"Voice", "AudioL1", "AudioL2", "AudioR2"};
409 
410 static SOC_ENUM_SINGLE_DECL(twl4030_handsfreel_enum,
411 			    TWL4030_REG_HFL_CTL, 0,
412 			    twl4030_handsfreel_texts);
413 
414 static const struct snd_kcontrol_new twl4030_dapm_handsfreel_control =
415 SOC_DAPM_ENUM("Route", twl4030_handsfreel_enum);
416 
417 /* Handsfree Left virtual mute */
418 static const struct snd_kcontrol_new twl4030_dapm_handsfreelmute_control =
419 	SOC_DAPM_SINGLE_VIRT("Switch", 1);
420 
421 /* Handsfree Right */
422 static const char *twl4030_handsfreer_texts[] =
423 		{"Voice", "AudioR1", "AudioR2", "AudioL2"};
424 
425 static SOC_ENUM_SINGLE_DECL(twl4030_handsfreer_enum,
426 			    TWL4030_REG_HFR_CTL, 0,
427 			    twl4030_handsfreer_texts);
428 
429 static const struct snd_kcontrol_new twl4030_dapm_handsfreer_control =
430 SOC_DAPM_ENUM("Route", twl4030_handsfreer_enum);
431 
432 /* Handsfree Right virtual mute */
433 static const struct snd_kcontrol_new twl4030_dapm_handsfreermute_control =
434 	SOC_DAPM_SINGLE_VIRT("Switch", 1);
435 
436 /* Vibra */
437 /* Vibra audio path selection */
438 static const char *twl4030_vibra_texts[] =
439 		{"AudioL1", "AudioR1", "AudioL2", "AudioR2"};
440 
441 static SOC_ENUM_SINGLE_DECL(twl4030_vibra_enum,
442 			    TWL4030_REG_VIBRA_CTL, 2,
443 			    twl4030_vibra_texts);
444 
445 static const struct snd_kcontrol_new twl4030_dapm_vibra_control =
446 SOC_DAPM_ENUM("Route", twl4030_vibra_enum);
447 
448 /* Vibra path selection: local vibrator (PWM) or audio driven */
449 static const char *twl4030_vibrapath_texts[] =
450 		{"Local vibrator", "Audio"};
451 
452 static SOC_ENUM_SINGLE_DECL(twl4030_vibrapath_enum,
453 			    TWL4030_REG_VIBRA_CTL, 4,
454 			    twl4030_vibrapath_texts);
455 
456 static const struct snd_kcontrol_new twl4030_dapm_vibrapath_control =
457 SOC_DAPM_ENUM("Route", twl4030_vibrapath_enum);
458 
459 /* Left analog microphone selection */
460 static const struct snd_kcontrol_new twl4030_dapm_analoglmic_controls[] = {
461 	SOC_DAPM_SINGLE("Main Mic Capture Switch",
462 			TWL4030_REG_ANAMICL, 0, 1, 0),
463 	SOC_DAPM_SINGLE("Headset Mic Capture Switch",
464 			TWL4030_REG_ANAMICL, 1, 1, 0),
465 	SOC_DAPM_SINGLE("AUXL Capture Switch",
466 			TWL4030_REG_ANAMICL, 2, 1, 0),
467 	SOC_DAPM_SINGLE("Carkit Mic Capture Switch",
468 			TWL4030_REG_ANAMICL, 3, 1, 0),
469 };
470 
471 /* Right analog microphone selection */
472 static const struct snd_kcontrol_new twl4030_dapm_analogrmic_controls[] = {
473 	SOC_DAPM_SINGLE("Sub Mic Capture Switch", TWL4030_REG_ANAMICR, 0, 1, 0),
474 	SOC_DAPM_SINGLE("AUXR Capture Switch", TWL4030_REG_ANAMICR, 2, 1, 0),
475 };
476 
477 /* TX1 L/R Analog/Digital microphone selection */
478 static const char *twl4030_micpathtx1_texts[] =
479 		{"Analog", "Digimic0"};
480 
481 static SOC_ENUM_SINGLE_DECL(twl4030_micpathtx1_enum,
482 			    TWL4030_REG_ADCMICSEL, 0,
483 			    twl4030_micpathtx1_texts);
484 
485 static const struct snd_kcontrol_new twl4030_dapm_micpathtx1_control =
486 SOC_DAPM_ENUM("Route", twl4030_micpathtx1_enum);
487 
488 /* TX2 L/R Analog/Digital microphone selection */
489 static const char *twl4030_micpathtx2_texts[] =
490 		{"Analog", "Digimic1"};
491 
492 static SOC_ENUM_SINGLE_DECL(twl4030_micpathtx2_enum,
493 			    TWL4030_REG_ADCMICSEL, 2,
494 			    twl4030_micpathtx2_texts);
495 
496 static const struct snd_kcontrol_new twl4030_dapm_micpathtx2_control =
497 SOC_DAPM_ENUM("Route", twl4030_micpathtx2_enum);
498 
499 /* Analog bypass for AudioR1 */
500 static const struct snd_kcontrol_new twl4030_dapm_abypassr1_control =
501 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR1_APGA_CTL, 2, 1, 0);
502 
503 /* Analog bypass for AudioL1 */
504 static const struct snd_kcontrol_new twl4030_dapm_abypassl1_control =
505 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL1_APGA_CTL, 2, 1, 0);
506 
507 /* Analog bypass for AudioR2 */
508 static const struct snd_kcontrol_new twl4030_dapm_abypassr2_control =
509 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR2_APGA_CTL, 2, 1, 0);
510 
511 /* Analog bypass for AudioL2 */
512 static const struct snd_kcontrol_new twl4030_dapm_abypassl2_control =
513 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL2_APGA_CTL, 2, 1, 0);
514 
515 /* Analog bypass for Voice */
516 static const struct snd_kcontrol_new twl4030_dapm_abypassv_control =
517 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_VDL_APGA_CTL, 2, 1, 0);
518 
519 /* Digital bypass gain, mute instead of -30dB */
520 static const DECLARE_TLV_DB_RANGE(twl4030_dapm_dbypass_tlv,
521 	0, 1, TLV_DB_SCALE_ITEM(-3000, 600, 1),
522 	2, 3, TLV_DB_SCALE_ITEM(-2400, 0, 0),
523 	4, 7, TLV_DB_SCALE_ITEM(-1800, 600, 0)
524 );
525 
526 /* Digital bypass left (TX1L -> RX2L) */
527 static const struct snd_kcontrol_new twl4030_dapm_dbypassl_control =
528 	SOC_DAPM_SINGLE_TLV("Volume",
529 			TWL4030_REG_ATX2ARXPGA, 3, 7, 0,
530 			twl4030_dapm_dbypass_tlv);
531 
532 /* Digital bypass right (TX1R -> RX2R) */
533 static const struct snd_kcontrol_new twl4030_dapm_dbypassr_control =
534 	SOC_DAPM_SINGLE_TLV("Volume",
535 			TWL4030_REG_ATX2ARXPGA, 0, 7, 0,
536 			twl4030_dapm_dbypass_tlv);
537 
538 /*
539  * Voice Sidetone GAIN volume control:
540  * from -51 to -10 dB in 1 dB steps (mute instead of -51 dB)
541  */
542 static DECLARE_TLV_DB_SCALE(twl4030_dapm_dbypassv_tlv, -5100, 100, 1);
543 
544 /* Digital bypass voice: sidetone (VUL -> VDL)*/
545 static const struct snd_kcontrol_new twl4030_dapm_dbypassv_control =
546 	SOC_DAPM_SINGLE_TLV("Volume",
547 			TWL4030_REG_VSTPGA, 0, 0x29, 0,
548 			twl4030_dapm_dbypassv_tlv);
549 
550 /*
551  * Output PGA builder:
552  * Handle the muting and unmuting of the given output (turning off the
553  * amplifier associated with the output pin)
554  * On mute bypass the reg_cache and write 0 to the register
555  * On unmute: restore the register content from the reg_cache
556  * Outputs handled in this way:  Earpiece, PreDrivL/R, CarkitL/R
557  */
558 #define TWL4030_OUTPUT_PGA(pin_name, reg, mask)				\
559 static int pin_name##pga_event(struct snd_soc_dapm_widget *w,		\
560 			       struct snd_kcontrol *kcontrol, int event) \
561 {									\
562 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);	\
563 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component); \
564 									\
565 	switch (event) {						\
566 	case SND_SOC_DAPM_POST_PMU:					\
567 		twl4030->pin_name##_enabled = 1;			\
568 		twl4030_write(component, reg, twl4030_read(component, reg));	\
569 		break;							\
570 	case SND_SOC_DAPM_POST_PMD:					\
571 		twl4030->pin_name##_enabled = 0;			\
572 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, 0, reg);	\
573 		break;							\
574 	}								\
575 	return 0;							\
576 }
577 
578 TWL4030_OUTPUT_PGA(earpiece, TWL4030_REG_EAR_CTL, TWL4030_EAR_GAIN);
579 TWL4030_OUTPUT_PGA(predrivel, TWL4030_REG_PREDL_CTL, TWL4030_PREDL_GAIN);
580 TWL4030_OUTPUT_PGA(predriver, TWL4030_REG_PREDR_CTL, TWL4030_PREDR_GAIN);
581 TWL4030_OUTPUT_PGA(carkitl, TWL4030_REG_PRECKL_CTL, TWL4030_PRECKL_GAIN);
582 TWL4030_OUTPUT_PGA(carkitr, TWL4030_REG_PRECKR_CTL, TWL4030_PRECKR_GAIN);
583 
584 static void handsfree_ramp(struct snd_soc_component *component, int reg, int ramp)
585 {
586 	unsigned char hs_ctl;
587 
588 	hs_ctl = twl4030_read(component, reg);
589 
590 	if (ramp) {
591 		/* HF ramp-up */
592 		hs_ctl |= TWL4030_HF_CTL_REF_EN;
593 		twl4030_write(component, reg, hs_ctl);
594 		udelay(10);
595 		hs_ctl |= TWL4030_HF_CTL_RAMP_EN;
596 		twl4030_write(component, reg, hs_ctl);
597 		udelay(40);
