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ASoC: TWL4030: Add VDL analog bypass
[deliverable/linux.git] / sound / soc / codecs / twl4030.c
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/i2c/twl4030.h>
30 #include <sound/core.h>
31 #include <sound/pcm.h>
32 #include <sound/pcm_params.h>
33 #include <sound/soc.h>
34 #include <sound/soc-dapm.h>
35 #include <sound/initval.h>
36 #include <sound/tlv.h>
37
38 #include "twl4030.h"
39
40 /*
41 * twl4030 register cache & default register settings
42 */
43 static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = {
44 0x00, /* this register not used */
45 0x91, /* REG_CODEC_MODE (0x1) */
46 0xc3, /* REG_OPTION (0x2) */
47 0x00, /* REG_UNKNOWN (0x3) */
48 0x00, /* REG_MICBIAS_CTL (0x4) */
49 0x20, /* REG_ANAMICL (0x5) */
50 0x00, /* REG_ANAMICR (0x6) */
51 0x00, /* REG_AVADC_CTL (0x7) */
52 0x00, /* REG_ADCMICSEL (0x8) */
53 0x00, /* REG_DIGMIXING (0x9) */
54 0x0c, /* REG_ATXL1PGA (0xA) */
55 0x0c, /* REG_ATXR1PGA (0xB) */
56 0x00, /* REG_AVTXL2PGA (0xC) */
57 0x00, /* REG_AVTXR2PGA (0xD) */
58 0x01, /* REG_AUDIO_IF (0xE) */
59 0x00, /* REG_VOICE_IF (0xF) */
60 0x00, /* REG_ARXR1PGA (0x10) */
61 0x00, /* REG_ARXL1PGA (0x11) */
62 0x6c, /* REG_ARXR2PGA (0x12) */
63 0x6c, /* REG_ARXL2PGA (0x13) */
64 0x00, /* REG_VRXPGA (0x14) */
65 0x00, /* REG_VSTPGA (0x15) */
66 0x00, /* REG_VRX2ARXPGA (0x16) */
67 0x0c, /* REG_AVDAC_CTL (0x17) */
68 0x00, /* REG_ARX2VTXPGA (0x18) */
69 0x00, /* REG_ARXL1_APGA_CTL (0x19) */
70 0x00, /* REG_ARXR1_APGA_CTL (0x1A) */
71 0x4b, /* REG_ARXL2_APGA_CTL (0x1B) */
72 0x4b, /* REG_ARXR2_APGA_CTL (0x1C) */
73 0x00, /* REG_ATX2ARXPGA (0x1D) */
74 0x00, /* REG_BT_IF (0x1E) */
75 0x00, /* REG_BTPGA (0x1F) */
76 0x00, /* REG_BTSTPGA (0x20) */
77 0x00, /* REG_EAR_CTL (0x21) */
78 0x24, /* REG_HS_SEL (0x22) */
79 0x0a, /* REG_HS_GAIN_SET (0x23) */
80 0x00, /* REG_HS_POPN_SET (0x24) */
81 0x00, /* REG_PREDL_CTL (0x25) */
82 0x00, /* REG_PREDR_CTL (0x26) */
83 0x00, /* REG_PRECKL_CTL (0x27) */
84 0x00, /* REG_PRECKR_CTL (0x28) */
85 0x00, /* REG_HFL_CTL (0x29) */
86 0x00, /* REG_HFR_CTL (0x2A) */
87 0x00, /* REG_ALC_CTL (0x2B) */
88 0x00, /* REG_ALC_SET1 (0x2C) */
89 0x00, /* REG_ALC_SET2 (0x2D) */
90 0x00, /* REG_BOOST_CTL (0x2E) */
91 0x00, /* REG_SOFTVOL_CTL (0x2F) */
92 0x00, /* REG_DTMF_FREQSEL (0x30) */
93 0x00, /* REG_DTMF_TONEXT1H (0x31) */
94 0x00, /* REG_DTMF_TONEXT1L (0x32) */
95 0x00, /* REG_DTMF_TONEXT2H (0x33) */
96 0x00, /* REG_DTMF_TONEXT2L (0x34) */
97 0x00, /* REG_DTMF_TONOFF (0x35) */
98 0x00, /* REG_DTMF_WANONOFF (0x36) */
99 0x00, /* REG_I2S_RX_SCRAMBLE_H (0x37) */
100 0x00, /* REG_I2S_RX_SCRAMBLE_M (0x38) */
101 0x00, /* REG_I2S_RX_SCRAMBLE_L (0x39) */
102 0x16, /* REG_APLL_CTL (0x3A) */
103 0x00, /* REG_DTMF_CTL (0x3B) */
104 0x00, /* REG_DTMF_PGA_CTL2 (0x3C) */
105 0x00, /* REG_DTMF_PGA_CTL1 (0x3D) */
106 0x00, /* REG_MISC_SET_1 (0x3E) */
107 0x00, /* REG_PCMBTMUX (0x3F) */
108 0x00, /* not used (0x40) */
109 0x00, /* not used (0x41) */
110 0x00, /* not used (0x42) */
111 0x00, /* REG_RX_PATH_SEL (0x43) */
112 0x00, /* REG_VDL_APGA_CTL (0x44) */
113 0x00, /* REG_VIBRA_CTL (0x45) */
114 0x00, /* REG_VIBRA_SET (0x46) */
115 0x00, /* REG_VIBRA_PWM_SET (0x47) */
116 0x00, /* REG_ANAMIC_GAIN (0x48) */
117 0x00, /* REG_MISC_SET_2 (0x49) */
118 };
119
120 /* codec private data */
121 struct twl4030_priv {
122 unsigned int bypass_state;
123 unsigned int codec_powered;
124 unsigned int codec_muted;
125
126 struct snd_pcm_substream *master_substream;
127 struct snd_pcm_substream *slave_substream;
128
129 unsigned int configured;
130 unsigned int rate;
131 unsigned int sample_bits;
132 unsigned int channels;
133 };
134
135 /*
136 * read twl4030 register cache
137 */
138 static inline unsigned int twl4030_read_reg_cache(struct snd_soc_codec *codec,
139 unsigned int reg)
140 {
141 u8 *cache = codec->reg_cache;
142
143 if (reg >= TWL4030_CACHEREGNUM)
144 return -EIO;
145
146 return cache[reg];
147 }
148
149 /*
150 * write twl4030 register cache
151 */
152 static inline void twl4030_write_reg_cache(struct snd_soc_codec *codec,
153 u8 reg, u8 value)
154 {
155 u8 *cache = codec->reg_cache;
156
157 if (reg >= TWL4030_CACHEREGNUM)
158 return;
159 cache[reg] = value;
160 }
161
162 /*
163 * write to the twl4030 register space
164 */
165 static int twl4030_write(struct snd_soc_codec *codec,
166 unsigned int reg, unsigned int value)
167 {
168 twl4030_write_reg_cache(codec, reg, value);
169 return twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg);
170 }
171
172 static void twl4030_codec_enable(struct snd_soc_codec *codec, int enable)
173 {
174 struct twl4030_priv *twl4030 = codec->private_data;
175 u8 mode;
176
177 if (enable == twl4030->codec_powered)
178 return;
179
180 mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE);
181 if (enable)
182 mode |= TWL4030_CODECPDZ;
183 else
184 mode &= ~TWL4030_CODECPDZ;
185
186 twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
187 twl4030->codec_powered = enable;
188
189 /* REVISIT: this delay is present in TI sample drivers */
190 /* but there seems to be no TRM requirement for it */
191 udelay(10);
192 }
193
194 static void twl4030_init_chip(struct snd_soc_codec *codec)
195 {
196 int i;
197
198 /* clear CODECPDZ prior to setting register defaults */
199 twl4030_codec_enable(codec, 0);
200
201 /* set all audio section registers to reasonable defaults */
202 for (i = TWL4030_REG_OPTION; i <= TWL4030_REG_MISC_SET_2; i++)
203 twl4030_write(codec, i, twl4030_reg[i]);
204
205 }
206
207 static void twl4030_codec_mute(struct snd_soc_codec *codec, int mute)
208 {
209 struct twl4030_priv *twl4030 = codec->private_data;
210 u8 reg_val;
211
212 if (mute == twl4030->codec_muted)
213 return;
214
215 if (mute) {
216 /* Bypass the reg_cache and mute the volumes
217 * Headset mute is done in it's own event handler
218 * Things to mute: Earpiece, PreDrivL/R, CarkitL/R
219 */
220 reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_EAR_CTL);
221 twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
222 reg_val & (~TWL4030_EAR_GAIN),
223 TWL4030_REG_EAR_CTL);
224
225 reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_PREDL_CTL);
226 twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
227 reg_val & (~TWL4030_PREDL_GAIN),
228 TWL4030_REG_PREDL_CTL);
229 reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_PREDR_CTL);
230 twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
231 reg_val & (~TWL4030_PREDR_GAIN),
232 TWL4030_REG_PREDL_CTL);
233
234 reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_PRECKL_CTL);
235 twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
236 reg_val & (~TWL4030_PRECKL_GAIN),
237 TWL4030_REG_PRECKL_CTL);
238 reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_PRECKR_CTL);
239 twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
240 reg_val & (~TWL4030_PRECKL_GAIN),
241 TWL4030_REG_PRECKR_CTL);
242
243 /* Disable PLL */
244 reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL);
245 reg_val &= ~TWL4030_APLL_EN;
246 twl4030_write(codec, TWL4030_REG_APLL_CTL, reg_val);
247 } else {
248 /* Restore the volumes
249 * Headset mute is done in it's own event handler
250 * Things to restore: Earpiece, PreDrivL/R, CarkitL/R
251 */