598 		hs_ctl |= TWL4030_HF_CTL_LOOP_EN;
599 		hs_ctl |= TWL4030_HF_CTL_HB_EN;
600 		twl4030_write(component, reg, hs_ctl);
601 	} else {
602 		/* HF ramp-down */
603 		hs_ctl &= ~TWL4030_HF_CTL_LOOP_EN;
604 		hs_ctl &= ~TWL4030_HF_CTL_HB_EN;
605 		twl4030_write(component, reg, hs_ctl);
606 		hs_ctl &= ~TWL4030_HF_CTL_RAMP_EN;
607 		twl4030_write(component, reg, hs_ctl);
608 		udelay(40);
609 		hs_ctl &= ~TWL4030_HF_CTL_REF_EN;
610 		twl4030_write(component, reg, hs_ctl);
611 	}
612 }
613 
614 static int handsfreelpga_event(struct snd_soc_dapm_widget *w,
615 			       struct snd_kcontrol *kcontrol, int event)
616 {
617 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
618 
619 	switch (event) {
620 	case SND_SOC_DAPM_POST_PMU:
621 		handsfree_ramp(component, TWL4030_REG_HFL_CTL, 1);
622 		break;
623 	case SND_SOC_DAPM_POST_PMD:
624 		handsfree_ramp(component, TWL4030_REG_HFL_CTL, 0);
625 		break;
626 	}
627 	return 0;
628 }
629 
630 static int handsfreerpga_event(struct snd_soc_dapm_widget *w,
631 			       struct snd_kcontrol *kcontrol, int event)
632 {
633 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
634 
635 	switch (event) {
636 	case SND_SOC_DAPM_POST_PMU:
637 		handsfree_ramp(component, TWL4030_REG_HFR_CTL, 1);
638 		break;
639 	case SND_SOC_DAPM_POST_PMD:
640 		handsfree_ramp(component, TWL4030_REG_HFR_CTL, 0);
641 		break;
642 	}
643 	return 0;
644 }
645 
646 static int vibramux_event(struct snd_soc_dapm_widget *w,
647 			  struct snd_kcontrol *kcontrol, int event)
648 {
649 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
650 
651 	twl4030_write(component, TWL4030_REG_VIBRA_SET, 0xff);
652 	return 0;
653 }
654 
655 static int apll_event(struct snd_soc_dapm_widget *w,
656 		      struct snd_kcontrol *kcontrol, int event)
657 {
658 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
659 
660 	switch (event) {
661 	case SND_SOC_DAPM_PRE_PMU:
662 		twl4030_apll_enable(component, 1);
663 		break;
664 	case SND_SOC_DAPM_POST_PMD:
665 		twl4030_apll_enable(component, 0);
666 		break;
667 	}
668 	return 0;
669 }
670 
671 static int aif_event(struct snd_soc_dapm_widget *w,
672 		     struct snd_kcontrol *kcontrol, int event)
673 {
674 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
675 	u8 audio_if;
676 
677 	audio_if = twl4030_read(component, TWL4030_REG_AUDIO_IF);
678 	switch (event) {
679 	case SND_SOC_DAPM_PRE_PMU:
680 		/* Enable AIF */
681 		/* enable the PLL before we use it to clock the DAI */
682 		twl4030_apll_enable(component, 1);
683 
684 		twl4030_write(component, TWL4030_REG_AUDIO_IF,
685 			      audio_if | TWL4030_AIF_EN);
686 		break;
687 	case SND_SOC_DAPM_POST_PMD:
688 		/* disable the DAI before we stop it's source PLL */
689 		twl4030_write(component, TWL4030_REG_AUDIO_IF,
690 			      audio_if &  ~TWL4030_AIF_EN);
691 		twl4030_apll_enable(component, 0);
692 		break;
693 	}
694 	return 0;
695 }
696 
697 static void headset_ramp(struct snd_soc_component *component, int ramp)
698 {
699 	unsigned char hs_gain, hs_pop;
700 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
701 	struct twl4030_board_params *board_params = twl4030->board_params;
702 	/* Base values for ramp delay calculation: 2^19 - 2^26 */
703 	unsigned int ramp_base[] = {524288, 1048576, 2097152, 4194304,
704 				    8388608, 16777216, 33554432, 67108864};
705 	unsigned int delay;
706 
707 	hs_gain = twl4030_read(component, TWL4030_REG_HS_GAIN_SET);
708 	hs_pop = twl4030_read(component, TWL4030_REG_HS_POPN_SET);
709 	delay = (ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] /
710 		twl4030->sysclk) + 1;
711 
712 	/* Enable external mute control, this dramatically reduces
713 	 * the pop-noise */
714 	if (board_params && board_params->hs_extmute) {
715 		if (gpio_is_valid(board_params->hs_extmute_gpio)) {
716 			gpio_set_value(board_params->hs_extmute_gpio, 1);
717 		} else {
718 			hs_pop |= TWL4030_EXTMUTE;
719 			twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
720 		}
721 	}
722 
723 	if (ramp) {
724 		/* Headset ramp-up according to the TRM */
725 		hs_pop |= TWL4030_VMID_EN;
726 		twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
727 		/* Actually write to the register */
728 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain,
729 				 TWL4030_REG_HS_GAIN_SET);
730 		hs_pop |= TWL4030_RAMP_EN;
731 		twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
732 		/* Wait ramp delay time + 1, so the VMID can settle */
733 		twl4030_wait_ms(delay);
734 	} else {
735 		/* Headset ramp-down _not_ according to
736 		 * the TRM, but in a way that it is working */
737 		hs_pop &= ~TWL4030_RAMP_EN;
738 		twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
739 		/* Wait ramp delay time + 1, so the VMID can settle */
740 		twl4030_wait_ms(delay);
741 		/* Bypass the reg_cache to mute the headset */
742 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain & (~0x0f),
743 				 TWL4030_REG_HS_GAIN_SET);
744 
745 		hs_pop &= ~TWL4030_VMID_EN;
746 		twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
747 	}
748 
749 	/* Disable external mute */
750 	if (board_params && board_params->hs_extmute) {
751 		if (gpio_is_valid(board_params->hs_extmute_gpio)) {
752 			gpio_set_value(board_params->hs_extmute_gpio, 0);
753 		} else {
754 			hs_pop &= ~TWL4030_EXTMUTE;
755 			twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
756 		}
757 	}
758 }
759 
760 static int headsetlpga_event(struct snd_soc_dapm_widget *w,
761 			     struct snd_kcontrol *kcontrol, int event)
762 {
763 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
764 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
765 
766 	switch (event) {
767 	case SND_SOC_DAPM_POST_PMU:
768 		/* Do the ramp-up only once */
769 		if (!twl4030->hsr_enabled)
770 			headset_ramp(component, 1);
771 
772 		twl4030->hsl_enabled = 1;
773 		break;
774 	case SND_SOC_DAPM_POST_PMD:
775 		/* Do the ramp-down only if both headsetL/R is disabled */
776 		if (!twl4030->hsr_enabled)
777 			headset_ramp(component, 0);
778 
779 		twl4030->hsl_enabled = 0;
780 		break;
781 	}
782 	return 0;
783 }
784 
785 static int headsetrpga_event(struct snd_soc_dapm_widget *w,
786 			     struct snd_kcontrol *kcontrol, int event)
787 {
788 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
789 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
790 
791 	switch (event) {
792 	case SND_SOC_DAPM_POST_PMU:
793 		/* Do the ramp-up only once */
794 		if (!twl4030->hsl_enabled)
795 			headset_ramp(component, 1);
796 
797 		twl4030->hsr_enabled = 1;
798 		break;
799 	case SND_SOC_DAPM_POST_PMD:
800 		/* Do the ramp-down only if both headsetL/R is disabled */
801 		if (!twl4030->hsl_enabled)
802 			headset_ramp(component, 0);
803 
804 		twl4030->hsr_enabled = 0;
805 		break;
806 	}
807 	return 0;
808 }
809 
810 static int digimic_event(struct snd_soc_dapm_widget *w,
811 			 struct snd_kcontrol *kcontrol, int event)
812 {
813 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
814 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
815 	struct twl4030_board_params *board_params = twl4030->board_params;
816 
817 	if (board_params && board_params->digimic_delay)
818 		twl4030_wait_ms(board_params->digimic_delay);
819 	return 0;
820 }
821 
822 /*
823  * Some of the gain controls in TWL (mostly those which are associated with
824  * the outputs) are implemented in an interesting way:
825  * 0x0 : Power down (mute)
826  * 0x1 : 6dB
827  * 0x2 : 0 dB
828  * 0x3 : -6 dB
829  * Inverting not going to help with these.
830  * Custom volsw and volsw_2r get/put functions to handle these gain bits.