252 twl4030_write(codec, TWL4030_REG_EAR_CTL,
253 twl4030_read_reg_cache(codec, TWL4030_REG_EAR_CTL));
254
255 twl4030_write(codec, TWL4030_REG_PREDL_CTL,
256 twl4030_read_reg_cache(codec, TWL4030_REG_PREDL_CTL));
257 twl4030_write(codec, TWL4030_REG_PREDR_CTL,
258 twl4030_read_reg_cache(codec, TWL4030_REG_PREDR_CTL));
259
260 twl4030_write(codec, TWL4030_REG_PRECKL_CTL,
261 twl4030_read_reg_cache(codec, TWL4030_REG_PRECKL_CTL));
262 twl4030_write(codec, TWL4030_REG_PRECKR_CTL,
263 twl4030_read_reg_cache(codec, TWL4030_REG_PRECKR_CTL));
264
265 /* Enable PLL */
266 reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL);
267 reg_val |= TWL4030_APLL_EN;
268 twl4030_write(codec, TWL4030_REG_APLL_CTL, reg_val);
269 }
270
271 twl4030->codec_muted = mute;
272 }
273
274 static void twl4030_power_up(struct snd_soc_codec *codec)
275 {
276 struct twl4030_priv *twl4030 = codec->private_data;
277 u8 anamicl, regmisc1, byte;
278 int i = 0;
279
280 if (twl4030->codec_powered)
281 return;
282
283 /* set CODECPDZ to turn on codec */
284 twl4030_codec_enable(codec, 1);
285
286 /* initiate offset cancellation */
287 anamicl = twl4030_read_reg_cache(codec, TWL4030_REG_ANAMICL);
288 twl4030_write(codec, TWL4030_REG_ANAMICL,
289 anamicl | TWL4030_CNCL_OFFSET_START);
290
291 /* wait for offset cancellation to complete */
292 do {
293 /* this takes a little while, so don't slam i2c */
294 udelay(2000);
295 twl4030_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte,
296 TWL4030_REG_ANAMICL);
297 } while ((i++ < 100) &&
298 ((byte & TWL4030_CNCL_OFFSET_START) ==
299 TWL4030_CNCL_OFFSET_START));
300
301 /* Make sure that the reg_cache has the same value as the HW */
302 twl4030_write_reg_cache(codec, TWL4030_REG_ANAMICL, byte);
303
304 /* anti-pop when changing analog gain */
305 regmisc1 = twl4030_read_reg_cache(codec, TWL4030_REG_MISC_SET_1);
306 twl4030_write(codec, TWL4030_REG_MISC_SET_1,
307 regmisc1 | TWL4030_SMOOTH_ANAVOL_EN);
308
309 /* toggle CODECPDZ as per TRM */
310 twl4030_codec_enable(codec, 0);
311 twl4030_codec_enable(codec, 1);
312 }
313
314 /*
315 * Unconditional power down
316 */
317 static void twl4030_power_down(struct snd_soc_codec *codec)
318 {
319 /* power down */
320 twl4030_codec_enable(codec, 0);
321 }
322
323 /* Earpiece */
324 static const struct snd_kcontrol_new twl4030_dapm_earpiece_controls[] = {
325 SOC_DAPM_SINGLE("Voice", TWL4030_REG_EAR_CTL, 0, 1, 0),
326 SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_EAR_CTL, 1, 1, 0),
327 SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_EAR_CTL, 2, 1, 0),
328 SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_EAR_CTL, 3, 1, 0),
329 };
330
331 /* PreDrive Left */
332 static const struct snd_kcontrol_new twl4030_dapm_predrivel_controls[] = {
333 SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDL_CTL, 0, 1, 0),
334 SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PREDL_CTL, 1, 1, 0),
335 SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDL_CTL, 2, 1, 0),
336 SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDL_CTL, 3, 1, 0),
337 };
338
339 /* PreDrive Right */
340 static const struct snd_kcontrol_new twl4030_dapm_predriver_controls[] = {
341 SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDR_CTL, 0, 1, 0),
342 SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PREDR_CTL, 1, 1, 0),
343 SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDR_CTL, 2, 1, 0),
344 SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDR_CTL, 3, 1, 0),
345 };
346
347 /* Headset Left */
348 static const struct snd_kcontrol_new twl4030_dapm_hsol_controls[] = {
349 SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 0, 1, 0),
350 SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_HS_SEL, 1, 1, 0),
351 SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_HS_SEL, 2, 1, 0),
352 };
353
354 /* Headset Right */
355 static const struct snd_kcontrol_new twl4030_dapm_hsor_controls[] = {
356 SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 3, 1, 0),
357 SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_HS_SEL, 4, 1, 0),
358 SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_HS_SEL, 5, 1, 0),
359 };
360
361 /* Carkit Left */
362 static const struct snd_kcontrol_new twl4030_dapm_carkitl_controls[] = {
363 SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKL_CTL, 0, 1, 0),
364 SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PRECKL_CTL, 1, 1, 0),
365 SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PRECKL_CTL, 2, 1, 0),
366 };
367
368 /* Carkit Right */
369 static const struct snd_kcontrol_new twl4030_dapm_carkitr_controls[] = {
370 SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKR_CTL, 0, 1, 0),
371 SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PRECKR_CTL, 1, 1, 0),
372 SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PRECKR_CTL, 2, 1, 0),
373 };
374
375 /* Handsfree Left */
376 static const char *twl4030_handsfreel_texts[] =
377 {"Voice", "AudioL1", "AudioL2", "AudioR2"};
378
379 static const struct soc_enum twl4030_handsfreel_enum =
380 SOC_ENUM_SINGLE(TWL4030_REG_HFL_CTL, 0,
381 ARRAY_SIZE(twl4030_handsfreel_texts),
382 twl4030_handsfreel_texts);
383
384 static const struct snd_kcontrol_new twl4030_dapm_handsfreel_control =
385 SOC_DAPM_ENUM("Route", twl4030_handsfreel_enum);
386
387 /* Handsfree Right */
388 static const char *twl4030_handsfreer_texts[] =
389 {"Voice", "AudioR1", "AudioR2", "AudioL2"};
390
391 static const struct soc_enum twl4030_handsfreer_enum =
392 SOC_ENUM_SINGLE(TWL4030_REG_HFR_CTL, 0,
393 ARRAY_SIZE(twl4030_handsfreer_texts),
394 twl4030_handsfreer_texts);
395
396 static const struct snd_kcontrol_new twl4030_dapm_handsfreer_control =
397 SOC_DAPM_ENUM("Route", twl4030_handsfreer_enum);
398
399 /* Left analog microphone selection */
400 static const char *twl4030_analoglmic_texts[] =
401 {"Off", "Main mic", "Headset mic", "AUXL", "Carkit mic"};
402
403 static const unsigned int twl4030_analoglmic_values[] =
404 {0x0, 0x1, 0x2, 0x4, 0x8};
405
406 static const struct soc_enum twl4030_analoglmic_enum =
407 SOC_VALUE_ENUM_SINGLE(TWL4030_REG_ANAMICL, 0, 0xf,
408 ARRAY_SIZE(twl4030_analoglmic_texts),
409 twl4030_analoglmic_texts,
410 twl4030_analoglmic_values);
411
412 static const struct snd_kcontrol_new twl4030_dapm_analoglmic_control =
413 SOC_DAPM_VALUE_ENUM("Route", twl4030_analoglmic_enum);
414
415 /* Right analog microphone selection */
416 static const char *twl4030_analogrmic_texts[] =
417 {"Off", "Sub mic", "AUXR"};
418
419 static const unsigned int twl4030_analogrmic_values[] =
420 {0x0, 0x1, 0x4};
421
422 static const struct soc_enum twl4030_analogrmic_enum =
423 SOC_VALUE_ENUM_SINGLE(TWL4030_REG_ANAMICR, 0, 0x5,
424 ARRAY_SIZE(twl4030_analogrmic_texts),
425 twl4030_analogrmic_texts,
426 twl4030_analogrmic_values);
427
428 static const struct snd_kcontrol_new twl4030_dapm_analogrmic_control =
429 SOC_DAPM_VALUE_ENUM("Route", twl4030_analogrmic_enum);
430
431 /* TX1 L/R Analog/Digital microphone selection */
432 static const char *twl4030_micpathtx1_texts[] =
433 {"Analog", "Digimic0"};
434
435 static const struct soc_enum twl4030_micpathtx1_enum =
436 SOC_ENUM_SINGLE(TWL4030_REG_ADCMICSEL, 0,
437 ARRAY_SIZE(twl4030_micpathtx1_texts),
438 twl4030_micpathtx1_texts);
439