831  */
832 static int snd_soc_get_volsw_twl4030(struct snd_kcontrol *kcontrol,
833 				     struct snd_ctl_elem_value *ucontrol)
834 {
835 	struct soc_mixer_control *mc =
836 		(struct soc_mixer_control *)kcontrol->private_value;
837 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
838 	unsigned int reg = mc->reg;
839 	unsigned int shift = mc->shift;
840 	unsigned int rshift = mc->rshift;
841 	int max = mc->max;
842 	int mask = (1 << fls(max)) - 1;
843 
844 	ucontrol->value.integer.value[0] =
845 		(twl4030_read(component, reg) >> shift) & mask;
846 	if (ucontrol->value.integer.value[0])
847 		ucontrol->value.integer.value[0] =
848 			max + 1 - ucontrol->value.integer.value[0];
849 
850 	if (shift != rshift) {
851 		ucontrol->value.integer.value[1] =
852 			(twl4030_read(component, reg) >> rshift) & mask;
853 		if (ucontrol->value.integer.value[1])
854 			ucontrol->value.integer.value[1] =
855 				max + 1 - ucontrol->value.integer.value[1];
856 	}
857 
858 	return 0;
859 }
860 
861 static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol,
862 				     struct snd_ctl_elem_value *ucontrol)
863 {
864 	struct soc_mixer_control *mc =
865 		(struct soc_mixer_control *)kcontrol->private_value;
866 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
867 	unsigned int reg = mc->reg;
868 	unsigned int shift = mc->shift;
869 	unsigned int rshift = mc->rshift;
870 	int max = mc->max;
871 	int mask = (1 << fls(max)) - 1;
872 	unsigned short val, val2, val_mask;
873 
874 	val = (ucontrol->value.integer.value[0] & mask);
875 
876 	val_mask = mask << shift;
877 	if (val)
878 		val = max + 1 - val;
879 	val = val << shift;
880 	if (shift != rshift) {
881 		val2 = (ucontrol->value.integer.value[1] & mask);
882 		val_mask |= mask << rshift;
883 		if (val2)
884 			val2 = max + 1 - val2;
885 		val |= val2 << rshift;
886 	}
887 	return snd_soc_component_update_bits(component, reg, val_mask, val);
888 }
889 
890 static int snd_soc_get_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
891 					struct snd_ctl_elem_value *ucontrol)
892 {
893 	struct soc_mixer_control *mc =
894 		(struct soc_mixer_control *)kcontrol->private_value;
895 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
896 	unsigned int reg = mc->reg;
897 	unsigned int reg2 = mc->rreg;
898 	unsigned int shift = mc->shift;
899 	int max = mc->max;
900 	int mask = (1<<fls(max))-1;
901 
902 	ucontrol->value.integer.value[0] =
903 		(twl4030_read(component, reg) >> shift) & mask;
904 	ucontrol->value.integer.value[1] =
905 		(twl4030_read(component, reg2) >> shift) & mask;
906 
907 	if (ucontrol->value.integer.value[0])
908 		ucontrol->value.integer.value[0] =
909 			max + 1 - ucontrol->value.integer.value[0];
910 	if (ucontrol->value.integer.value[1])
911 		ucontrol->value.integer.value[1] =
912 			max + 1 - ucontrol->value.integer.value[1];
913 
914 	return 0;
915 }
916 
917 static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
918 					struct snd_ctl_elem_value *ucontrol)
919 {
920 	struct soc_mixer_control *mc =
921 		(struct soc_mixer_control *)kcontrol->private_value;
922 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
923 	unsigned int reg = mc->reg;
924 	unsigned int reg2 = mc->rreg;
925 	unsigned int shift = mc->shift;
926 	int max = mc->max;
927 	int mask = (1 << fls(max)) - 1;
928 	int err;
929 	unsigned short val, val2, val_mask;
930 
931 	val_mask = mask << shift;
932 	val = (ucontrol->value.integer.value[0] & mask);
933 	val2 = (ucontrol->value.integer.value[1] & mask);
934 
935 	if (val)
936 		val = max + 1 - val;
937 	if (val2)
938 		val2 = max + 1 - val2;
939 
940 	val = val << shift;
941 	val2 = val2 << shift;
942 
943 	err = snd_soc_component_update_bits(component, reg, val_mask, val);
944 	if (err < 0)
945 		return err;
946 
947 	err = snd_soc_component_update_bits(component, reg2, val_mask, val2);
948 	return err;
949 }
950 
951 /* Codec operation modes */
952 static const char *twl4030_op_modes_texts[] = {
953 	"Option 2 (voice/audio)", "Option 1 (audio)"
954 };
955 
956 static SOC_ENUM_SINGLE_DECL(twl4030_op_modes_enum,
957 			    TWL4030_REG_CODEC_MODE, 0,
958 			    twl4030_op_modes_texts);
959 
960 static int snd_soc_put_twl4030_opmode_enum_double(struct snd_kcontrol *kcontrol,
961 	struct snd_ctl_elem_value *ucontrol)
962 {
963 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
964 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
965 
966 	if (twl4030->configured) {
967 		dev_err(component->dev,
968 			"operation mode cannot be changed on-the-fly\n");
969 		return -EBUSY;
970 	}
971 
972 	return snd_soc_put_enum_double(kcontrol, ucontrol);
973 }
974 
975 /*
976  * FGAIN volume control:
977  * from -62 to 0 dB in 1 dB steps (mute instead of -63 dB)
978  */
979 static DECLARE_TLV_DB_SCALE(digital_fine_tlv, -6300, 100, 1);
980 
981 /*
982  * CGAIN volume control:
983  * 0 dB to 12 dB in 6 dB steps
984  * value 2 and 3 means 12 dB
985  */
986 static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0, 600, 0);
987 
988 /*
989  * Voice Downlink GAIN volume control:
990  * from -37 to 12 dB in 1 dB steps (mute instead of -37 dB)
991  */
992 static DECLARE_TLV_DB_SCALE(digital_voice_downlink_tlv, -3700, 100, 1);
993 
994 /*
995  * Analog playback gain
996  * -24 dB to 12 dB in 2 dB steps
997  */
998 static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0);
999 
1000 /*
1001  * Gain controls tied to outputs
1002  * -6 dB to 6 dB in 6 dB steps (mute instead of -12)
1003  */
1004 static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1);
1005 
1006 /*
1007  * Gain control for earpiece amplifier
1008  * 0 dB to 12 dB in 6 dB steps (mute instead of -6)
1009  */
1010 static DECLARE_TLV_DB_SCALE(output_ear_tvl, -600, 600, 1);
1011 
1012 /*
1013  * Capture gain after the ADCs
1014  * from 0 dB to 31 dB in 1 dB steps
1015  */
1016 static DECLARE_TLV_DB_SCALE(digital_capture_tlv, 0, 100, 0);
1017 
1018 /*
1019  * Gain control for input amplifiers
1020  * 0 dB to 30 dB in 6 dB steps
1021  */
1022 static DECLARE_TLV_DB_SCALE(input_gain_tlv, 0, 600, 0);
1023 
1024 /* AVADC clock priority */
1025 static const char *twl4030_avadc_clk_priority_texts[] = {
1026 	"Voice high priority", "HiFi high priority"
1027 };
1028 
1029 static SOC_ENUM_SINGLE_DECL(twl4030_avadc_clk_priority_enum,
1030 			    TWL4030_REG_AVADC_CTL, 2,
1031 			    twl4030_avadc_clk_priority_texts);
1032 
1033 static const char *twl4030_rampdelay_texts[] = {
1034 	"27/20/14 ms", "55/40/27 ms", "109/81/55 ms", "218/161/109 ms",
1035 	"437/323/218 ms", "874/645/437 ms", "1748/1291/874 ms",
1036 	"3495/2581/1748 ms"
1037 };
1038 
1039 static SOC_ENUM_SINGLE_DECL(twl4030_rampdelay_enum,
1040 			    TWL4030_REG_HS_POPN_SET, 2,
1041 			    twl4030_rampdelay_texts);
1042 
1043 /* Vibra H-bridge direction mode */
1044 static const char *twl4030_vibradirmode_texts[] = {
1045 	"Vibra H-bridge direction", "Audio data MSB",
1046 };
1047 
1048 static SOC_ENUM_SINGLE_DECL(twl4030_vibradirmode_enum,
1049 			    TWL4030_REG_VIBRA_CTL, 5,
1050 			    twl4030_vibradirmode_texts);
1051 
1052 /* Vibra H-bridge direction */
1053 static const char *twl4030_vibradir_texts[] = {
1054 	"Positive polarity", "Negative polarity",
1055 };
1056 
1057 static SOC_ENUM_SINGLE_DECL(twl4030_vibradir_enum,
1058 			    TWL4030_REG_VIBRA_CTL, 1,
1059 			    twl4030_vibradir_texts);
1060 
1061 /* Digimic Left and right swapping */
1062 static const char *twl4030_digimicswap_texts[] = {
1063 	"Not swapped", "Swapped",
1064 };
1065 
1066 static SOC_ENUM_SINGLE_DECL(twl4030_digimicswap_enum,
1067 			    TWL4030_REG_MISC_SET_1, 0,
1068 			    twl4030_digimicswap_texts);
1069 
1070 static const struct snd_kcontrol_new twl4030_snd_controls[] = {
1071 	/* Codec operation mode control */
1072 	SOC_ENUM_EXT("Codec Operation Mode", twl4030_op_modes_enum,
1073 		snd_soc_get_enum_double,
1074 		snd_soc_put_twl4030_opmode_enum_double),
1075 
1076 	/* Common playback gain controls */
1077 	SOC_DOUBLE_R_TLV("DAC1 Digital Fine Playback Volume",
1078 		TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1079 		0, 0x3f, 0, digital_fine_tlv),
1080 	SOC_DOUBLE_R_TLV("DAC2 Digital Fine Playback Volume",
1081 		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1082 		0, 0x3f, 0, digital_fine_tlv),
1083 
1084 	SOC_DOUBLE_R_TLV("DAC1 Digital Coarse Playback Volume",
1085 		TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1086 		6, 0x2, 0, digital_coarse_tlv),
1087 	SOC_DOUBLE_R_TLV("DAC2 Digital Coarse Playback Volume",
1088 		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1089 		6, 0x2, 0, digital_coarse_tlv),
1090 
1091 	SOC_DOUBLE_R_TLV("DAC1 Analog Playback Volume",
1092 		TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1093 		3, 0x12, 1, analog_tlv),
1094 	SOC_DOUBLE_R_TLV("DAC2 Analog Playback Volume",
1095 		TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1096 		3, 0x12, 1, analog_tlv),
1097 	SOC_DOUBLE_R("DAC1 Analog Playback Switch",
1098 		TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1099 		1, 1, 0),
1100 	SOC_DOUBLE_R("DAC2 Analog Playback Switch",
1101 		TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1102 		1, 1, 0),
1103 
1104 	/* Common voice downlink gain controls */
1105 	SOC_SINGLE_TLV("DAC Voice Digital Downlink Volume",
1106 		TWL4030_REG_VRXPGA, 0, 0x31, 0, digital_voice_downlink_tlv),
1107 
1108 	SOC_SINGLE_TLV("DAC Voice Analog Downlink Volume",
1109 		TWL4030_REG_VDL_APGA_CTL, 3, 0x12, 1, analog_tlv),
1110 
1111 	SOC_SINGLE("DAC Voice Analog Downlink Switch",
1112 		TWL4030_REG_VDL_APGA_CTL, 1, 1, 0),
1113 
1114 	/* Separate output gain controls */
1115 	SOC_DOUBLE_R_EXT_TLV("PreDriv Playback Volume",
1116 		TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL,
1117 		4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1118 		snd_soc_put_volsw_r2_twl4030, output_tvl),
1119 
1120 	SOC_DOUBLE_EXT_TLV("Headset Playback Volume",
1121 		TWL4030_REG_HS_GAIN_SET, 0, 2, 3, 0, snd_soc_get_volsw_twl4030,
1122 		snd_soc_put_volsw_twl4030, output_tvl),
1123 
1124 	SOC_DOUBLE_R_EXT_TLV("Carkit Playback Volume",
1125 		TWL4030_REG_PRECKL_CTL, TWL4030_REG_PRECKR_CTL,
1126 		4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1127 		snd_soc_put_volsw_r2_twl4030, output_tvl),
1128 
1129 	SOC_SINGLE_EXT_TLV("Earpiece Playback Volume",
1130 		TWL4030_REG_EAR_CTL, 4, 3, 0, snd_soc_get_volsw_twl4030,
1131 		snd_soc_put_volsw_twl4030, output_ear_tvl),
1132 
1133 	/* Common capture gain controls */
1134 	SOC_DOUBLE_R_TLV("TX1 Digital Capture Volume",
1135 		TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA,
1136 		0, 0x1f, 0, digital_capture_tlv),
1137 	SOC_DOUBLE_R_TLV("TX2 Digital Capture Volume",
1138 		TWL4030_REG_AVTXL2PGA, TWL4030_REG_AVTXR2PGA,
1139 		0, 0x1f, 0, digital_capture_tlv),
1140 
1141 	SOC_DOUBLE_TLV("Analog Capture Volume", TWL4030_REG_ANAMIC_GAIN,
1142 		0, 3, 5, 0, input_gain_tlv),
1143 
1144 	SOC_ENUM("AVADC Clock Priority", twl4030_avadc_clk_priority_enum),
1145 
1146 	SOC_ENUM("HS ramp delay", twl4030_rampdelay_enum),
1147 
1148 	SOC_ENUM("Vibra H-bridge mode", twl4030_vibradirmode_enum),
1149 	SOC_ENUM("Vibra H-bridge direction", twl4030_vibradir_enum),
1150 
1151 	SOC_ENUM("Digimic LR Swap", twl4030_digimicswap_enum),
1152 };
1153 
1154 static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
1155 	/* Left channel inputs */
1156 	SND_SOC_DAPM_INPUT("MAINMIC"),
1157 	SND_SOC_DAPM_INPUT("HSMIC"),
1158 	SND_SOC_DAPM_INPUT("AUXL"),
1159 	SND_SOC_DAPM_INPUT("CARKITMIC"),
1160 	/* Right channel inputs */
1161 	SND_SOC_DAPM_INPUT("SUBMIC"),
1162 	SND_SOC_DAPM_INPUT("AUXR"),
1163 	/* Digital microphones (Stereo) */
1164 	SND_SOC_DAPM_INPUT("DIGIMIC0"),
1165 	SND_SOC_DAPM_INPUT("DIGIMIC1"),
1166 
1167 	/* Outputs */
1168 	SND_SOC_DAPM_OUTPUT("EARPIECE"),
1169 	SND_SOC_DAPM_OUTPUT("PREDRIVEL"),
1170 	SND_SOC_DAPM_OUTPUT("PREDRIVER"),
1171 	SND_SOC_DAPM_OUTPUT("HSOL"),
1172 	SND_SOC_DAPM_OUTPUT("HSOR"),
1173 	SND_SOC_DAPM_OUTPUT("CARKITL"),
1174 	SND_SOC_DAPM_OUTPUT("CARKITR"),
1175 	SND_SOC_DAPM_OUTPUT("HFL"),
1176 	SND_SOC_DAPM_OUTPUT("HFR"),
1177 	SND_SOC_DAPM_OUTPUT("VIBRA"),
1178 
1179 	/* AIF and APLL clocks for running DAIs (including loopback) */
1180 	SND_SOC_DAPM_OUTPUT("Virtual HiFi OUT"),
1181 	SND_SOC_DAPM_INPUT("Virtual HiFi IN"),
1182 	SND_SOC_DAPM_OUTPUT("Virtual Voice OUT"),
1183 
1184 	/* DACs */
1185 	SND_SOC_DAPM_DAC("DAC Right1", NULL, SND_SOC_NOPM, 0, 0),
1186 	SND_SOC_DAPM_DAC("DAC Left1", NULL, SND_SOC_NOPM, 0, 0),
1187 	SND_SOC_DAPM_DAC("DAC Right2", NULL, SND_SOC_NOPM, 0, 0),
1188 	SND_SOC_DAPM_DAC("DAC Left2", NULL, SND_SOC_NOPM, 0, 0),
1189 	SND_SOC_DAPM_DAC("DAC Voice", NULL, SND_SOC_NOPM, 0, 0),
1190 
1191 	SND_SOC_DAPM_AIF_IN("VAIFIN", "Voice Playback", 0,
1192 			    TWL4030_REG_VOICE_IF, 6, 0),
1193 
1194 	/* Analog bypasses */
1195 	SND_SOC_DAPM_SWITCH("Right1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1196 			&twl4030_dapm_abypassr1_control),
1197 	SND_SOC_DAPM_SWITCH("Left1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1198 			&twl4030_dapm_abypassl1_control),
1199 	SND_SOC_DAPM_SWITCH("Right2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1200 			&twl4030_dapm_abypassr2_control),
1201 	SND_SOC_DAPM_SWITCH("Left2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1202 			&twl4030_dapm_abypassl2_control),
1203 	SND_SOC_DAPM_SWITCH("Voice Analog Loopback", SND_SOC_NOPM, 0, 0,
1204 			&twl4030_dapm_abypassv_control),
1205 
1206 	/* Master analog loopback switch */
1207 	SND_SOC_DAPM_SUPPLY("FM Loop Enable", TWL4030_REG_MISC_SET_1, 5, 0,
1208 			    NULL, 0),
1209 
1210 	/* Digital bypasses */
1211 	SND_SOC_DAPM_SWITCH("Left Digital Loopback", SND_SOC_NOPM, 0, 0,
1212 			&twl4030_dapm_dbypassl_control),
1213 	SND_SOC_DAPM_SWITCH("Right Digital Loopback", SND_SOC_NOPM, 0, 0,
1214 			&twl4030_dapm_dbypassr_control),
1215 	SND_SOC_DAPM_SWITCH("Voice Digital Loopback", SND_SOC_NOPM, 0, 0,
1216 			&twl4030_dapm_dbypassv_control),
1217 
1218 	/* Digital mixers, power control for the physical DACs */
1219 	SND_SOC_DAPM_MIXER("Digital R1 Playback Mixer",
1220 			TWL4030_REG_AVDAC_CTL, 0, 0, NULL, 0),
1221 	SND_SOC_DAPM_MIXER("Digital L1 Playback Mixer",
1222 			TWL4030_REG_AVDAC_CTL, 1, 0, NULL, 0),
1223 	SND_SOC_DAPM_MIXER("Digital R2 Playback Mixer",
1224 			TWL4030_REG_AVDAC_CTL, 2, 0, NULL, 0),
1225 	SND_SOC_DAPM_MIXER("Digital L2 Playback Mixer",
1226 			TWL4030_REG_AVDAC_CTL, 3, 0, NULL, 0),
1227 	SND_SOC_DAPM_MIXER("Digital Voice Playback Mixer",
1228 			TWL4030_REG_AVDAC_CTL, 4, 0, NULL, 0),
1229 
1230 	/* Analog mixers, power control for the physical PGAs */
1231 	SND_SOC_DAPM_MIXER("Analog R1 Playback Mixer",
1232 			TWL4030_REG_ARXR1_APGA_CTL, 0, 0, NULL, 0),
1233 	SND_SOC_DAPM_MIXER("Analog L1 Playback Mixer",
1234 			TWL4030_REG_ARXL1_APGA_CTL, 0, 0, NULL, 0),
1235 	SND_SOC_DAPM_MIXER("Analog R2 Playback Mixer",
1236 			TWL4030_REG_ARXR2_APGA_CTL, 0, 0, NULL, 0),
1237 	SND_SOC_DAPM_MIXER("Analog L2 Playback Mixer",
1238 			TWL4030_REG_ARXL2_APGA_CTL, 0, 0, NULL, 0),