440 static const struct snd_kcontrol_new twl4030_dapm_micpathtx1_control =
441 SOC_DAPM_ENUM("Route", twl4030_micpathtx1_enum);
442
443 /* TX2 L/R Analog/Digital microphone selection */
444 static const char *twl4030_micpathtx2_texts[] =
445 {"Analog", "Digimic1"};
446
447 static const struct soc_enum twl4030_micpathtx2_enum =
448 SOC_ENUM_SINGLE(TWL4030_REG_ADCMICSEL, 2,
449 ARRAY_SIZE(twl4030_micpathtx2_texts),
450 twl4030_micpathtx2_texts);
451
452 static const struct snd_kcontrol_new twl4030_dapm_micpathtx2_control =
453 SOC_DAPM_ENUM("Route", twl4030_micpathtx2_enum);
454
455 /* Analog bypass for AudioR1 */
456 static const struct snd_kcontrol_new twl4030_dapm_abypassr1_control =
457 SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR1_APGA_CTL, 2, 1, 0);
458
459 /* Analog bypass for AudioL1 */
460 static const struct snd_kcontrol_new twl4030_dapm_abypassl1_control =
461 SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL1_APGA_CTL, 2, 1, 0);
462
463 /* Analog bypass for AudioR2 */
464 static const struct snd_kcontrol_new twl4030_dapm_abypassr2_control =
465 SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR2_APGA_CTL, 2, 1, 0);
466
467 /* Analog bypass for AudioL2 */
468 static const struct snd_kcontrol_new twl4030_dapm_abypassl2_control =
469 SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL2_APGA_CTL, 2, 1, 0);
470
471 /* Analog bypass for Voice */
472 static const struct snd_kcontrol_new twl4030_dapm_abypassv_control =
473 SOC_DAPM_SINGLE("Switch", TWL4030_REG_VDL_APGA_CTL, 2, 1, 0);
474
475 /* Digital bypass gain, 0 mutes the bypass */
476 static const unsigned int twl4030_dapm_dbypass_tlv[] = {
477 TLV_DB_RANGE_HEAD(2),
478 0, 3, TLV_DB_SCALE_ITEM(-2400, 0, 1),
479 4, 7, TLV_DB_SCALE_ITEM(-1800, 600, 0),
480 };
481
482 /* Digital bypass left (TX1L -> RX2L) */
483 static const struct snd_kcontrol_new twl4030_dapm_dbypassl_control =
484 SOC_DAPM_SINGLE_TLV("Volume",
485 TWL4030_REG_ATX2ARXPGA, 3, 7, 0,
486 twl4030_dapm_dbypass_tlv);
487
488 /* Digital bypass right (TX1R -> RX2R) */
489 static const struct snd_kcontrol_new twl4030_dapm_dbypassr_control =
490 SOC_DAPM_SINGLE_TLV("Volume",
491 TWL4030_REG_ATX2ARXPGA, 0, 7, 0,
492 twl4030_dapm_dbypass_tlv);
493
494 static int micpath_event(struct snd_soc_dapm_widget *w,
495 struct snd_kcontrol *kcontrol, int event)
496 {
497 struct soc_enum *e = (struct soc_enum *)w->kcontrols->private_value;
498 unsigned char adcmicsel, micbias_ctl;
499
500 adcmicsel = twl4030_read_reg_cache(w->codec, TWL4030_REG_ADCMICSEL);
501 micbias_ctl = twl4030_read_reg_cache(w->codec, TWL4030_REG_MICBIAS_CTL);
502 /* Prepare the bits for the given TX path:
503 * shift_l == 0: TX1 microphone path
504 * shift_l == 2: TX2 microphone path */
505 if (e->shift_l) {
506 /* TX2 microphone path */
507 if (adcmicsel & TWL4030_TX2IN_SEL)
508 micbias_ctl |= TWL4030_MICBIAS2_CTL; /* digimic */
509 else
510 micbias_ctl &= ~TWL4030_MICBIAS2_CTL;
511 } else {
512 /* TX1 microphone path */
513 if (adcmicsel & TWL4030_TX1IN_SEL)
514 micbias_ctl |= TWL4030_MICBIAS1_CTL; /* digimic */
515 else
516 micbias_ctl &= ~TWL4030_MICBIAS1_CTL;
517 }
518
519 twl4030_write(w->codec, TWL4030_REG_MICBIAS_CTL, micbias_ctl);
520
521 return 0;
522 }
523
524 static int handsfree_event(struct snd_soc_dapm_widget *w,
525 struct snd_kcontrol *kcontrol, int event)
526 {
527 struct soc_enum *e = (struct soc_enum *)w->kcontrols->private_value;
528 unsigned char hs_ctl;
529
530 hs_ctl = twl4030_read_reg_cache(w->codec, e->reg);
531
532 if (hs_ctl & TWL4030_HF_CTL_REF_EN) {
533 hs_ctl |= TWL4030_HF_CTL_RAMP_EN;
534 twl4030_write(w->codec, e->reg, hs_ctl);
535 hs_ctl |= TWL4030_HF_CTL_LOOP_EN;
536 twl4030_write(w->codec, e->reg, hs_ctl);
537 hs_ctl |= TWL4030_HF_CTL_HB_EN;
538 twl4030_write(w->codec, e->reg, hs_ctl);
539 } else {
540 hs_ctl &= ~(TWL4030_HF_CTL_RAMP_EN | TWL4030_HF_CTL_LOOP_EN
541 | TWL4030_HF_CTL_HB_EN);
542 twl4030_write(w->codec, e->reg, hs_ctl);
543 }
544
545 return 0;
546 }
547
548 static int headsetl_event(struct snd_soc_dapm_widget *w,
549 struct snd_kcontrol *kcontrol, int event)
550 {
551 unsigned char hs_gain, hs_pop;
552
553 /* Save the current volume */
554 hs_gain = twl4030_read_reg_cache(w->codec, TWL4030_REG_HS_GAIN_SET);
555 hs_pop = twl4030_read_reg_cache(w->codec, TWL4030_REG_HS_POPN_SET);
556
557 switch (event) {
558 case SND_SOC_DAPM_POST_PMU:
559 /* Do the anti-pop/bias ramp enable according to the TRM */
560 hs_pop |= TWL4030_VMID_EN;
561 twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop);
562 /* Is this needed? Can we just use whatever gain here? */
563 twl4030_write(w->codec, TWL4030_REG_HS_GAIN_SET,
564 (hs_gain & (~0x0f)) | 0x0a);
565 hs_pop |= TWL4030_RAMP_EN;
566 twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop);
567
568 /* Restore the original volume */
569 twl4030_write(w->codec, TWL4030_REG_HS_GAIN_SET, hs_gain);
570 break;
571 case SND_SOC_DAPM_POST_PMD:
572 /* Do the anti-pop/bias ramp disable according to the TRM */
573 hs_pop &= ~TWL4030_RAMP_EN;
574 twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop);
575 /* Bypass the reg_cache to mute the headset */
576 twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
577 hs_gain & (~0x0f),
578 TWL4030_REG_HS_GAIN_SET);
579 hs_pop &= ~TWL4030_VMID_EN;
580 twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop);
581 break;
582 }
583 return 0;
584 }
585
586 static int bypass_event(struct snd_soc_dapm_widget *w,
587 struct snd_kcontrol *kcontrol, int event)
588 {
589 struct soc_mixer_control *m =
590 (struct soc_mixer_control *)w->kcontrols->private_value;
591 struct twl4030_priv *twl4030 = w->codec->private_data;
592 unsigned char reg, misc;
593
594 reg = twl4030_read_reg_cache(w->codec, m->reg);
595
596 if (m->reg <= TWL4030_REG_ARXR2_APGA_CTL) {
597 /* Analog bypass */
598 if (reg & (1 << m->shift))
599 twl4030->bypass_state |=
600 (1 << (m->reg - TWL4030_REG_ARXL1_APGA_CTL));
601 else
602 twl4030->bypass_state &=
603 ~(1 << (m->reg - TWL4030_REG_ARXL1_APGA_CTL));
604 } else if (m->reg == TWL4030_REG_VDL_APGA_CTL) {
605 /* Analog voice bypass */
606 if (reg & (1 << m->shift))
607 twl4030->bypass_state |= (1 << 4);
608 else
609 twl4030->bypass_state &= ~(1 << 4);
610 } else {
611 /* Digital bypass */
612 if (reg & (0x7 << m->shift))
613 twl4030->bypass_state |= (1 << (m->shift ? 6 : 5));
614 else
615 twl4030->bypass_state &= ~(1 << (m->shift ? 6 : 5));
616 }
617
618 /* Enable master analog loopback mode if any analog switch is enabled*/
619 misc = twl4030_read_reg_cache(w->codec, TWL4030_REG_MISC_SET_1);
620 if (twl4030->bypass_state & 0x1F)
621 misc |= TWL4030_FMLOOP_EN;
622 else
623 misc &= ~TWL4030_FMLOOP_EN;
624 twl4030_write(w->codec, TWL4030_REG_MISC_SET_1, misc);
625
626 if (w->codec->bias_level == SND_SOC_BIAS_STANDBY) {
627 if (twl4030->bypass_state)
628 twl4030_codec_mute(w->codec, 0);
629 else
630 twl4030_codec_mute(w->codec, 1);
631 }
632 return 0;
633 }
634
635 /*
636 * Some of the gain controls in TWL (mostly those which are associated with
637 * the outputs) are implemented in an interesting way:
638 * 0x0 : Power down (mute)
639 * 0x1 : 6dB
640 * 0x2 : 0 dB
641 * 0x3 : -6 dB
642 * Inverting not going to help with these.
643 * Custom volsw and volsw_2r get/put functions to handle these gain bits.