1239 	SND_SOC_DAPM_MIXER("Analog Voice Playback Mixer",
1240 			TWL4030_REG_VDL_APGA_CTL, 0, 0, NULL, 0),
1241 
1242 	SND_SOC_DAPM_SUPPLY("APLL Enable", SND_SOC_NOPM, 0, 0, apll_event,
1243 			    SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1244 
1245 	SND_SOC_DAPM_SUPPLY("AIF Enable", SND_SOC_NOPM, 0, 0, aif_event,
1246 			    SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1247 
1248 	/* Output MIXER controls */
1249 	/* Earpiece */
1250 	SND_SOC_DAPM_MIXER("Earpiece Mixer", SND_SOC_NOPM, 0, 0,
1251 			&twl4030_dapm_earpiece_controls[0],
1252 			ARRAY_SIZE(twl4030_dapm_earpiece_controls)),
1253 	SND_SOC_DAPM_PGA_E("Earpiece PGA", SND_SOC_NOPM,
1254 			0, 0, NULL, 0, earpiecepga_event,
1255 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1256 	/* PreDrivL/R */
1257 	SND_SOC_DAPM_MIXER("PredriveL Mixer", SND_SOC_NOPM, 0, 0,
1258 			&twl4030_dapm_predrivel_controls[0],
1259 			ARRAY_SIZE(twl4030_dapm_predrivel_controls)),
1260 	SND_SOC_DAPM_PGA_E("PredriveL PGA", SND_SOC_NOPM,
1261 			0, 0, NULL, 0, predrivelpga_event,
1262 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1263 	SND_SOC_DAPM_MIXER("PredriveR Mixer", SND_SOC_NOPM, 0, 0,
1264 			&twl4030_dapm_predriver_controls[0],
1265 			ARRAY_SIZE(twl4030_dapm_predriver_controls)),
1266 	SND_SOC_DAPM_PGA_E("PredriveR PGA", SND_SOC_NOPM,
1267 			0, 0, NULL, 0, predriverpga_event,
1268 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1269 	/* HeadsetL/R */
1270 	SND_SOC_DAPM_MIXER("HeadsetL Mixer", SND_SOC_NOPM, 0, 0,
1271 			&twl4030_dapm_hsol_controls[0],
1272 			ARRAY_SIZE(twl4030_dapm_hsol_controls)),
1273 	SND_SOC_DAPM_PGA_E("HeadsetL PGA", SND_SOC_NOPM,
1274 			0, 0, NULL, 0, headsetlpga_event,
1275 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1276 	SND_SOC_DAPM_MIXER("HeadsetR Mixer", SND_SOC_NOPM, 0, 0,
1277 			&twl4030_dapm_hsor_controls[0],
1278 			ARRAY_SIZE(twl4030_dapm_hsor_controls)),
1279 	SND_SOC_DAPM_PGA_E("HeadsetR PGA", SND_SOC_NOPM,
1280 			0, 0, NULL, 0, headsetrpga_event,
1281 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1282 	/* CarkitL/R */
1283 	SND_SOC_DAPM_MIXER("CarkitL Mixer", SND_SOC_NOPM, 0, 0,
1284 			&twl4030_dapm_carkitl_controls[0],
1285 			ARRAY_SIZE(twl4030_dapm_carkitl_controls)),
1286 	SND_SOC_DAPM_PGA_E("CarkitL PGA", SND_SOC_NOPM,
1287 			0, 0, NULL, 0, carkitlpga_event,
1288 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1289 	SND_SOC_DAPM_MIXER("CarkitR Mixer", SND_SOC_NOPM, 0, 0,
1290 			&twl4030_dapm_carkitr_controls[0],
1291 			ARRAY_SIZE(twl4030_dapm_carkitr_controls)),
1292 	SND_SOC_DAPM_PGA_E("CarkitR PGA", SND_SOC_NOPM,
1293 			0, 0, NULL, 0, carkitrpga_event,
1294 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1295 
1296 	/* Output MUX controls */
1297 	/* HandsfreeL/R */
1298 	SND_SOC_DAPM_MUX("HandsfreeL Mux", SND_SOC_NOPM, 0, 0,
1299 		&twl4030_dapm_handsfreel_control),
1300 	SND_SOC_DAPM_SWITCH("HandsfreeL", SND_SOC_NOPM, 0, 0,
1301 			&twl4030_dapm_handsfreelmute_control),
1302 	SND_SOC_DAPM_PGA_E("HandsfreeL PGA", SND_SOC_NOPM,
1303 			0, 0, NULL, 0, handsfreelpga_event,
1304 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1305 	SND_SOC_DAPM_MUX("HandsfreeR Mux", SND_SOC_NOPM, 5, 0,
1306 		&twl4030_dapm_handsfreer_control),
1307 	SND_SOC_DAPM_SWITCH("HandsfreeR", SND_SOC_NOPM, 0, 0,
1308 			&twl4030_dapm_handsfreermute_control),
1309 	SND_SOC_DAPM_PGA_E("HandsfreeR PGA", SND_SOC_NOPM,
1310 			0, 0, NULL, 0, handsfreerpga_event,
1311 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1312 	/* Vibra */
1313 	SND_SOC_DAPM_MUX_E("Vibra Mux", TWL4030_REG_VIBRA_CTL, 0, 0,
1314 			   &twl4030_dapm_vibra_control, vibramux_event,
1315 			   SND_SOC_DAPM_PRE_PMU),
1316 	SND_SOC_DAPM_MUX("Vibra Route", SND_SOC_NOPM, 0, 0,
1317 		&twl4030_dapm_vibrapath_control),
1318 
1319 	/* Introducing four virtual ADC, since TWL4030 have four channel for
1320 	   capture */
1321 	SND_SOC_DAPM_ADC("ADC Virtual Left1", NULL, SND_SOC_NOPM, 0, 0),
1322 	SND_SOC_DAPM_ADC("ADC Virtual Right1", NULL, SND_SOC_NOPM, 0, 0),
1323 	SND_SOC_DAPM_ADC("ADC Virtual Left2", NULL, SND_SOC_NOPM, 0, 0),
1324 	SND_SOC_DAPM_ADC("ADC Virtual Right2", NULL, SND_SOC_NOPM, 0, 0),
1325 
1326 	SND_SOC_DAPM_AIF_OUT("VAIFOUT", "Voice Capture", 0,
1327 			     TWL4030_REG_VOICE_IF, 5, 0),
1328 
1329 	/* Analog/Digital mic path selection.
1330 	   TX1 Left/Right: either analog Left/Right or Digimic0
1331 	   TX2 Left/Right: either analog Left/Right or Digimic1 */
1332 	SND_SOC_DAPM_MUX("TX1 Capture Route", SND_SOC_NOPM, 0, 0,
1333 		&twl4030_dapm_micpathtx1_control),
1334 	SND_SOC_DAPM_MUX("TX2 Capture Route", SND_SOC_NOPM, 0, 0,
1335 		&twl4030_dapm_micpathtx2_control),
1336 
1337 	/* Analog input mixers for the capture amplifiers */
1338 	SND_SOC_DAPM_MIXER("Analog Left",
1339 		TWL4030_REG_ANAMICL, 4, 0,
1340 		&twl4030_dapm_analoglmic_controls[0],
1341 		ARRAY_SIZE(twl4030_dapm_analoglmic_controls)),
1342 	SND_SOC_DAPM_MIXER("Analog Right",
1343 		TWL4030_REG_ANAMICR, 4, 0,
1344 		&twl4030_dapm_analogrmic_controls[0],
1345 		ARRAY_SIZE(twl4030_dapm_analogrmic_controls)),
1346 
1347 	SND_SOC_DAPM_PGA("ADC Physical Left",
1348 		TWL4030_REG_AVADC_CTL, 3, 0, NULL, 0),
1349 	SND_SOC_DAPM_PGA("ADC Physical Right",
1350 		TWL4030_REG_AVADC_CTL, 1, 0, NULL, 0),
1351 
1352 	SND_SOC_DAPM_PGA_E("Digimic0 Enable",
1353 		TWL4030_REG_ADCMICSEL, 1, 0, NULL, 0,
1354 		digimic_event, SND_SOC_DAPM_POST_PMU),
1355 	SND_SOC_DAPM_PGA_E("Digimic1 Enable",
1356 		TWL4030_REG_ADCMICSEL, 3, 0, NULL, 0,
1357 		digimic_event, SND_SOC_DAPM_POST_PMU),
1358 
1359 	SND_SOC_DAPM_SUPPLY("micbias1 select", TWL4030_REG_MICBIAS_CTL, 5, 0,
1360 			    NULL, 0),
1361 	SND_SOC_DAPM_SUPPLY("micbias2 select", TWL4030_REG_MICBIAS_CTL, 6, 0,
1362 			    NULL, 0),
1363 
1364 	/* Microphone bias */
1365 	SND_SOC_DAPM_SUPPLY("Mic Bias 1",
1366 			    TWL4030_REG_MICBIAS_CTL, 0, 0, NULL, 0),
1367 	SND_SOC_DAPM_SUPPLY("Mic Bias 2",
1368 			    TWL4030_REG_MICBIAS_CTL, 1, 0, NULL, 0),
1369 	SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
1370 			    TWL4030_REG_MICBIAS_CTL, 2, 0, NULL, 0),
1371 
1372 	SND_SOC_DAPM_SUPPLY("VIF Enable", TWL4030_REG_VOICE_IF, 0, 0, NULL, 0),
1373 };
1374 
1375 static const struct snd_soc_dapm_route intercon[] = {
1376 	/* Stream -> DAC mapping */
1377 	{"DAC Right1", NULL, "HiFi Playback"},
1378 	{"DAC Left1", NULL, "HiFi Playback"},
1379 	{"DAC Right2", NULL, "HiFi Playback"},
1380 	{"DAC Left2", NULL, "HiFi Playback"},
1381 	{"DAC Voice", NULL, "VAIFIN"},
1382 
1383 	/* ADC -> Stream mapping */
1384 	{"HiFi Capture", NULL, "ADC Virtual Left1"},
1385 	{"HiFi Capture", NULL, "ADC Virtual Right1"},
1386 	{"HiFi Capture", NULL, "ADC Virtual Left2"},
1387 	{"HiFi Capture", NULL, "ADC Virtual Right2"},
1388 	{"VAIFOUT", NULL, "ADC Virtual Left2"},
1389 	{"VAIFOUT", NULL, "ADC Virtual Right2"},
1390 	{"VAIFOUT", NULL, "VIF Enable"},
1391 
1392 	{"Digital L1 Playback Mixer", NULL, "DAC Left1"},
1393 	{"Digital R1 Playback Mixer", NULL, "DAC Right1"},
1394 	{"Digital L2 Playback Mixer", NULL, "DAC Left2"},
1395 	{"Digital R2 Playback Mixer", NULL, "DAC Right2"},
1396 	{"Digital Voice Playback Mixer", NULL, "DAC Voice"},
1397 
1398 	/* Supply for the digital part (APLL) */
1399 	{"Digital Voice Playback Mixer", NULL, "APLL Enable"},
1400 
1401 	{"DAC Left1", NULL, "AIF Enable"},
1402 	{"DAC Right1", NULL, "AIF Enable"},
1403 	{"DAC Left2", NULL, "AIF Enable"},
1404 	{"DAC Right1", NULL, "AIF Enable"},
1405 	{"DAC Voice", NULL, "VIF Enable"},
1406 