644 */
645 #define SOC_DOUBLE_TLV_TWL4030(xname, xreg, shift_left, shift_right, xmax,\
646 xinvert, tlv_array) \
647 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
648 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
649 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
650 .tlv.p = (tlv_array), \
651 .info = snd_soc_info_volsw, \
652 .get = snd_soc_get_volsw_twl4030, \
653 .put = snd_soc_put_volsw_twl4030, \
654 .private_value = (unsigned long)&(struct soc_mixer_control) \
655 {.reg = xreg, .shift = shift_left, .rshift = shift_right,\
656 .max = xmax, .invert = xinvert} }
657 #define SOC_DOUBLE_R_TLV_TWL4030(xname, reg_left, reg_right, xshift, xmax,\
658 xinvert, tlv_array) \
659 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
660 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
661 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
662 .tlv.p = (tlv_array), \
663 .info = snd_soc_info_volsw_2r, \
664 .get = snd_soc_get_volsw_r2_twl4030,\
665 .put = snd_soc_put_volsw_r2_twl4030, \
666 .private_value = (unsigned long)&(struct soc_mixer_control) \
667 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
668 .rshift = xshift, .max = xmax, .invert = xinvert} }
669 #define SOC_SINGLE_TLV_TWL4030(xname, xreg, xshift, xmax, xinvert, tlv_array) \
670 SOC_DOUBLE_TLV_TWL4030(xname, xreg, xshift, xshift, xmax, \
671 xinvert, tlv_array)
672
673 static int snd_soc_get_volsw_twl4030(struct snd_kcontrol *kcontrol,
674 struct snd_ctl_elem_value *ucontrol)
675 {
676 struct soc_mixer_control *mc =
677 (struct soc_mixer_control *)kcontrol->private_value;
678 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
679 unsigned int reg = mc->reg;
680 unsigned int shift = mc->shift;
681 unsigned int rshift = mc->rshift;
682 int max = mc->max;
683 int mask = (1 << fls(max)) - 1;
684
685 ucontrol->value.integer.value[0] =
686 (snd_soc_read(codec, reg) >> shift) & mask;
687 if (ucontrol->value.integer.value[0])
688 ucontrol->value.integer.value[0] =
689 max + 1 - ucontrol->value.integer.value[0];
690
691 if (shift != rshift) {
692 ucontrol->value.integer.value[1] =
693 (snd_soc_read(codec, reg) >> rshift) & mask;
694 if (ucontrol->value.integer.value[1])
695 ucontrol->value.integer.value[1] =
696 max + 1 - ucontrol->value.integer.value[1];
697 }
698
699 return 0;
700 }
701
702 static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol,
703 struct snd_ctl_elem_value *ucontrol)
704 {
705 struct soc_mixer_control *mc =
706 (struct soc_mixer_control *)kcontrol->private_value;
707 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
708 unsigned int reg = mc->reg;
709 unsigned int shift = mc->shift;
710 unsigned int rshift = mc->rshift;
711 int max = mc->max;
712 int mask = (1 << fls(max)) - 1;
713 unsigned short val, val2, val_mask;
714
715 val = (ucontrol->value.integer.value[0] & mask);
716
717 val_mask = mask << shift;
718 if (val)
719 val = max + 1 - val;
720 val = val << shift;
721 if (shift != rshift) {
722 val2 = (ucontrol->value.integer.value[1] & mask);
723 val_mask |= mask << rshift;
724 if (val2)
725 val2 = max + 1 - val2;
726 val |= val2 << rshift;
727 }
728 return snd_soc_update_bits(codec, reg, val_mask, val);
729 }
730
731 static int snd_soc_get_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
732 struct snd_ctl_elem_value *ucontrol)
733 {
734 struct soc_mixer_control *mc =
735 (struct soc_mixer_control *)kcontrol->private_value;
736 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
737 unsigned int reg = mc->reg;
738 unsigned int reg2 = mc->rreg;
739 unsigned int shift = mc->shift;
740 int max = mc->max;
741 int mask = (1<<fls(max))-1;
742
743 ucontrol->value.integer.value[0] =
744 (snd_soc_read(codec, reg) >> shift) & mask;
745 ucontrol->value.integer.value[1] =
746 (snd_soc_read(codec, reg2) >> shift) & mask;
747
748 if (ucontrol->value.integer.value[0])
749 ucontrol->value.integer.value[0] =
750 max + 1 - ucontrol->value.integer.value[0];
751 if (ucontrol->value.integer.value[1])
752 ucontrol->value.integer.value[1] =
753 max + 1 - ucontrol->value.integer.value[1];
754
755 return 0;
756 }
757
758 static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
759 struct snd_ctl_elem_value *ucontrol)
760 {
761 struct soc_mixer_control *mc =
762 (struct soc_mixer_control *)kcontrol->private_value;
763 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
764 unsigned int reg = mc->reg;
765 unsigned int reg2 = mc->rreg;
766 unsigned int shift = mc->shift;
767 int max = mc->max;
768 int mask = (1 << fls(max)) - 1;
769 int err;
770 unsigned short val, val2, val_mask;
771
772 val_mask = mask << shift;
773 val = (ucontrol->value.integer.value[0] & mask);
774 val2 = (ucontrol->value.integer.value[1] & mask);
775
776 if (val)
777 val = max + 1 - val;
778 if (val2)
779 val2 = max + 1 - val2;
780
781 val = val << shift;
782 val2 = val2 << shift;
783
784 err = snd_soc_update_bits(codec, reg, val_mask, val);
785 if (err < 0)
786 return err;
787
788 err = snd_soc_update_bits(codec, reg2, val_mask, val2);
789 return err;
790 }
791
792 /*
793 * FGAIN volume control:
794 * from -62 to 0 dB in 1 dB steps (mute instead of -63 dB)
795 */
796 static DECLARE_TLV_DB_SCALE(digital_fine_tlv, -6300, 100, 1);
797
798 /*
799 * CGAIN volume control:
800 * 0 dB to 12 dB in 6 dB steps
801 * value 2 and 3 means 12 dB
802 */
803 static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0, 600, 0);
804
805 /*
806 * Voice Downlink GAIN volume control:
807 * from -37 to 12 dB in 1 dB steps (mute instead of -37 dB)
808 */
809 static DECLARE_TLV_DB_SCALE(digital_voice_downlink_tlv, -3700, 100, 1);
810
811 /*
812 * Analog playback gain
813 * -24 dB to 12 dB in 2 dB steps
814 */
815 static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0);
816
817 /*
818 * Gain controls tied to outputs
819 * -6 dB to 6 dB in 6 dB steps (mute instead of -12)
820 */
821 static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1);
822
823 /*
824 * Gain control for earpiece amplifier
825 * 0 dB to 12 dB in 6 dB steps (mute instead of -6)
826 */
827 static DECLARE_TLV_DB_SCALE(output_ear_tvl, -600, 600, 1);
828
829 /*
830 * Capture gain after the ADCs
831 * from 0 dB to 31 dB in 1 dB steps
832 */
833 static DECLARE_TLV_DB_SCALE(digital_capture_tlv, 0, 100, 0);
834
835 /*
836 * Gain control for input amplifiers
837 * 0 dB to 30 dB in 6 dB steps
838 */
839 static DECLARE_TLV_DB_SCALE(input_gain_tlv, 0, 600, 0);
840
841 static const char *twl4030_rampdelay_texts[] = {
842 "27/20/14 ms", "55/40/27 ms", "109/81/55 ms", "218/161/109 ms",
843 "437/323/218 ms", "874/645/437 ms", "1748/1291/874 ms",
844 "3495/2581/1748 ms"
845 };
846
847 static const struct soc_enum twl4030_rampdelay_enum =
848 SOC_ENUM_SINGLE(TWL4030_REG_HS_POPN_SET, 2,
849 ARRAY_SIZE(twl4030_rampdelay_texts),
850 twl4030_rampdelay_texts);
851
852 static const struct snd_kcontrol_new twl4030_snd_controls[] = {
853 /* Common playback gain controls */
854 SOC_DOUBLE_R_TLV("DAC1 Digital Fine Playback Volume",
855 TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
856 0, 0x3f, 0, digital_fine_tlv),
857 SOC_DOUBLE_R_TLV("DAC2 Digital Fine Playback Volume",
858 TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
859 0, 0x3f, 0, digital_fine_tlv),
860
861 SOC_DOUBLE_R_TLV("DAC1 Digital Coarse Playback Volume",
862 TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
863 6, 0x2, 0, digital_coarse_tlv),
864 SOC_DOUBLE_R_TLV("DAC2 Digital Coarse Playback Volume",
865 TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
866 6, 0x2, 0, digital_coarse_tlv),
867
868 SOC_DOUBLE_R_TLV("DAC1 Analog Playback Volume",
869 TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
870 3, 0x12, 1, analog_tlv),
871 SOC_DOUBLE_R_TLV("DAC2 Analog Playback Volume",
872 TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
873 3, 0x12, 1, analog_tlv),
874 SOC_DOUBLE_R("DAC1 Analog Playback Switch",
875 TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
876 1, 1, 0),
877 SOC_DOUBLE_R("DAC2 Analog Playback Switch",
878 TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
879 1, 1, 0),
880
881 /* Common voice downlink gain controls */
882 SOC_SINGLE_TLV("DAC Voice Digital Downlink Volume",
883 TWL4030_REG_VRXPGA, 0, 0x31, 0, digital_voice_downlink_tlv),
884
885 SOC_SINGLE_TLV("DAC Voice Analog Downlink Volume",
886 TWL4030_REG_VDL_APGA_CTL, 3, 0x12, 1, analog_tlv),
887
888 SOC_SINGLE("DAC Voice Analog Downlink Switch",
889 TWL4030_REG_VDL_APGA_CTL, 1, 1, 0),
890
891 /* Separate output gain controls */
892 SOC_DOUBLE_R_TLV_TWL4030("PreDriv Playback Volume",
893 TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL,
894 4, 3, 0, output_tvl),
895
896 SOC_DOUBLE_TLV_TWL4030("Headset Playback Volume",
897 TWL4030_REG_HS_GAIN_SET, 0, 2, 3, 0, output_tvl),
898
899 SOC_DOUBLE_R_TLV_TWL4030("Carkit Playback Volume",
900 TWL4030_REG_PRECKL_CTL, TWL4030_REG_PRECKR_CTL,
901 4, 3, 0, output_tvl),
902
903 SOC_SINGLE_TLV_TWL4030("Earpiece Playback Volume",
904 TWL4030_REG_EAR_CTL, 4, 3, 0, output_ear_tvl),
905
906 /* Common capture gain controls */
907 SOC_DOUBLE_R_TLV("TX1 Digital Capture Volume",
908 TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA,
909 0, 0x1f, 0, digital_capture_tlv),
910 SOC_DOUBLE_R_TLV("TX2 Digital Capture Volume",
911 TWL4030_REG_AVTXL2PGA, TWL4030_REG_AVTXR2PGA,
912 0, 0x1f, 0, digital_capture_tlv),
913
914 SOC_DOUBLE_TLV("Analog Capture Volume", TWL4030_REG_ANAMIC_GAIN,
915 0, 3, 5, 0, input_gain_tlv),
916
917 SOC_ENUM("HS ramp delay", twl4030_rampdelay_enum),
918 };
919
920 static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
921 /* Left channel inputs */
922 SND_SOC_DAPM_INPUT("MAINMIC"),
923 SND_SOC_DAPM_INPUT("HSMIC"),
924 SND_SOC_DAPM_INPUT("AUXL"),
925 SND_SOC_DAPM_INPUT("CARKITMIC"),
926 /* Right channel inputs */
927 SND_SOC_DAPM_INPUT("SUBMIC"),
928 SND_SOC_DAPM_INPUT("AUXR"),
929 /* Digital microphones (Stereo) */
930 SND_SOC_DAPM_INPUT("DIGIMIC0"),
931 SND_SOC_DAPM_INPUT("DIGIMIC1"),
932
933 /* Outputs */
934 SND_SOC_DAPM_OUTPUT("OUTL"),
935 SND_SOC_DAPM_OUTPUT("OUTR"),
936 SND_SOC_DAPM_OUTPUT("EARPIECE"),
937 SND_SOC_DAPM_OUTPUT("PREDRIVEL"),
938 SND_SOC_DAPM_OUTPUT("PREDRIVER"),
939 SND_SOC_DAPM_OUTPUT("HSOL"),
940 SND_SOC_DAPM_OUTPUT("HSOR"),
941 SND_SOC_DAPM_OUTPUT("CARKITL"),
942 SND_SOC_DAPM_OUTPUT("CARKITR"),
943 SND_SOC_DAPM_OUTPUT("HFL"),
944 SND_SOC_DAPM_OUTPUT("HFR"),
945
946 /* DACs */
947 SND_SOC_DAPM_DAC("DAC Right1", "Right Front Playback",
948 SND_SOC_NOPM, 0, 0),
949 SND_SOC_DAPM_DAC("DAC Left1", "Left Front Playback",
950 SND_SOC_NOPM, 0, 0),
951 SND_SOC_DAPM_DAC("DAC Right2", "Right Rear Playback",
952 SND_SOC_NOPM, 0, 0),
953 SND_SOC_DAPM_DAC("DAC Left2", "Left Rear Playback",
954 SND_SOC_NOPM, 0, 0),
955 SND_SOC_DAPM_DAC("DAC Voice", "Voice Playback",
956 SND_SOC_NOPM, 0, 0),
957
958 /* Analog PGAs */
959 SND_SOC_DAPM_PGA("ARXR1_APGA", TWL4030_REG_ARXR1_APGA_CTL,
960 0, 0, NULL, 0),
961 SND_SOC_DAPM_PGA("ARXL1_APGA", TWL4030_REG_ARXL1_APGA_CTL,
962 0, 0, NULL, 0),
963 SND_SOC_DAPM_PGA("ARXR2_APGA", TWL4030_REG_ARXR2_APGA_CTL,
964 0, 0, NULL, 0),
965 SND_SOC_DAPM_PGA("ARXL2_APGA", TWL4030_REG_ARXL2_APGA_CTL,
966 0, 0, NULL, 0),
967 SND_SOC_DAPM_PGA("VDL_APGA", TWL4030_REG_VDL_APGA_CTL,
968 0, 0, NULL, 0),
969
970 /* Analog bypasses */
971 SND_SOC_DAPM_SWITCH_E("Right1 Analog Loopback", SND_SOC_NOPM, 0, 0,
972 &twl4030_dapm_abypassr1_control, bypass_event,
973 SND_SOC_DAPM_POST_REG),
974 SND_SOC_DAPM_SWITCH_E("Left1 Analog Loopback", SND_SOC_NOPM, 0, 0,
975 &twl4030_dapm_abypassl1_control,
976 bypass_event, SND_SOC_DAPM_POST_REG),
977 SND_SOC_DAPM_SWITCH_E("Right2 Analog Loopback", SND_SOC_NOPM, 0, 0,
978 &twl4030_dapm_abypassr2_control,
979 bypass_event, SND_SOC_DAPM_POST_REG),
980 SND_SOC_DAPM_SWITCH_E("Left2 Analog Loopback", SND_SOC_NOPM, 0, 0,
981 &twl4030_dapm_abypassl2_control,
982 bypass_event, SND_SOC_DAPM_POST_REG),
983 SND_SOC_DAPM_SWITCH_E("Voice Analog Loopback", SND_SOC_NOPM, 0, 0,
984 &twl4030_dapm_abypassv_control,
985 bypass_event, SND_SOC_DAPM_POST_REG),
986
987 /* Digital bypasses */
988 SND_SOC_DAPM_SWITCH_E("Left Digital Loopback", SND_SOC_NOPM, 0, 0,
989 &twl4030_dapm_dbypassl_control, bypass_event,
990 SND_SOC_DAPM_POST_REG),
991 SND_SOC_DAPM_SWITCH_E("Right Digital Loopback", SND_SOC_NOPM, 0, 0,
992 &twl4030_dapm_dbypassr_control, bypass_event,
993 SND_SOC_DAPM_POST_REG),
994
995 SND_SOC_DAPM_MIXER("Analog R1 Playback Mixer", TWL4030_REG_AVDAC_CTL,
996 0, 0, NULL, 0),
997 SND_SOC_DAPM_MIXER("Analog L1 Playback Mixer", TWL4030_REG_AVDAC_CTL,
998 1, 0, NULL, 0),
999 SND_SOC_DAPM_MIXER("Analog R2 Playback Mixer", TWL4030_REG_AVDAC_CTL,
1000 2, 0, NULL, 0),
1001 SND_SOC_DAPM_MIXER("Analog L2 Playback Mixer", TWL4030_REG_AVDAC_CTL,
1002 3, 0, NULL, 0),
1003 SND_SOC_DAPM_MIXER("Analog Voice Playback Mixer", TWL4030_REG_AVDAC_CTL,
1004 4, 0, NULL, 0),
1005
1006 /* Output MIXER controls */
1007 /* Earpiece */
1008 SND_SOC_DAPM_MIXER("Earpiece Mixer", SND_SOC_NOPM, 0, 0,
1009 &twl4030_dapm_earpiece_controls[0],
1010 ARRAY_SIZE(twl4030_dapm_earpiece_controls)),
1011 /* PreDrivL/R */
1012 SND_SOC_DAPM_MIXER("PredriveL Mixer", SND_SOC_NOPM, 0, 0,
1013 &twl4030_dapm_predrivel_controls[0],
1014 ARRAY_SIZE(twl4030_dapm_predrivel_controls)),
1015 SND_SOC_DAPM_MIXER("PredriveR Mixer", SND_SOC_NOPM, 0, 0,
1016 &twl4030_dapm_predriver_controls[0],
1017 ARRAY_SIZE(twl4030_dapm_predriver_controls)),
1018 /* HeadsetL/R */
1019 SND_SOC_DAPM_MIXER_E("HeadsetL Mixer", SND_SOC_NOPM, 0, 0,
1020 &twl4030_dapm_hsol_controls[0],
1021 ARRAY_SIZE(twl4030_dapm_hsol_controls), headsetl_event,
1022 SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1023 SND_SOC_DAPM_MIXER("HeadsetR Mixer", SND_SOC_NOPM, 0, 0,
1024 &twl4030_dapm_hsor_controls[0],
1025 ARRAY_SIZE(twl4030_dapm_hsor_controls)),
1026 /* CarkitL/R */
1027 SND_SOC_DAPM_MIXER("CarkitL Mixer", SND_SOC_NOPM, 0, 0,
1028 &twl4030_dapm_carkitl_controls[0],
1029 ARRAY_SIZE(twl4030_dapm_carkitl_controls)),
1030 SND_SOC_DAPM_MIXER("CarkitR Mixer", SND_SOC_NOPM, 0, 0,
1031 &twl4030_dapm_carkitr_controls[0],
1032 ARRAY_SIZE(twl4030_dapm_carkitr_controls)),
1033
1034 /* Output MUX controls */
1035 /* HandsfreeL/R */
1036 SND_SOC_DAPM_MUX_E("HandsfreeL Mux", TWL4030_REG_HFL_CTL, 5, 0,
1037 &twl4030_dapm_handsfreel_control, handsfree_event,
1038 SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1039 SND_SOC_DAPM_MUX_E("HandsfreeR Mux", TWL4030_REG_HFR_CTL, 5, 0,
1040 &twl4030_dapm_handsfreer_control, handsfree_event,
1041 SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1042
1043 /* Introducing four virtual ADC, since TWL4030 have four channel for
1044 capture */
1045 SND_SOC_DAPM_ADC("ADC Virtual Left1", "Left Front Capture",
1046 SND_SOC_NOPM, 0, 0),
1047 SND_SOC_DAPM_ADC("ADC Virtual Right1", "Right Front Capture",
1048 SND_SOC_NOPM, 0, 0),
1049 SND_SOC_DAPM_ADC("ADC Virtual Left2", "Left Rear Capture",
1050 SND_SOC_NOPM, 0, 0),
1051 SND_SOC_DAPM_ADC("ADC Virtual Right2", "Right Rear Capture",
1052 SND_SOC_NOPM, 0, 0),
1053
1054 /* Analog/Digital mic path selection.