1407 	{"Digital R2 Playback Mixer", NULL, "AIF Enable"},
1408 	{"Digital L2 Playback Mixer", NULL, "AIF Enable"},
1409 
1410 	{"Analog L1 Playback Mixer", NULL, "Digital L1 Playback Mixer"},
1411 	{"Analog R1 Playback Mixer", NULL, "Digital R1 Playback Mixer"},
1412 	{"Analog L2 Playback Mixer", NULL, "Digital L2 Playback Mixer"},
1413 	{"Analog R2 Playback Mixer", NULL, "Digital R2 Playback Mixer"},
1414 	{"Analog Voice Playback Mixer", NULL, "Digital Voice Playback Mixer"},
1415 
1416 	/* Internal playback routings */
1417 	/* Earpiece */
1418 	{"Earpiece Mixer", "Voice", "Analog Voice Playback Mixer"},
1419 	{"Earpiece Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1420 	{"Earpiece Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1421 	{"Earpiece Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1422 	{"Earpiece PGA", NULL, "Earpiece Mixer"},
1423 	/* PreDrivL */
1424 	{"PredriveL Mixer", "Voice", "Analog Voice Playback Mixer"},
1425 	{"PredriveL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1426 	{"PredriveL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1427 	{"PredriveL Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1428 	{"PredriveL PGA", NULL, "PredriveL Mixer"},
1429 	/* PreDrivR */
1430 	{"PredriveR Mixer", "Voice", "Analog Voice Playback Mixer"},
1431 	{"PredriveR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1432 	{"PredriveR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1433 	{"PredriveR Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1434 	{"PredriveR PGA", NULL, "PredriveR Mixer"},
1435 	/* HeadsetL */
1436 	{"HeadsetL Mixer", "Voice", "Analog Voice Playback Mixer"},
1437 	{"HeadsetL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1438 	{"HeadsetL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1439 	{"HeadsetL PGA", NULL, "HeadsetL Mixer"},
1440 	/* HeadsetR */
1441 	{"HeadsetR Mixer", "Voice", "Analog Voice Playback Mixer"},
1442 	{"HeadsetR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1443 	{"HeadsetR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1444 	{"HeadsetR PGA", NULL, "HeadsetR Mixer"},
1445 	/* CarkitL */
1446 	{"CarkitL Mixer", "Voice", "Analog Voice Playback Mixer"},
1447 	{"CarkitL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1448 	{"CarkitL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1449 	{"CarkitL PGA", NULL, "CarkitL Mixer"},
1450 	/* CarkitR */
1451 	{"CarkitR Mixer", "Voice", "Analog Voice Playback Mixer"},
1452 	{"CarkitR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1453 	{"CarkitR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1454 	{"CarkitR PGA", NULL, "CarkitR Mixer"},
1455 	/* HandsfreeL */
1456 	{"HandsfreeL Mux", "Voice", "Analog Voice Playback Mixer"},
1457 	{"HandsfreeL Mux", "AudioL1", "Analog L1 Playback Mixer"},
1458 	{"HandsfreeL Mux", "AudioL2", "Analog L2 Playback Mixer"},
1459 	{"HandsfreeL Mux", "AudioR2", "Analog R2 Playback Mixer"},
1460 	{"HandsfreeL", "Switch", "HandsfreeL Mux"},
1461 	{"HandsfreeL PGA", NULL, "HandsfreeL"},
1462 	/* HandsfreeR */
1463 	{"HandsfreeR Mux", "Voice", "Analog Voice Playback Mixer"},
1464 	{"HandsfreeR Mux", "AudioR1", "Analog R1 Playback Mixer"},
1465 	{"HandsfreeR Mux", "AudioR2", "Analog R2 Playback Mixer"},
1466 	{"HandsfreeR Mux", "AudioL2", "Analog L2 Playback Mixer"},
1467 	{"HandsfreeR", "Switch", "HandsfreeR Mux"},
1468 	{"HandsfreeR PGA", NULL, "HandsfreeR"},
1469 	/* Vibra */
1470 	{"Vibra Mux", "AudioL1", "DAC Left1"},
1471 	{"Vibra Mux", "AudioR1", "DAC Right1"},
1472 	{"Vibra Mux", "AudioL2", "DAC Left2"},
1473 	{"Vibra Mux", "AudioR2", "DAC Right2"},
1474 
1475 	/* outputs */
1476 	/* Must be always connected (for AIF and APLL) */
1477 	{"Virtual HiFi OUT", NULL, "DAC Left1"},
1478 	{"Virtual HiFi OUT", NULL, "DAC Right1"},
1479 	{"Virtual HiFi OUT", NULL, "DAC Left2"},
1480 	{"Virtual HiFi OUT", NULL, "DAC Right2"},
1481 	/* Must be always connected (for APLL) */
1482 	{"Virtual Voice OUT", NULL, "Digital Voice Playback Mixer"},
1483 	/* Physical outputs */
1484 	{"EARPIECE", NULL, "Earpiece PGA"},
1485 	{"PREDRIVEL", NULL, "PredriveL PGA"},
1486 	{"PREDRIVER", NULL, "PredriveR PGA"},
1487 	{"HSOL", NULL, "HeadsetL PGA"},
1488 	{"HSOR", NULL, "HeadsetR PGA"},
1489 	{"CARKITL", NULL, "CarkitL PGA"},
1490 	{"CARKITR", NULL, "CarkitR PGA"},
1491 	{"HFL", NULL, "HandsfreeL PGA"},
1492 	{"HFR", NULL, "HandsfreeR PGA"},
1493 	{"Vibra Route", "Audio", "Vibra Mux"},
1494 	{"VIBRA", NULL, "Vibra Route"},
1495 
1496 	/* Capture path */
1497 	/* Must be always connected (for AIF and APLL) */
1498 	{"ADC Virtual Left1", NULL, "Virtual HiFi IN"},
1499 	{"ADC Virtual Right1", NULL, "Virtual HiFi IN"},
1500 	{"ADC Virtual Left2", NULL, "Virtual HiFi IN"},
1501 	{"ADC Virtual Right2", NULL, "Virtual HiFi IN"},
1502 	/* Physical inputs */
1503 	{"Analog Left", "Main Mic Capture Switch", "MAINMIC"},
1504 	{"Analog Left", "Headset Mic Capture Switch", "HSMIC"},
1505 	{"Analog Left", "AUXL Capture Switch", "AUXL"},
1506 	{"Analog Left", "Carkit Mic Capture Switch", "CARKITMIC"},
1507 
1508 	{"Analog Right", "Sub Mic Capture Switch", "SUBMIC"},
1509 	{"Analog Right", "AUXR Capture Switch", "AUXR"},
1510 
1511 	{"ADC Physical Left", NULL, "Analog Left"},
1512 	{"ADC Physical Right", NULL, "Analog Right"},
1513 
1514 	{"Digimic0 Enable", NULL, "DIGIMIC0"},
1515 	{"Digimic1 Enable", NULL, "DIGIMIC1"},
1516 
1517 	{"DIGIMIC0", NULL, "micbias1 select"},
1518 	{"DIGIMIC1", NULL, "micbias2 select"},
1519 
1520 	/* TX1 Left capture path */
1521 	{"TX1 Capture Route", "Analog", "ADC Physical Left"},
1522 	{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1523 	/* TX1 Right capture path */
1524 	{"TX1 Capture Route", "Analog", "ADC Physical Right"},
1525 	{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1526 	/* TX2 Left capture path */
1527 	{"TX2 Capture Route", "Analog", "ADC Physical Left"},
1528 	{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1529 	/* TX2 Right capture path */
1530 	{"TX2 Capture Route", "Analog", "ADC Physical Right"},
1531 	{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1532 
1533 	{"ADC Virtual Left1", NULL, "TX1 Capture Route"},
1534 	{"ADC Virtual Right1", NULL, "TX1 Capture Route"},
1535 	{"ADC Virtual Left2", NULL, "TX2 Capture Route"},
1536 	{"ADC Virtual Right2", NULL, "TX2 Capture Route"},
1537 
1538 	{"ADC Virtual Left1", NULL, "AIF Enable"},
1539 	{"ADC Virtual Right1", NULL, "AIF Enable"},
1540 	{"ADC Virtual Left2", NULL, "AIF Enable"},
1541 	{"ADC Virtual Right2", NULL, "AIF Enable"},
1542 
1543 	/* Analog bypass routes */
1544 	{"Right1 Analog Loopback", "Switch", "Analog Right"},
1545 	{"Left1 Analog Loopback", "Switch", "Analog Left"},
1546 	{"Right2 Analog Loopback", "Switch", "Analog Right"},
1547 	{"Left2 Analog Loopback", "Switch", "Analog Left"},
1548 	{"Voice Analog Loopback", "Switch", "Analog Left"},
1549 
1550 	/* Supply for the Analog loopbacks */
1551 	{"Right1 Analog Loopback", NULL, "FM Loop Enable"},
1552 	{"Left1 Analog Loopback", NULL, "FM Loop Enable"},
1553 	{"Right2 Analog Loopback", NULL, "FM Loop Enable"},
1554 	{"Left2 Analog Loopback", NULL, "FM Loop Enable"},
1555 	{"Voice Analog Loopback", NULL, "FM Loop Enable"},
1556 
1557 	{"Analog R1 Playback Mixer", NULL, "Right1 Analog Loopback"},
1558 	{"Analog L1 Playback Mixer", NULL, "Left1 Analog Loopback"},
1559 	{"Analog R2 Playback Mixer", NULL, "Right2 Analog Loopback"},
1560 	{"Analog L2 Playback Mixer", NULL, "Left2 Analog Loopback"},
1561 	{"Analog Voice Playback Mixer", NULL, "Voice Analog Loopback"},
1562 
1563 	/* Digital bypass routes */
1564 	{"Right Digital Loopback", "Volume", "TX1 Capture Route"},
1565 	{"Left Digital Loopback", "Volume", "TX1 Capture Route"},
1566 	{"Voice Digital Loopback", "Volume", "TX2 Capture Route"},
1567 
1568 	{"Digital R2 Playback Mixer", NULL, "Right Digital Loopback"},
1569 	{"Digital L2 Playback Mixer", NULL, "Left Digital Loopback"},
1570 	{"Digital Voice Playback Mixer", NULL, "Voice Digital Loopback"},
1571 
1572 };
1573 
1574 static int twl4030_set_bias_level(struct snd_soc_component *component,
1575 				  enum snd_soc_bias_level level)
1576 {
1577 	switch (level) {
1578 	case SND_SOC_BIAS_ON:
1579 		break;
1580 	case SND_SOC_BIAS_PREPARE:
1581 		break;
1582 	case SND_SOC_BIAS_STANDBY:
1583 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)
1584 			twl4030_codec_enable(component, 1);
1585 		break;
1586 	case SND_SOC_BIAS_OFF:
1587 		twl4030_codec_enable(component, 0);
1588 		break;
1589 	}
1590 
1591 	return 0;
1592 }
1593 
1594 static void twl4030_constraints(struct twl4030_priv *twl4030,
1595 				struct snd_pcm_substream *mst_substream)
1596 {
1597 	struct snd_pcm_substream *slv_substream;
1598 
1599 	/* Pick the stream, which need to be constrained */
1600 	if (mst_substream == twl4030->master_substream)
1601 		slv_substream = twl4030->slave_substream;
1602 	else if (mst_substream == twl4030->slave_substream)
1603 		slv_substream = twl4030->master_substream;
1604 	else /* This should not happen.. */
1605 		return;
1606 
1607 	/* Set the constraints according to the already configured stream */
1608 	snd_pcm_hw_constraint_single(slv_substream->runtime,
1609 				SNDRV_PCM_HW_PARAM_RATE,
1610 				twl4030->rate);
1611 
1612 	snd_pcm_hw_constraint_single(slv_substream->runtime,
1613 				SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
1614 				twl4030->sample_bits);
1615 
1616 	snd_pcm_hw_constraint_single(slv_substream->runtime,
1617 				SNDRV_PCM_HW_PARAM_CHANNELS,
1618 				twl4030->channels);
1619 }
1620 
1621 /* In case of 4 channel mode, the RX1 L/R for playback and the TX2 L/R for
1622  * capture has to be enabled/disabled. */
1623 static void twl4030_tdm_enable(struct snd_soc_component *component, int direction,
1624 			       int enable)
1625 {
1626 	u8 reg, mask;
1627 
1628 	reg = twl4030_read(component, TWL4030_REG_OPTION);
1629 
1630 	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1631 		mask = TWL4030_ARXL1_VRX_EN | TWL4030_ARXR1_EN;
1632 	else
1633 		mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1634 
1635 	if (enable)
1636 		reg |= mask;
1637 	else
1638 		reg &= ~mask;
1639 
1640 	twl4030_write(component, TWL4030_REG_OPTION, reg);
1641 }
1642 
1643 static int twl4030_startup(struct snd_pcm_substream *substream,
1644 			   struct snd_soc_dai *dai)
1645 {
1646 	struct snd_soc_component *component = dai->component;
1647 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1648 
1649 	if (twl4030->master_substream) {
1650 		twl4030->slave_substream = substream;
1651 		/* The DAI has one configuration for playback and capture, so
1652 		 * if the DAI has been already configured then constrain this
1653 		 * substream to match it. */
1654 		if (twl4030->configured)
1655 			twl4030_constraints(twl4030, twl4030->master_substream);
1656 	} else {
1657 		if (!(twl4030_read(component, TWL4030_REG_CODEC_MODE) &
1658 			TWL4030_OPTION_1)) {
1659 			/* In option2 4 channel is not supported, set the
1660 			 * constraint for the first stream for channels, the
1661 			 * second stream will 'inherit' this cosntraint */
1662 			snd_pcm_hw_constraint_single(substream->runtime,
1663 						     SNDRV_PCM_HW_PARAM_CHANNELS,
1664 						     2);
1665 		}
1666 		twl4030->master_substream = substream;
1667 	}
1668 
1669 	return 0;
1670 }
1671 
1672 static void twl4030_shutdown(struct snd_pcm_substream *substream,
1673 			     struct snd_soc_dai *dai)
1674 {
1675 	struct snd_soc_component *component = dai->component;
1676 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1677 
1678 	if (twl4030->master_substream == substream)
1679 		twl4030->master_substream = twl4030->slave_substream;
1680 
1681 	twl4030->slave_substream = NULL;
1682 
1683 	/* If all streams are closed, or the remaining stream has not yet
1684 	 * been configured than set the DAI as not configured. */
1685 	if (!twl4030->master_substream)
1686 		twl4030->configured = 0;
1687 	 else if (!twl4030->master_substream->runtime->channels)
1688 		twl4030->configured = 0;
1689 
1690 	 /* If the closing substream had 4 channel, do the necessary cleanup */
1691 	if (substream->runtime->channels == 4)
1692 		twl4030_tdm_enable(component, substream->stream, 0);
1693 }
1694 
1695 static int twl4030_hw_params(struct snd_pcm_substream *substream,
1696 			     struct snd_pcm_hw_params *params,
1697 			     struct snd_soc_dai *dai)
1698 {
1699 	struct snd_soc_component *component = dai->component;
1700 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1701 	u8 mode, old_mode, format, old_format;
1702 
1703 	 /* If the substream has 4 channel, do the necessary setup */
1704 	if (params_channels(params) == 4) {
1705 		format = twl4030_read(component, TWL4030_REG_AUDIO_IF);
1706 		mode = twl4030_read(component, TWL4030_REG_CODEC_MODE);
1707 
1708 		/* Safety check: are we in the correct operating mode and
1709 		 * the interface is in TDM mode? */
1710 		if ((mode & TWL4030_OPTION_1) &&
1711 		    ((format & TWL4030_AIF_FORMAT) == TWL4030_AIF_FORMAT_TDM))
1712 			twl4030_tdm_enable(component, substream->stream, 1);
1713 		else
1714 			return -EINVAL;
1715 	}
1716 
1717 	if (twl4030->configured)
1718 		/* Ignoring hw_params for already configured DAI */
1719 		return 0;
1720 
1721 	/* bit rate */
1722 	old_mode = twl4030_read(component,
1723 				TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1724 	mode = old_mode & ~TWL4030_APLL_RATE;
1725 
1726 	switch (params_rate(params)) {
1727 	case 8000:
1728 		mode |= TWL4030_APLL_RATE_8000;
1729 		break;
1730 	case 11025:
1731 		mode |= TWL4030_APLL_RATE_11025;
1732 		break;
1733 	case 12000:
1734 		mode |= TWL4030_APLL_RATE_12000;
1735 		break;
1736 	case 16000:
1737 		mode |= TWL4030_APLL_RATE_16000;
1738 		break;
1739 	case 22050:
1740 		mode |= TWL4030_APLL_RATE_22050;
1741 		break;
1742 	case 24000:
1743 		mode |= TWL4030_APLL_RATE_24000;
1744 		break;
1745 	case 32000:
1746 		mode |= TWL4030_APLL_RATE_32000;
1747 		break;
1748 	case 44100:
1749 		mode |= TWL4030_APLL_RATE_44100;
1750 		break;
1751 	case 48000:
1752 		mode |= TWL4030_APLL_RATE_48000;
1753 		break;
1754 	case 96000:
1755 		mode |= TWL4030_APLL_RATE_96000;
1756 		break;
1757 	default:
1758 		dev_err(component->dev, "%s: unknown rate %d\n", __func__,
1759 			params_rate(params));
1760 		return -EINVAL;
1761 	}
1762 
1763 	/* sample size */
1764 	old_format = twl4030_read(component, TWL4030_REG_AUDIO_IF);
1765 	format = old_format;
1766 	format &= ~TWL4030_DATA_WIDTH;
1767 	switch (params_width(params)) {
1768 	case 16:
1769 		format |= TWL4030_DATA_WIDTH_16S_16W;
1770 		break;
1771 	case 32:
1772 		format |= TWL4030_DATA_WIDTH_32S_24W;
1773 		break;
1774 	default:
1775 		dev_err(component->dev, "%s: unsupported bits/sample %d\n",
1776 			__func__, params_width(params));
1777 		return -EINVAL;
1778 	}
1779 
1780 	if (format != old_format || mode != old_mode) {
1781 		if (twl4030->codec_powered) {
1782 			/*
1783 			 * If the codec is powered, than we need to toggle the
1784 			 * codec power.