1055 TX1 Left/Right: either analog Left/Right or Digimic0
1056 TX2 Left/Right: either analog Left/Right or Digimic1 */
1057 SND_SOC_DAPM_MUX_E("TX1 Capture Route", SND_SOC_NOPM, 0, 0,
1058 &twl4030_dapm_micpathtx1_control, micpath_event,
1059 SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD|
1060 SND_SOC_DAPM_POST_REG),
1061 SND_SOC_DAPM_MUX_E("TX2 Capture Route", SND_SOC_NOPM, 0, 0,
1062 &twl4030_dapm_micpathtx2_control, micpath_event,
1063 SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD|
1064 SND_SOC_DAPM_POST_REG),
1065
1066 /* Analog input muxes with switch for the capture amplifiers */
1067 SND_SOC_DAPM_VALUE_MUX("Analog Left Capture Route",
1068 TWL4030_REG_ANAMICL, 4, 0, &twl4030_dapm_analoglmic_control),
1069 SND_SOC_DAPM_VALUE_MUX("Analog Right Capture Route",
1070 TWL4030_REG_ANAMICR, 4, 0, &twl4030_dapm_analogrmic_control),
1071
1072 SND_SOC_DAPM_PGA("ADC Physical Left",
1073 TWL4030_REG_AVADC_CTL, 3, 0, NULL, 0),
1074 SND_SOC_DAPM_PGA("ADC Physical Right",
1075 TWL4030_REG_AVADC_CTL, 1, 0, NULL, 0),
1076
1077 SND_SOC_DAPM_PGA("Digimic0 Enable",
1078 TWL4030_REG_ADCMICSEL, 1, 0, NULL, 0),
1079 SND_SOC_DAPM_PGA("Digimic1 Enable",
1080 TWL4030_REG_ADCMICSEL, 3, 0, NULL, 0),
1081
1082 SND_SOC_DAPM_MICBIAS("Mic Bias 1", TWL4030_REG_MICBIAS_CTL, 0, 0),
1083 SND_SOC_DAPM_MICBIAS("Mic Bias 2", TWL4030_REG_MICBIAS_CTL, 1, 0),
1084 SND_SOC_DAPM_MICBIAS("Headset Mic Bias", TWL4030_REG_MICBIAS_CTL, 2, 0),
1085
1086 };
1087
1088 static const struct snd_soc_dapm_route intercon[] = {
1089 {"Analog L1 Playback Mixer", NULL, "DAC Left1"},
1090 {"Analog R1 Playback Mixer", NULL, "DAC Right1"},
1091 {"Analog L2 Playback Mixer", NULL, "DAC Left2"},
1092 {"Analog R2 Playback Mixer", NULL, "DAC Right2"},
1093 {"Analog Voice Playback Mixer", NULL, "DAC Voice"},
1094
1095 {"ARXL1_APGA", NULL, "Analog L1 Playback Mixer"},
1096 {"ARXR1_APGA", NULL, "Analog R1 Playback Mixer"},
1097 {"ARXL2_APGA", NULL, "Analog L2 Playback Mixer"},
1098 {"ARXR2_APGA", NULL, "Analog R2 Playback Mixer"},
1099 {"VDL_APGA", NULL, "Analog Voice Playback Mixer"},
1100
1101 /* Internal playback routings */
1102 /* Earpiece */
1103 {"Earpiece Mixer", "Voice", "VDL_APGA"},
1104 {"Earpiece Mixer", "AudioL1", "ARXL1_APGA"},
1105 {"Earpiece Mixer", "AudioL2", "ARXL2_APGA"},
1106 {"Earpiece Mixer", "AudioR1", "ARXR1_APGA"},
1107 /* PreDrivL */
1108 {"PredriveL Mixer", "Voice", "VDL_APGA"},
1109 {"PredriveL Mixer", "AudioL1", "ARXL1_APGA"},
1110 {"PredriveL Mixer", "AudioL2", "ARXL2_APGA"},
1111 {"PredriveL Mixer", "AudioR2", "ARXR2_APGA"},
1112 /* PreDrivR */
1113 {"PredriveR Mixer", "Voice", "VDL_APGA"},
1114 {"PredriveR Mixer", "AudioR1", "ARXR1_APGA"},
1115 {"PredriveR Mixer", "AudioR2", "ARXR2_APGA"},
1116 {"PredriveR Mixer", "AudioL2", "ARXL2_APGA"},
1117 /* HeadsetL */
1118 {"HeadsetL Mixer", "Voice", "VDL_APGA"},
1119 {"HeadsetL Mixer", "AudioL1", "ARXL1_APGA"},
1120 {"HeadsetL Mixer", "AudioL2", "ARXL2_APGA"},
1121 /* HeadsetR */
1122 {"HeadsetR Mixer", "Voice", "VDL_APGA"},
1123 {"HeadsetR Mixer", "AudioR1", "ARXR1_APGA"},
1124 {"HeadsetR Mixer", "AudioR2", "ARXR2_APGA"},
1125 /* CarkitL */
1126 {"CarkitL Mixer", "Voice", "VDL_APGA"},
1127 {"CarkitL Mixer", "AudioL1", "ARXL1_APGA"},
1128 {"CarkitL Mixer", "AudioL2", "ARXL2_APGA"},
1129 /* CarkitR */
1130 {"CarkitR Mixer", "Voice", "VDL_APGA"},
1131 {"CarkitR Mixer", "AudioR1", "ARXR1_APGA"},
1132 {"CarkitR Mixer", "AudioR2", "ARXR2_APGA"},
1133 /* HandsfreeL */
1134 {"HandsfreeL Mux", "Voice", "VDL_APGA"},
1135 {"HandsfreeL Mux", "AudioL1", "ARXL1_APGA"},
1136 {"HandsfreeL Mux", "AudioL2", "ARXL2_APGA"},
1137 {"HandsfreeL Mux", "AudioR2", "ARXR2_APGA"},
1138 /* HandsfreeR */
1139 {"HandsfreeR Mux", "Voice", "VDL_APGA"},
1140 {"HandsfreeR Mux", "AudioR1", "ARXR1_APGA"},
1141 {"HandsfreeR Mux", "AudioR2", "ARXR2_APGA"},
1142 {"HandsfreeR Mux", "AudioL2", "ARXL2_APGA"},
1143
1144 /* outputs */
1145 {"OUTL", NULL, "ARXL2_APGA"},
1146 {"OUTR", NULL, "ARXR2_APGA"},
1147 {"EARPIECE", NULL, "Earpiece Mixer"},
1148 {"PREDRIVEL", NULL, "PredriveL Mixer"},
1149 {"PREDRIVER", NULL, "PredriveR Mixer"},
1150 {"HSOL", NULL, "HeadsetL Mixer"},
1151 {"HSOR", NULL, "HeadsetR Mixer"},
1152 {"CARKITL", NULL, "CarkitL Mixer"},
1153 {"CARKITR", NULL, "CarkitR Mixer"},
1154 {"HFL", NULL, "HandsfreeL Mux"},
1155 {"HFR", NULL, "HandsfreeR Mux"},
1156
1157 /* Capture path */
1158 {"Analog Left Capture Route", "Main mic", "MAINMIC"},
1159 {"Analog Left Capture Route", "Headset mic", "HSMIC"},
1160 {"Analog Left Capture Route", "AUXL", "AUXL"},
1161 {"Analog Left Capture Route", "Carkit mic", "CARKITMIC"},
1162
1163 {"Analog Right Capture Route", "Sub mic", "SUBMIC"},
1164 {"Analog Right Capture Route", "AUXR", "AUXR"},
1165
1166 {"ADC Physical Left", NULL, "Analog Left Capture Route"},
1167 {"ADC Physical Right", NULL, "Analog Right Capture Route"},
1168
1169 {"Digimic0 Enable", NULL, "DIGIMIC0"},
1170 {"Digimic1 Enable", NULL, "DIGIMIC1"},
1171
1172 /* TX1 Left capture path */
1173 {"TX1 Capture Route", "Analog", "ADC Physical Left"},
1174 {"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1175 /* TX1 Right capture path */
1176 {"TX1 Capture Route", "Analog", "ADC Physical Right"},
1177 {"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1178 /* TX2 Left capture path */
1179 {"TX2 Capture Route", "Analog", "ADC Physical Left"},
1180 {"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1181 /* TX2 Right capture path */
1182 {"TX2 Capture Route", "Analog", "ADC Physical Right"},
1183 {"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1184
1185 {"ADC Virtual Left1", NULL, "TX1 Capture Route"},
1186 {"ADC Virtual Right1", NULL, "TX1 Capture Route"},
1187 {"ADC Virtual Left2", NULL, "TX2 Capture Route"},
1188 {"ADC Virtual Right2", NULL, "TX2 Capture Route"},
1189
1190 /* Analog bypass routes */
1191 {"Right1 Analog Loopback", "Switch", "Analog Right Capture Route"},
1192 {"Left1 Analog Loopback", "Switch", "Analog Left Capture Route"},
1193 {"Right2 Analog Loopback", "Switch", "Analog Right Capture Route"},
1194 {"Left2 Analog Loopback", "Switch", "Analog Left Capture Route"},
1195 {"Voice Analog Loopback", "Switch", "Analog Left Capture Route"},
1196
1197 {"Analog R1 Playback Mixer", NULL, "Right1 Analog Loopback"},
1198 {"Analog L1 Playback Mixer", NULL, "Left1 Analog Loopback"},
1199 {"Analog R2 Playback Mixer", NULL, "Right2 Analog Loopback"},
1200 {"Analog L2 Playback Mixer", NULL, "Left2 Analog Loopback"},
1201 {"Analog Voice Playback Mixer", NULL, "Voice Analog Loopback"},
1202
1203 /* Digital bypass routes */
1204 {"Right Digital Loopback", "Volume", "TX1 Capture Route"},
1205 {"Left Digital Loopback", "Volume", "TX1 Capture Route"},
1206
1207 {"Analog R2 Playback Mixer", NULL, "Right Digital Loopback"},
1208 {"Analog L2 Playback Mixer", NULL, "Left Digital Loopback"},
1209
1210 };
1211
1212 static int twl4030_add_widgets(struct snd_soc_codec *codec)
1213 {
1214 snd_soc_dapm_new_controls(codec, twl4030_dapm_widgets,
1215 ARRAY_SIZE(twl4030_dapm_widgets));
1216
1217 snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
1218
1219 snd_soc_dapm_new_widgets(codec);
1220 return 0;
1221 }
1222
1223 static int twl4030_set_bias_level(struct snd_soc_codec *codec,
1224 enum snd_soc_bias_level level)
1225 {
1226 struct twl4030_priv *twl4030 = codec->private_data;
1227
1228 switch (level) {
1229 case SND_SOC_BIAS_ON:
1230 twl4030_codec_mute(codec, 0);
1231 break;
1232 case SND_SOC_BIAS_PREPARE:
1233 twl4030_power_up(codec);
1234 if (twl4030->bypass_state)
1235 twl4030_codec_mute(codec, 0);
1236 else
1237 twl4030_codec_mute(codec, 1);
1238 break;
1239 case SND_SOC_BIAS_STANDBY:
1240 twl4030_power_up(codec);
1241 if (twl4030->bypass_state)
1242 twl4030_codec_mute(codec, 0);
1243 else
1244 twl4030_codec_mute(codec, 1);
1245 break;
1246 case SND_SOC_BIAS_OFF:
1247 twl4030_power_down(codec);
1248 break;
1249 }
1250 codec->bias_level = level;
1251
1252 return 0;
1253 }
1254
1255 static void twl4030_constraints(struct twl4030_priv *twl4030,
1256 struct snd_pcm_substream *mst_substream)
1257 {
1258 struct snd_pcm_substream *slv_substream;
1259
1260 /* Pick the stream, which need to be constrained */
1261 if (mst_substream == twl4030->master_substream)
1262 slv_substream = twl4030->slave_substream;
1263 else if (mst_substream == twl4030->slave_substream)
1264 slv_substream = twl4030->master_substream;
1265 else /* This should not happen.. */
1266 return;
1267
1268 /* Set the constraints according to the already configured stream */
1269 snd_pcm_hw_constraint_minmax(slv_substream->runtime,
1270 SNDRV_PCM_HW_PARAM_RATE,
1271 twl4030->rate,
1272 twl4030->rate);
1273
1274 snd_pcm_hw_constraint_minmax(slv_substream->runtime,
1275 SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
1276 twl4030->sample_bits,
1277 twl4030->sample_bits);
1278
1279 snd_pcm_hw_constraint_minmax(slv_substream->runtime,
1280 SNDRV_PCM_HW_PARAM_CHANNELS,
1281 twl4030->channels,
1282 twl4030->channels);
1283 }
1284
1285 /* In case of 4 channel mode, the RX1 L/R for playback and the TX2 L/R for
1286 * capture has to be enabled/disabled. */
1287 static void twl4030_tdm_enable(struct snd_soc_codec *codec, int direction,
1288 int enable)
1289 {
1290 u8 reg, mask;
1291
1292 reg = twl4030_read_reg_cache(codec, TWL4030_REG_OPTION);
1293
1294 if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1295 mask = TWL4030_ARXL1_VRX_EN | TWL4030_ARXR1_EN;
1296 else
1297 mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1298
1299 if (enable)
1300 reg |= mask;
1301 else
1302 reg &= ~mask;
1303
1304 twl4030_write(codec, TWL4030_REG_OPTION, reg);
1305 }
1306
1307 static int twl4030_startup(struct snd_pcm_substream *substream,
1308 struct snd_soc_dai *dai)
1309 {
1310 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1311 struct snd_soc_device *socdev = rtd->socdev;
1312 struct snd_soc_codec *codec = socdev->card->codec;
1313 struct twl4030_priv *twl4030 = codec->private_data;
1314
1315 if (twl4030->master_substream) {
1316 twl4030->slave_substream = substream;
1317 /* The DAI has one configuration for playback and capture, so
1318 * if the DAI has been already configured then constrain this
1319 * substream to match it. */
1320 if (twl4030->configured)
1321 twl4030_constraints(twl4030, twl4030->master_substream);
1322 } else {
1323 if (!(twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE) &
1324 TWL4030_OPTION_1)) {
1325 /* In option2 4 channel is not supported, set the
1326 * constraint for the first stream for channels, the
1327 * second stream will 'inherit' this cosntraint */
1328 snd_pcm_hw_constraint_minmax(substream->runtime,
1329 SNDRV_PCM_HW_PARAM_CHANNELS,
1330 2, 2);
1331 }
1332 twl4030->master_substream = substream;
1333 }
1334
1335 return 0;
1336 }
1337
1338 static void twl4030_shutdown(struct snd_pcm_substream *substream,
1339 struct snd_soc_dai *dai)
1340 {
1341 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1342 struct snd_soc_device *socdev = rtd->socdev;
1343 struct snd_soc_codec *codec = socdev->card->codec;
1344 struct twl4030_priv *twl4030 = codec->private_data;
1345
1346 if (twl4030->master_substream == substream)
1347 twl4030->master_substream = twl4030->slave_substream;
1348
1349 twl4030->slave_substream = NULL;
1350
1351 /* If all streams are closed, or the remaining stream has not yet
1352 * been configured than set the DAI as not configured. */
1353 if (!twl4030->master_substream)
1354 twl4030->configured = 0;
1355 else if (!twl4030->master_substream->runtime->channels)
1356 twl4030->configured = 0;
1357
1358 /* If the closing substream had 4 channel, do the necessary cleanup */
1359 if (substream->runtime->channels == 4)
1360 twl4030_tdm_enable(codec, substream->stream, 0);
1361 }
1362
1363 static int twl4030_hw_params(struct snd_pcm_substream *substream,
1364 struct snd_pcm_hw_params *params,
1365 struct snd_soc_dai *dai)
1366 {
1367 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1368 struct snd_soc_device *socdev = rtd->socdev;
1369 struct snd_soc_codec *codec = socdev->card->codec;
1370 struct twl4030_priv *twl4030 = codec->private_data;
1371 u8 mode, old_mode, format, old_format;
1372
1373 /* If the substream has 4 channel, do the necessary setup */
1374 if (params_channels(params) == 4) {
1375 /* Safety check: are we in the correct operating mode? */
1376 if ((twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE) &
1377 TWL4030_OPTION_1))
1378 twl4030_tdm_enable(codec, substream->stream, 1);
1379 else
1380 return -EINVAL;
1381 }
1382
1383 if (twl4030->configured)
1384 /* Ignoring hw_params for already configured DAI */
1385 return 0;
1386
1387 /* bit rate */
1388 old_mode = twl4030_read_reg_cache(codec,
1389 TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1390 mode = old_mode & ~TWL4030_APLL_RATE;
1391
1392 switch (params_rate(params)) {
1393 case 8000:
1394 mode |= TWL4030_APLL_RATE_8000;
1395 break;
1396 case 11025:
1397 mode |= TWL4030_APLL_RATE_11025;
1398 break;
1399 case 12000:
1400 mode |= TWL4030_APLL_RATE_12000;
1401 break;
1402 case 16000:
1403 mode |= TWL4030_APLL_RATE_16000;
1404 break;
1405 case 22050:
1406 mode |= TWL4030_APLL_RATE_22050;
1407 break;
1408 case 24000:
1409 mode |= TWL4030_APLL_RATE_24000;
1410 break;
1411 case 32000:
1412 mode |= TWL4030_APLL_RATE_32000;
1413 break;
1414 case 44100:
1415 mode |= TWL4030_APLL_RATE_44100;
1416 break;
1417 case 48000:
1418 mode |= TWL4030_APLL_RATE_48000;
1419 break;
1420 case 96000:
1421 mode |= TWL4030_APLL_RATE_96000;
1422 break;
1423 default:
1424 printk(KERN_ERR "TWL4030 hw params: unknown rate %d\n",
1425 params_rate(params));
1426 return -EINVAL;
1427 }
1428
1429 if (mode != old_mode) {
1430 /* change rate and set CODECPDZ */
1431 twl4030_codec_enable(codec, 0);
1432 twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
1433 twl4030_codec_enable(codec, 1);
1434 }
1435
1436 /* sample size */
1437 old_format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF);
1438 format = old_format;
1439 format &= ~TWL4030_DATA_WIDTH;
1440 switch (params_format(params)) {
1441 case SNDRV_PCM_FORMAT_S16_LE:
1442 format |= TWL4030_DATA_WIDTH_16S_16W;
1443 break;
1444 case SNDRV_PCM_FORMAT_S24_LE:
1445 format |= TWL4030_DATA_WIDTH_32S_24W;
1446 break;
1447 default:
1448 printk(KERN_ERR "TWL4030 hw params: unknown format %d\n",
1449 params_format(params));
1450 return -EINVAL;
1451 }
1452
1453 if (format != old_format) {
1454
1455 /* clear CODECPDZ before changing format (codec requirement) */
1456 twl4030_codec_enable(codec, 0);
1457
1458 /* change format */
1459 twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1460
1461 /* set CODECPDZ afterwards */
1462 twl4030_codec_enable(codec, 1);
1463 }
1464
1465 /* Store the important parameters for the DAI configuration and set
1466 * the DAI as configured */
1467 twl4030->configured = 1;
1468 twl4030->rate = params_rate(params);
1469 twl4030->sample_bits = hw_param_interval(params,
1470 SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;
1471 twl4030->channels = params_channels(params);
1472
1473 /* If both playback and capture streams are open, and one of them
1474 * is setting the hw parameters right now (since we are here), set
1475 * constraints to the other stream to match the current one. */
1476 if (twl4030->slave_substream)
1477 twl4030_constraints(twl4030, substream);
1478
1479 return 0;
1480 }
1481
1482 static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1483 int clk_id, unsigned int freq, int dir)
1484 {
1485 struct snd_soc_codec *codec = codec_dai->codec;
1486 u8 infreq;
1487
1488 switch (freq) {
1489 case 19200000:
1490 infreq = TWL4030_APLL_INFREQ_19200KHZ;
1491 break;
1492 case 26000000:
1493 infreq = TWL4030_APLL_INFREQ_26000KHZ;
1494 break;
1495 case 38400000:
1496 infreq = TWL4030_APLL_INFREQ_38400KHZ;
1497 break;
1498 default:
1499 printk(KERN_ERR "TWL4030 set sysclk: unknown rate %d\n",
1500 freq);
1501 return -EINVAL;
1502 }
1503
1504 infreq |= TWL4030_APLL_EN;
1505 twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq);
1506
1507 return 0;
1508 }
1509
1510 static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai,
1511 unsigned int fmt)
1512 {
1513 struct snd_soc_codec *codec = codec_dai->codec;
1514 u8 old_format, format;
1515
1516 /* get format */
1517 old_format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF);
1518 format = old_format;
1519
1520 /* set master/slave audio interface */
1521 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1522 case SND_SOC_DAIFMT_CBM_CFM:
1523 format &= ~(TWL4030_AIF_SLAVE_EN);
1524 format &= ~(TWL4030_CLK256FS_EN);
1525 break;
1526 case SND_SOC_DAIFMT_CBS_CFS:
1527 format |= TWL4030_AIF_SLAVE_EN;
1528 format |= TWL4030_CLK256FS_EN;
1529 break;
1530 default:
1531 return -EINVAL;
1532 }
1533
1534 /* interface format */
1535 format &= ~TWL4030_AIF_FORMAT;
1536 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1537 case SND_SOC_DAIFMT_I2S:
1538 format |= TWL4030_AIF_FORMAT_CODEC;
1539 break;
1540 case SND_SOC_DAIFMT_DSP_A:
1541 format |= TWL4030_AIF_FORMAT_TDM;
1542 break;
1543 default:
1544 return -EINVAL;
1545 }
1546
1547 if (format != old_format) {
1548
1549 /* clear CODECPDZ before changing format (codec requirement) */
1550 twl4030_codec_enable(codec, 0);
1551
1552 /* change format */
1553 twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
1554
1555 /* set CODECPDZ afterwards */
1556 twl4030_codec_enable(codec, 1);
1557 }
1558
1559 return 0;
1560 }
1561
1562 static int twl4030_voice_startup(struct snd_pcm_substream *substream,
1563 struct snd_soc_dai *dai)
1564 {
1565 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1566 struct snd_soc_device *socdev = rtd->socdev;
1567 struct snd_soc_codec *codec = socdev->card->codec;
1568 u8 infreq;
1569 u8 mode;
1570
1571 /* If the system master clock is not 26MHz, the voice PCM interface is
1572 * not avilable.
1573 */
1574 infreq = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL)
1575 & TWL4030_APLL_INFREQ;
1576
1577 if (infreq != TWL4030_APLL_INFREQ_26000KHZ) {
1578 printk(KERN_ERR "TWL4030 voice startup: "
1579 "MCLK is not 26MHz, call set_sysclk() on init\n");
1580 return -EINVAL;
1581 }
1582
1583 /* If the codec mode is not option2, the voice PCM interface is not
1584 * avilable.