1785 			 */
1786 			twl4030_codec_enable(component, 0);
1787 			twl4030_write(component, TWL4030_REG_CODEC_MODE, mode);
1788 			twl4030_write(component, TWL4030_REG_AUDIO_IF, format);
1789 			twl4030_codec_enable(component, 1);
1790 		} else {
1791 			twl4030_write(component, TWL4030_REG_CODEC_MODE, mode);
1792 			twl4030_write(component, TWL4030_REG_AUDIO_IF, format);
1793 		}
1794 	}
1795 
1796 	/* Store the important parameters for the DAI configuration and set
1797 	 * the DAI as configured */
1798 	twl4030->configured = 1;
1799 	twl4030->rate = params_rate(params);
1800 	twl4030->sample_bits = hw_param_interval(params,
1801 					SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;
1802 	twl4030->channels = params_channels(params);
1803 
1804 	/* If both playback and capture streams are open, and one of them
1805 	 * is setting the hw parameters right now (since we are here), set
1806 	 * constraints to the other stream to match the current one. */
1807 	if (twl4030->slave_substream)
1808 		twl4030_constraints(twl4030, substream);
1809 
1810 	return 0;
1811 }
1812 
1813 static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id,
1814 				  unsigned int freq, int dir)
1815 {
1816 	struct snd_soc_component *component = codec_dai->component;
1817 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1818 
1819 	switch (freq) {
1820 	case 19200000:
1821 	case 26000000:
1822 	case 38400000:
1823 		break;
1824 	default:
1825 		dev_err(component->dev, "Unsupported HFCLKIN: %u\n", freq);
1826 		return -EINVAL;
1827 	}
1828 
1829 	if ((freq / 1000) != twl4030->sysclk) {
1830 		dev_err(component->dev,
1831 			"Mismatch in HFCLKIN: %u (configured: %u)\n",
1832 			freq, twl4030->sysclk * 1000);
1833 		return -EINVAL;
1834 	}
1835 
1836 	return 0;
1837 }
1838 
1839 static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
1840 {
1841 	struct snd_soc_component *component = codec_dai->component;
1842 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1843 	u8 old_format, format;
1844 
1845 	/* get format */
1846 	old_format = twl4030_read(component, TWL4030_REG_AUDIO_IF);
1847 	format = old_format;
1848 
1849 	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
1850 	case SND_SOC_DAIFMT_CBP_CFP:
1851 		format &= ~(TWL4030_AIF_SLAVE_EN);
1852 		format &= ~(TWL4030_CLK256FS_EN);
1853 		break;
1854 	case SND_SOC_DAIFMT_CBC_CFC:
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(component, 0);
1882 			twl4030_write(component, TWL4030_REG_AUDIO_IF, format);
1883 			twl4030_codec_enable(component, 1);
1884 		} else {
1885 			twl4030_write(component, 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_component *component = dai->component;
1895 	u8 reg = twl4030_read(component, 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(component, 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_component *component, int direction,
1908 				 int enable)
1909 {
1910 	u8 reg, mask;
1911 
1912 	reg = twl4030_read(component, 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(component, 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_component *component = dai->component;
1931 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
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(component->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(component, TWL4030_REG_CODEC_MODE)
1948 		& TWL4030_OPT_MODE;
1949 
1950 	if (mode != TWL4030_OPTION_2) {
1951 		dev_err(component->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_component *component = dai->component;
1963 
1964 	/* Enable voice digital filters */
1965 	twl4030_voice_enable(component, 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_component *component = dai->component;
1973 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1974 	u8 old_mode, mode;
1975 
1976 	/* Enable voice digital filters */
1977 	twl4030_voice_enable(component, substream->stream, 1);
1978 
1979 	/* bit rate */
1980 	old_mode = twl4030_read(component,
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(component->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(component, 0);
2004 			twl4030_write(component, TWL4030_REG_CODEC_MODE, mode);
2005 			twl4030_codec_enable(component, 1);
2006 		} else {
2007 			twl4030_write(component, 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_component *component = codec_dai->component;
2018 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
2019 
2020 	if (freq != 26000000) {
2021 		dev_err(component->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(component->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_component *component = codec_dai->component;
2039 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
2040 	u8 old_format, format;
2041 
2042 	/* get format */
2043 	old_format = twl4030_read(component, TWL4030_REG_VOICE_IF);
2044 	format = old_format;
2045 
2046 	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
2047 	case SND_SOC_DAIFMT_CBP_CFP:
2048 		format &= ~(TWL4030_VIF_SLAVE_EN);
2049 		break;
2050 	case SND_SOC_DAIFMT_CBS_CFS:
2051 		format |= TWL4030_VIF_SLAVE_EN;
2052 		break;
2053 	default:
2054 		return -EINVAL;
2055 	}
2056 
2057 	/* clock inversion */
2058 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
2059 	case SND_SOC_DAIFMT_IB_NF:
2060 		format &= ~(TWL4030_VIF_FORMAT);
2061 		break;
2062 	case SND_SOC_DAIFMT_NB_IF:
2063 		format |= TWL4030_VIF_FORMAT;
2064 		break;
2065 	default:
2066 		return -EINVAL;
2067 	}
2068 
2069 	if (format != old_format) {
2070 		if (twl4030->codec_powered) {
2071 			/*
2072 			 * If the codec is powered, than we need to toggle the
2073 			 * codec power.
2074 			 */
2075 			twl4030_codec_enable(component, 0);
2076 			twl4030_write(component, TWL4030_REG_VOICE_IF, format);
2077 			twl4030_codec_enable(component, 1);
2078 		} else {
2079 			twl4030_write(component, TWL4030_REG_VOICE_IF, format);
2080 		}
2081 	}
2082 
2083 	return 0;
2084 }
2085 
2086 static int twl4030_voice_set_tristate(struct snd_soc_dai *dai, int tristate)
2087 {
2088 	struct snd_soc_component *component = dai->component;
2089 	u8 reg = twl4030_read(component, TWL4030_REG_VOICE_IF);
2090 
2091 	if (tristate)
2092 		reg |= TWL4030_VIF_TRI_EN;
2093 	else
2094 		reg &= ~TWL4030_VIF_TRI_EN;
2095 
2096 	return twl4030_write(component, TWL4030_REG_VOICE_IF, reg);
2097 }
2098 
2099 #define TWL4030_RATES	 (SNDRV_PCM_RATE_8000_48000)
2100 #define TWL4030_FORMATS	 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2101 
2102 static const struct snd_soc_dai_ops twl4030_dai_hifi_ops = {
2103 	.startup	= twl4030_startup,
2104 	.shutdown	= twl4030_shutdown,
2105 	.hw_params	= twl4030_hw_params,
2106 	.set_sysclk	= twl4030_set_dai_sysclk,
2107 	.set_fmt	= twl4030_set_dai_fmt,
2108 	.set_tristate	= twl4030_set_tristate,
2109 };
2110 
2111 static const struct snd_soc_dai_ops twl4030_dai_voice_ops = {
2112 	.startup	= twl4030_voice_startup,
2113 	.shutdown	= twl4030_voice_shutdown,
2114 	.hw_params	= twl4030_voice_hw_params,
2115 	.set_sysclk	= twl4030_voice_set_dai_sysclk,
2116 	.set_fmt	= twl4030_voice_set_dai_fmt,
2117 	.set_tristate	= twl4030_voice_set_tristate,
2118 };
2119 
2120 static struct snd_soc_dai_driver twl4030_dai[] = {
2121 {
2122 	.name = "twl4030-hifi",
2123 	.playback = {
2124 		.stream_name = "HiFi Playback",
2125 		.channels_min = 2,
2126 		.channels_max = 4,
2127 		.rates = TWL4030_RATES | SNDRV_PCM_RATE_96000,
2128 		.formats = TWL4030_FORMATS,
2129 		.sig_bits = 24,},
2130 	.capture = {
2131 		.stream_name = "HiFi Capture",
2132 		.channels_min = 2,
2133 		.channels_max = 4,
2134 		.rates = TWL4030_RATES,
2135 		.formats = TWL4030_FORMATS,
2136 		.sig_bits = 24,},
2137 	.ops = &twl4030_dai_hifi_ops,
2138 },
2139 {
2140 	.name = "twl4030-voice",
2141 	.playback = {
2142 		.stream_name = "Voice Playback",
2143 		.channels_min = 1,
2144 		.channels_max = 1,
2145 		.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2146 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
2147 	.capture = {
2148 		.stream_name = "Voice Capture",
2149 		.channels_min = 1,
2150 		.channels_max = 2,
2151 		.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2152 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
2153 	.ops = &twl4030_dai_voice_ops,
2154 },
2155 };
2156 
2157 static int twl4030_soc_probe(struct snd_soc_component *component)
2158 {
2159 	struct twl4030_priv *twl4030;
2160 
2161 	twl4030 = devm_kzalloc(component->dev, sizeof(struct twl4030_priv),
2162 			       GFP_KERNEL);
2163 	if (!twl4030)
2164 		return -ENOMEM;
2165 	snd_soc_component_set_drvdata(component, twl4030);
2166 	/* Set the defaults, and power up the codec */
2167 	twl4030->sysclk = twl4030_audio_get_mclk() / 1000;
2168 
2169 	twl4030_init_chip(component);
2170 
2171 	return 0;
2172 }
2173 
2174 static void twl4030_soc_remove(struct snd_soc_component *component)
2175 {
2176 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
2177 	struct twl4030_board_params *board_params = twl4030->board_params;
2178 
2179 	if (board_params && board_params->hs_extmute &&
2180 	    gpio_is_valid(board_params->hs_extmute_gpio))
2181 		gpio_free(board_params->hs_extmute_gpio);
2182 }
2183 
2184 static const struct snd_soc_component_driver soc_component_dev_twl4030 = {
2185 	.probe			= twl4030_soc_probe,
2186 	.remove			= twl4030_soc_remove,
2187 	.read			= twl4030_read,
2188 	.write			= twl4030_write,
2189 	.set_bias_level		= twl4030_set_bias_level,
2190 	.controls		= twl4030_snd_controls,
2191 	.num_controls		= ARRAY_SIZE(twl4030_snd_controls),
2192 	.dapm_widgets		= twl4030_dapm_widgets,
2193 	.num_dapm_widgets	= ARRAY_SIZE(twl4030_dapm_widgets),
2194 	.dapm_routes		= intercon,
2195 	.num_dapm_routes	= ARRAY_SIZE(intercon),
2196 	.use_pmdown_time	= 1,
2197 	.endianness		= 1,
2198 };
2199 
2200 static int twl4030_codec_probe(struct platform_device *pdev)
2201 {
2202 	return devm_snd_soc_register_component(&pdev->dev,
2203 				      &soc_component_dev_twl4030,
2204 				      twl4030_dai, ARRAY_SIZE(twl4030_dai));
2205 }
2206 
2207 MODULE_ALIAS("platform:twl4030-codec");
2208 
2209 static struct platform_driver twl4030_codec_driver = {
2210 	.probe		= twl4030_codec_probe,
2211 	.driver		= {
2212 		.name	= "twl4030-codec",
2213 	},
2214 };
2215 
2216 module_platform_driver(twl4030_codec_driver);
2217 
2218 MODULE_DESCRIPTION("ASoC TWL4030 codec driver");
2219 MODULE_AUTHOR("Steve Sakoman");
2220 MODULE_LICENSE("GPL");
2221