1585 */
1586 mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE)
1587 & TWL4030_OPT_MODE;
1588
1589 if (mode != TWL4030_OPTION_2) {
1590 printk(KERN_ERR "TWL4030 voice startup: "
1591 "the codec mode is not option2\n");
1592 return -EINVAL;
1593 }
1594
1595 return 0;
1596 }
1597
1598 static int twl4030_voice_hw_params(struct snd_pcm_substream *substream,
1599 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
1600 {
1601 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1602 struct snd_soc_device *socdev = rtd->socdev;
1603 struct snd_soc_codec *codec = socdev->card->codec;
1604 u8 old_mode, mode;
1605
1606 /* bit rate */
1607 old_mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE)
1608 & ~(TWL4030_CODECPDZ);
1609 mode = old_mode;
1610
1611 switch (params_rate(params)) {
1612 case 8000:
1613 mode &= ~(TWL4030_SEL_16K);
1614 break;
1615 case 16000:
1616 mode |= TWL4030_SEL_16K;
1617 break;
1618 default:
1619 printk(KERN_ERR "TWL4030 voice hw params: unknown rate %d\n",
1620 params_rate(params));
1621 return -EINVAL;
1622 }
1623
1624 if (mode != old_mode) {
1625 /* change rate and set CODECPDZ */
1626 twl4030_codec_enable(codec, 0);
1627 twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
1628 twl4030_codec_enable(codec, 1);
1629 }
1630
1631 return 0;
1632 }
1633
1634 static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1635 int clk_id, unsigned int freq, int dir)
1636 {
1637 struct snd_soc_codec *codec = codec_dai->codec;
1638 u8 infreq;
1639
1640 switch (freq) {
1641 case 26000000:
1642 infreq = TWL4030_APLL_INFREQ_26000KHZ;
1643 break;
1644 default:
1645 printk(KERN_ERR "TWL4030 voice set sysclk: unknown rate %d\n",
1646 freq);
1647 return -EINVAL;
1648 }
1649
1650 infreq |= TWL4030_APLL_EN;
1651 twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq);
1652
1653 return 0;
1654 }
1655
1656 static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
1657 unsigned int fmt)
1658 {
1659 struct snd_soc_codec *codec = codec_dai->codec;
1660 u8 old_format, format;
1661
1662 /* get format */
1663 old_format = twl4030_read_reg_cache(codec, TWL4030_REG_VOICE_IF);
1664 format = old_format;
1665
1666 /* set master/slave audio interface */
1667 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1668 case SND_SOC_DAIFMT_CBS_CFM:
1669 format &= ~(TWL4030_VIF_SLAVE_EN);
1670 break;
1671 case SND_SOC_DAIFMT_CBS_CFS:
1672 format |= TWL4030_VIF_SLAVE_EN;
1673 break;
1674 default:
1675 return -EINVAL;
1676 }
1677
1678 /* clock inversion */
1679 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1680 case SND_SOC_DAIFMT_IB_NF:
1681 format &= ~(TWL4030_VIF_FORMAT);
1682 break;
1683 case SND_SOC_DAIFMT_NB_IF:
1684 format |= TWL4030_VIF_FORMAT;
1685 break;
1686 default:
1687 return -EINVAL;
1688 }
1689
1690 if (format != old_format) {
1691 /* change format and set CODECPDZ */
1692 twl4030_codec_enable(codec, 0);
1693 twl4030_write(codec, TWL4030_REG_VOICE_IF, format);
1694 twl4030_codec_enable(codec, 1);
1695 }
1696
1697 return 0;
1698 }
1699
1700 #define TWL4030_RATES (SNDRV_PCM_RATE_8000_48000)
1701 #define TWL4030_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FORMAT_S24_LE)
1702
1703 static struct snd_soc_dai_ops twl4030_dai_ops = {
1704 .startup = twl4030_startup,
1705 .shutdown = twl4030_shutdown,
1706 .hw_params = twl4030_hw_params,
1707 .set_sysclk = twl4030_set_dai_sysclk,
1708 .set_fmt = twl4030_set_dai_fmt,
1709 };
1710
1711 static struct snd_soc_dai_ops twl4030_dai_voice_ops = {
1712 .startup = twl4030_voice_startup,
1713 .hw_params = twl4030_voice_hw_params,
1714 .set_sysclk = twl4030_voice_set_dai_sysclk,
1715 .set_fmt = twl4030_voice_set_dai_fmt,
1716 };
1717
1718 struct snd_soc_dai twl4030_dai[] = {
1719 {
1720 .name = "twl4030",
1721 .playback = {
1722 .stream_name = "Playback",
1723 .channels_min = 2,
1724 .channels_max = 4,
1725 .rates = TWL4030_RATES | SNDRV_PCM_RATE_96000,
1726 .formats = TWL4030_FORMATS,},
1727 .capture = {
1728 .stream_name = "Capture",
1729 .channels_min = 2,
1730 .channels_max = 4,
1731 .rates = TWL4030_RATES,
1732 .formats = TWL4030_FORMATS,},
1733 .ops = &twl4030_dai_ops,
1734 },
1735 {
1736 .name = "twl4030 Voice",
1737 .playback = {
1738 .stream_name = "Playback",
1739 .channels_min = 1,
1740 .channels_max = 1,
1741 .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
1742 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
1743 .capture = {
1744 .stream_name = "Capture",
1745 .channels_min = 1,
1746 .channels_max = 2,
1747 .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
1748 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
1749 .ops = &twl4030_dai_voice_ops,
1750 },
1751 };
1752 EXPORT_SYMBOL_GPL(twl4030_dai);
1753
1754 static int twl4030_suspend(struct platform_device *pdev, pm_message_t state)
1755 {
1756 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1757 struct snd_soc_codec *codec = socdev->card->codec;
1758
1759 twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF);
1760
1761 return 0;
1762 }
1763
1764 static int twl4030_resume(struct platform_device *pdev)
1765 {
1766 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1767 struct snd_soc_codec *codec = socdev->card->codec;
1768
1769 twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1770 twl4030_set_bias_level(codec, codec->suspend_bias_level);
1771 return 0;
1772 }
1773
1774 /*
1775 * initialize the driver
1776 * register the mixer and dsp interfaces with the kernel
1777 */
1778
1779 static int twl4030_init(struct snd_soc_device *socdev)
1780 {
1781 struct snd_soc_codec *codec = socdev->card->codec;
1782 int ret = 0;
1783
1784 printk(KERN_INFO "TWL4030 Audio Codec init \n");
1785
1786 codec->name = "twl4030";
1787 codec->owner = THIS_MODULE;
1788 codec->read = twl4030_read_reg_cache;
1789 codec->write = twl4030_write;
1790 codec->set_bias_level = twl4030_set_bias_level;
1791 codec->dai = twl4030_dai;
1792 codec->num_dai = ARRAY_SIZE(twl4030_dai),
1793 codec->reg_cache_size = sizeof(twl4030_reg);
1794 codec->reg_cache = kmemdup(twl4030_reg, sizeof(twl4030_reg),
1795 GFP_KERNEL);
1796 if (codec->reg_cache == NULL)
1797 return -ENOMEM;
1798
1799 /* register pcms */
1800 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
1801 if (ret < 0) {
1802 printk(KERN_ERR "twl4030: failed to create pcms\n");
1803 goto pcm_err;
1804 }
1805
1806 twl4030_init_chip(codec);
1807
1808 /* power on device */
1809 twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1810
1811 snd_soc_add_controls(codec, twl4030_snd_controls,
1812 ARRAY_SIZE(twl4030_snd_controls));
1813 twl4030_add_widgets(codec);
1814
1815 ret = snd_soc_init_card(socdev);
1816 if (ret < 0) {
1817 printk(KERN_ERR "twl4030: failed to register card\n");
1818 goto card_err;
1819 }
1820
1821 return ret;
1822
1823 card_err:
1824 snd_soc_free_pcms(socdev);
1825 snd_soc_dapm_free(socdev);
1826 pcm_err:
1827 kfree(codec->reg_cache);
1828 return ret;
1829 }
1830
1831 static struct snd_soc_device *twl4030_socdev;
1832
1833 static int twl4030_probe(struct platform_device *pdev)
1834 {
1835 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1836 struct snd_soc_codec *codec;
1837 struct twl4030_priv *twl4030;
1838
1839 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
1840 if (codec == NULL)
1841 return -ENOMEM;
1842
1843 twl4030 = kzalloc(sizeof(struct twl4030_priv), GFP_KERNEL);
1844 if (twl4030 == NULL) {
1845 kfree(codec);
1846 return -ENOMEM;
1847 }
1848
1849 codec->private_data = twl4030;
1850 socdev->card->codec = codec;
1851 mutex_init(&codec->mutex);
1852 INIT_LIST_HEAD(&codec->dapm_widgets);
1853 INIT_LIST_HEAD(&codec->dapm_paths);
1854
1855 twl4030_socdev = socdev;
1856 twl4030_init(socdev);
1857
1858 return 0;
1859 }
1860
1861 static int twl4030_remove(struct platform_device *pdev)
1862 {
1863 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1864 struct snd_soc_codec *codec = socdev->card->codec;
1865
1866 printk(KERN_INFO "TWL4030 Audio Codec remove\n");
1867 twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF);
1868 snd_soc_free_pcms(socdev);
1869 snd_soc_dapm_free(socdev);
1870 kfree(codec->private_data);
1871 kfree(codec);
1872
1873 return 0;
1874 }
1875
1876 struct snd_soc_codec_device soc_codec_dev_twl4030 = {
1877 .probe = twl4030_probe,
1878 .remove = twl4030_remove,
1879 .suspend = twl4030_suspend,
1880 .resume = twl4030_resume,
1881 };
1882 EXPORT_SYMBOL_GPL(soc_codec_dev_twl4030);
1883
1884 static int __init twl4030_modinit(void)
1885 {
1886 return snd_soc_register_dais(&twl4030_dai[0], ARRAY_SIZE(twl4030_dai));
1887 }
1888 module_init(twl4030_modinit);
1889
1890 static void __exit twl4030_exit(void)
1891 {
1892 snd_soc_unregister_dais(&twl4030_dai[0], ARRAY_SIZE(twl4030_dai));
1893 }
1894 module_exit(twl4030_exit);
1895
1896 MODULE_DESCRIPTION("ASoC TWL4030 codec driver");
1897 MODULE_AUTHOR("Steve Sakoman");
1898 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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